This manual and the wiring diagram supplied with the unit must be kept in a dry
..... Cooling A35A27 ( source : air in 35°C d.b. / plant : air in 27°C d.b. 19°C w.b. ).
i migliori gradi centigradi
O
-FRIEND
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PACKAGED AIR CONDITIONERS AND HEAT PUMPS ROOF TOP FOR OUTDOOR INSTALLATION
INSTALLATION AND OPERATION MANUAL 1
Dear Customer, thank you for having purchased a FERROLI product. It is the result of many years of experiences and of particular research studies and has been made with top quality materials and advanced technologies. The CE mark guarantees that the products satisfy all the applicable European Directives. The qualitative level is kept under constant control and FERROLI products therefore offer Safety, Quality and Reliability. !"#$%#$&"#'%($)(!%*#)+,-%."+"($*#)(#$"'&(%/%0)"*#1(2#+1$"-)1/*3#$&"#,-%2!'$#*,"')4'1$)%(#1*#5"//#1*#,"-6%-+1('"*#1-"#*!78"'$# to variations without prior notice. Thank you once again for your preference FERROLI S.p.A.
The manufacturer declines all the responsabilities regarding inaccuracies contained in this manual, if due to printing or typing mistakes. The manufacturer reserves the right to apply changes and improvements to the products at any time and without notice.
2
TABLE OF CONTENTS GENERAL FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 General instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Unit dataplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Unit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Unit identification code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Description of components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Constructive configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 TECHNICAL DATA AND PERFORMANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 NOMINAL performances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Performances with NOT STANDARD air flow rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 COOLING performances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 HEATING performances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Hot water coil performances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Electrical heater coil performances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Condensing gas heating module performances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Plant side aeraulic performances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Available static head - unit without options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Available static head of the return air fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Pressure drops to be added due to condensate generation on the internal coil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Pressure drops - unit with option “Special filters” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Pressure drops - unit with option “Heating integration” : "Hot water coil" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Pressure drops - unit with option “Heating integration” : "Condensing gas heating module" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Pressure drops - unit with option “Heating integration” : "Electricl heater coil" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Pressure drops - unit with option “Droplets separator” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Pressure drops - unit with option “Air flow silencers” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Operating limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Noise levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Unit noise levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Internal fan noise levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Air flow silencers acoustic attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Return air fan noise levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Weights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Overall dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Minimum operating area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Hydraulic connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Aeraulic connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 General standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Condensing gas heating module connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 RECEIVING AND POSITIONING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Receiving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 START UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Start up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 CONTROL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Main structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Inputs and outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Controller technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Alarm table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Alarm diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Functions available for the user . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 Probe characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Serial communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Maintenace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 SAFETY AND POLLUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 General considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Refrigerant safety card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
3
GENERAL FEATURES General instructions This manual and the wiring diagram supplied with the unit must be kept in a dry place for possible future consultations . This manual provides information on installation and correct use and maintenance of the unit. Before carrying out installation, please carefully read all the information contained in this manual, which describes the procedures necessary for correct installation and use of the unit. Follow carefully the instructions contained in this manual and respect the safety regulations in force. The unit must be installed in conformity with the laws in force in the country of use. Unauthorized tampering with the electrical and mechanical equipment INVALIDATES THE WARRANTY. Check the electrical specifications given on the dataplate before making the electrical connections. Read the instructions given in the specific section on electrical connections. Deactivate the equipment in case of fault or poor operation. If the unit requires fixings, contact only specialized service centers recognized by the manufacturer and use original spare parts. The unit must be installed outdoor and connected to a proper air duct distribution system. Any use different from that permitted or outside the operating limits indicated in this manual is prohibited (unless previously agreed with the firm). 9&"# +1(!61'$!-"-# 2"'/)("*# 1(:# -"*,%(*17)/)$:# 6%-# 21+10"# %-# )(8!-:# 2!"# $%# (%(;'%+,/)1('"# 5)$&# $&"# )(6%-+1$)%(# 0)."(# )(# $&)*# manual.
Declaration of conformity The firm declares that the present unit complies with the requirements of the following directives : # # # #
"-6%-+1('"*#-"6"--"2#$%#!()$*#5)$&#EH#'%(*$-!'$)."#'%(6)0!-1$)%(#@H#21+,"-*#."-*)%(B operating in cooling mode at NOMINAL conditions A35A27 with STANDARD air flow rate and available static head. The sound power level is obtained starting from the data declared by the manufacturer of the fans.
Weights Model
35.1
45.1
55.1
70.2
90.2
110.2
140.2
180.2
220.2
U.M.
Constructive configuration Base version
E`
724
807
874
1052
1220
1345
1820
1940
2010
kg
1 damper version
ES
916
999
1066
1316
1484
1609
2148
2268
2338
kg
2 dampers version
ET
927
1010
1077
1327
1495
1620
2170
2290
2360
kg
3 dampers version
EH
1130
1213
1280
1577
1745
1870
2810
2930
3000
kg
Reduced
-3
-6
-2
-6
-17
-11
-22
0
-12
kg
Upsized
9
7
7
11
49
49
20
32
0
kg
2 rows with pipes
31
35
38
39
44
49
70
80
90
kg
2 rows with 3 way valve
36
40
43
47
52
57
82
92
102
kg
3 rows with pipes
36
41
46
46
53
61
84
98
114
kg
3 rows with 3 way valve
41
46
51
54
61
69
96
110
126
kg
Standard
21
21
21
37
37
37
74
74
74
kg
Options and accessories Internal fan
Hot water coil
Electrical heater coil
Upsized
34
34
34
52
52
52
104
104
104
kg
Standard
270
270
270
402
402
402
720
720
720
kg
Upsized
275
275
275
442
442
442
800
800
800
kg
External coils protection grilles
8
8
8
16
16
16
32
32
32
kg
Droplets separator
29
29
29
41
41
41
78
78
78
kg
Rigid pocket filters
21
21
21
31
31
31
62
62
62
kg
Air flow silencers
27
27
27
36
36
36
-
-
-
kg
Condensing gas heating module
The total weight of the unit, obtained summing up the weight of the unit in the chosen constructive configuration with the weight of the selected accessories, is referred to the transport weight. The weight of the accessories not present in the table reported above is negligible for the estimate of the total weight of the unit.
32
TECHNICAL DATA AND PERFORMANCES Overall dimensions Models 35.1 - 45.1 - 55.1 - 70.2 - 90.2 - 110.2 5
POS. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
35.1 45.1 55.1
2
1 39
39
6
6 53 106
A1 B C
53 106
LEGEND DESCRIPTION Refrigerant circuit inspection panel Electrical box inspection panel Internal fan inspection panel External coils External fans Lifting points Power supply holes Internal coils condensate drain Internal section condensate drain External section condensate drain Standard filters frame External air cap Gas heating module !"#$%&'!(&)*&+,"&)-&.!,/0(#.012%&.!,'13#(+01!,/ !"#$%&'!(&)4&.!,/0(#.012%&.!,'13#(+01!,
A = Spring vibration dampers holes distance
5
70.2 90.2 110.2
2
1
1 35.1 - 45.1 - 55.1
70.2 - 90.2 - 110.2
UM
1294 2205 2900 2955 3830 1188 1400 2735 2885 3535 4335 3815 4465 5265 930 465 1265
1894 2370 3065 3255 4265 1788 2000 2900 3050 3700 4500 4250 4900 5700 1200 600 1400
mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm
39
39
A1 A2 A3 A4 A5 B C D E F G H I L M N O
6
6 53 106
A1 B C
53 106
5 11
Q.E.
1555
1522
3 4 8
9
A2 D
245
7
VB VB
285 150 E
6
6
10 5
11
Q.E.
3
13
1522
1555
4
9
245
8
A4
VB VB with con modulo condensing gas termico a gas heating module
N
D
M
150
H
7 6
10
6
33
TECHNICAL DATA AND PERFORMANCES
5
Q.E.
1522
4
1555
14
3
12
V1 V2 V1 –- V2
8 12
9
245
1085 800
A2 D
7
468
F
6
10
6
5
Q.E.
3
13
14 1555
4 1522
12
8 12
9
245
A4
O
D
7
V1 - V2
V1 – with V2 condensing con modulogas heating termico module a gas
M
800
468
I
6
6
10 5
Q.E.
3
15
4
9
245
8
V3 V3
12
A3
1190
D
7
1555
1522
12
1600
468
G
6
10
6
5
Q.E.
3
13
15
1522
12
9
245
8
12
A5
1190
D
7
M
1600
L
6
34
10
6
468
1555
4
V3 con V3 with modulo condensing termico gas heating a gas module
TECHNICAL DATA AND PERFORMANCES Models 140.2 - 180.2 - 220.2 5 11 212,5
5
3 2
2345
VB
2132,5
2132
2345
4
3 1
1 4 39
8
9
39
6
365
A2 D E
7
6
285
6
55 106
150
A1 B 2200
55 106
6
10
11
5
3
13
4
VB with condensing gas heating module
2132
2345
VB CON MODULO TERMICO A GAS
3
13
4
9
365
8
A4
N
D
M
150
H 7
6
6
10 5
3
14
12
4
2132
2345
12
3
V1 - V2
12
4 9
8 12
3050
365
1085 800
3700
468
POS. 1 2 3 4 5 6 V1 - V2 7 8 9 10 11 12 13 14 15
LEGEND DESCRIPTION Refrigerant circuit inspection panel Electrical box inspection panel Internal fan inspection panel External coils External fans Lifting points Power supply holes Internal coils condensate drain Internal section condensate drain External section condensate drain Standard filters frame External air cap Gas heating module !"#$%&'!(&)*&+,"&)-&.!,/0(#.012%&.!,'13#(+01!,/ !"#$%&'!(&)4&.!,/0(#.012%&.!,'13#(+01!,
4500 7
6
A = Spring vibration dampers holes distance
6
10
5
3
13
14
12
4
2345
2132
3
13
12
V1 - V2 with condensing gas heating module
V1 - V2 CON MODULO TERMICO
12
4 9
8 12
1400
3935
365
1200
3700
800
468
5700 7
6
10
6
35
TECHNICAL DATA AND PERFORMANCES Minimum operating area The choice of the location of the unit is very important in order to guarantee the unit to work properly. Air flow obstructions, air circulation difficulties, leaves or other foreign materials that can clog the coils, winds that blow against or excessively favour the air flow, air stratification or ricirculation effects, nearby heat sources, are all causes of anomalous operating or shut downs of the unit caused by : 5&1,&.!!$1,3&6!"%&7&.!,"%,/1,3&8(%//#(%&1,.(%+/%&910:&8%('!(6+,.%/&$!//&+,"&8!//1;$%&:13:&8(%//#(%&+$+(6/; 5&1,&:%+01,3&6!"%&7&%2+8!(+01!,&8(%//#(%&"%.(%+/%&910:&1,.(%+/%"&,#6;%(&!'&"%'(!/01,3&.?!&'5!:;>? ! *14.((+2')!2*!4$"7$$'!=>?!&'5!:;>?!2'!.((+2')!&'5!4$"7$$'!:;>?!&'5!A;>?!2'!#$&"2') ! "#$!0+125!2'52.&"(%!2*!01++!&'5!5($*!'("!*#(7!"#$!/%$*$'.$!(0!#13252"C ! "#$!.(3/%$**(%!52*.#&%)$!"$3/$%&"1%$!2*!B;?!#2)#$%!"#&'!"#$!*&"1%&"2('!"$3/$%&"1%$!-5$7!/(2'"6!.(%%$*/('52')!"(! the condensation pressure N.B. The values given are only approximate and valid for units operating with all inlet air and temperatures close to nominal.
Aeraulic circuit Setting of the air flow in the inlet and outlet ducts must be carried out by a specialised technician equipped with suitable measurement instruments. STANDARD version The outlet air flow (coinciding with that of inlet) can be set by operating on the transmission of the internal centrifugal fan. Modify the opening of the expanding pulley fitted on the electric motor. If the design delivery cannot be obtained in this way, replace the fixed pulley, fitted on the fan, with one of a different diameter. E$%*2('!:!FGHIIJK The outlet air flow can be set as described for the standard version. I(!&5L1*"!"#$!2'+$"!&2%!0+(7M!3&'1&++C!&5L1*"!"#$!(/$'2')!(0!"#$!(1"*25$!&2%!*#1""$%!1'"2+!(4"&2'2')!"#$!5$*2)'!@&+1$9 Check the outlet air flow again and if necessary repeat the two setting operations until obtaining the required values for both deliveries. E$%*2('!A!&'5!B!FGHIIJKF! The outlet air flow can be set as described for the standard version. I(!&5L1*"!"#$!2'+$"!&2%!0+(7!3(520C!"#$!/&%&3$"$%!"#&"!5$02'$*!"#$!32'2313!(/$'2')!(0!"#$!(1"*25$!&2%!*#1""$%!1'"2+!(4"&2'2')!"#$! design value (during this phase make sure free-cooling is disabled by means of the parameter). Check the outlet air flow again and if necessary repeat the two setting operations until obtaining the required values for both deliveries. NOTE. The outlet air flow must always be higher than or equal to the inlet air flow for obtaining a correct intake of the outside air.
Electrical circuit Using a tester check that the current absorbed by the compressors and fans is less than the max. permissible values (FLA), indicated in the section “Technical data”.
48
CONTROL SYSTEM Control system
The unit is managed by a controller with microprocessor consisting of a card, inside the electrical panel, to which all the loads and control devices are connected and a user interface accessed by removing the electrical panel protection panel. A further interface can be connected to the card for remote control of the machine. Standard user interface All the units are supplied with a standard interface (EKP400 RT type keyboard) $N12//$5!72"#!"7(!41""('*!&'5!&!52*/+&C!-B?9 The status LEDs E indicate respectively : !! !
50
(00! )%$$'!
! !
&5L1*"3$'"!%$*(1%.$*!(00 &5L1*"3$'"!%$*(1%.$*!&."2@$
off green red
standby cooling heating
off green red
inside fan off inside fan active alarm status
CONTROL SYSTEM Main structure The menu of the control system has a tree structure based on four different levels. By scrolling the menu with the “mode” and “set” buttons it is possible to display and modify : ! ! ! ! !
*$"!/(2'" &'&+()1$!2'/1"*!-/%(4$*!0(%!"$3/$%&"1%$M!#13252"CM!?[A!\6 &."2@$!&+&%3* (/$%&"2')!/&%&3$"$%* #(1%*!(0!(/$%&"2('
Level 0
Level 1
Set point : SE
Level 2
t
Analogue inputs : t P
Alarms : E
rr
Level 3
Level 4
Set point Cooling : Co
o
Set point value
Set point Heating : HE
A
Set point value
Input AI1 … AI8 : t 0
... t 0 8
1
Input value
Active alarms codes
Probe value ST1
8 8 .8 o Active alarm code
Parameters : P
a r
E. .
Configuration : Cn F
Adjustment : r
Antifreeze : F
ss
Hours of operation : O
.
Parameter value
e
Parameter b
. .
Parameter value
ro
Parameter r
. .
Parameter value
Parameter L
. .
Parameter value
Free cooling : F
Password : P
Parameter H.
rC
Password value
Hr
Hours compressor 1 : O
H1
Hours compressor 2 : O
Hours internal fan : O
H3
Hp
Number of hours
Number of hours
Number of hours
To go from one level to that below, press the “mode” and “set” buttons at the same time. To go to the level above, keep the two buttons pressed for at least 2 seconds. To scroll the menu up and down, inside the same level, use the “mode” and “set” buttons respectively.
51
CONTROL SYSTEM
Inputs and outputs To monitor the unit, the controller is equipped with the following inputs and outputs : ! S'&+()1$!2'/1"*!Y!! ] ! ^2)2"&+!2'/1"*!Y! ! :: ! S'&+()1$!(1"/1"*!Y! B ! ^2)2"&+!(1"/1"*!Y! ! ] DESCRIPTION
CHARACTERISTICS Analogue inputs
AI1 AI2 AI3 AI4 AI5 AI6 AI7 AI8
ID1
ID2
ID3
ID4 ID5 ID6 ID7 ID8 ID9 ID10 ID11 TC1 AN1 TC2 AN2 AN3
STR STM SL1 STE CO2 SL2 SUR SUE PA1 TCP1 IEJ: PB1F PB1C SEQ PA2 TCP2 IEJA PB2F PB2C IET IEK PDF TBRE AMTG ECO EF ON-OFF E-I
Ts.b. probe inlet air Ts.b. probe outlet air fluid probe circuit 1 Ts.b. probe outside air CO2 probe fluid probe circuit 2 inlet air humidity probe outside air humidity probe
NTC temperature sensor (-30°C ¸ 90°C) NTC temperature sensor (-30°C ¸ 90°C) NTC temperature sensor (-30°C ¸ 90°C) NTC temperature sensor (-30°C ¸ 90°C) +2@$!2'/1"!!Y!;!_!=!E5. NTC temperature sensor (-30°C ¸ 90°C) input current : 4 ¸ 20 mA input current : 4 ¸ 20 mA
Digital inputs High pressure switch circuit 1 Compressor thermal cut-out 1 External fans thermal cut-out circuit 1 Low pressure switch circuit 1 - cooling Low pressure switch circuit 1 - heating Sequence meter High pressure switch circuit 2 Compressor thermal cut-out 2 External fans thermal cut-out circuit 2 Low pressure switch circuit 2 - cooling Low pressure switch circuit 2 - heating Internal fan thermal cut-out Inlet fan thermal cut-out Filters differential pressure switch Heaters thermal cut-out Gas-fired heating module alarm Economy mode Shutter forced opening Remote On-Off Remote Cooling- Heating Analogue outputs
EJ:
External fans circuit 1
EJA
External fans circuit 2
SR
Outside air shutter
voltage free digital input
voltage-free digital input
voltage-free digital input
voltage-free digital input voltage-free digital input voltage-free digital input voltage-free digital input voltage-free digital input voltage-free digital input voltage-free digital input voltage-free digital input output for external module (PWM) (1"/1"!0(%!$8"$%'&+!3(51+$!-;!`!:;!E5.6 output for external module (PWM) (1"/1"!0(%!$8"$%'&+!3(51+$!-;!`!:;!E5.6 @(+"&)$!(1"/1"!Y!;!`!:;!E5.
Digital outputs RL1 RL2 RL3 RL4 RL5 RL6 RL7 RL8
52
CP1 CP2 ET?: ET?A ET EK BRE MTG EBd ALL
compressor circuit 1 compressor circuit 2 Reverse cycle valve circuit 1 Reverse cycle valve circuit 2 Internal fan Inlet fan Heaters Gas-fired heating module Hot water 3-way valve Alarm
%$+&C*!=!S!%$*2*"2@$!AB;Ea!-:bD!#/!AB;Eac!:b]!#/!:A=Ea6 %$+&C*!=!S!%$*2*"2@$!AB;Ea!-:bD!#/!AB;Eac!:b]!#/!:A=Ea6 %$+&C*!=!S!%$*2*"2@$!AB;Ea!-:bD!#/!AB;Eac!:b]!#/!:A=Ea6 %$+&C*!=!S!%$*2*"2@$!AB;Ea!-:bD!#/!AB;Eac!:b]!#/!:A=Ea6 %$+&C*!=!S!%$*2*"2@$!AB;Ea!-:bD!#/!AB;Eac!:b]!#/!:A=Ea6 %$+&C*!=!S!%$*2*"2@$!AB;Ea!-:bD!#/!AB;Eac!:b]!#/!:A=Ea6 %$+&C*!=!S!%$*2*"2@$!AB;Ea!-:bD!#/!AB;Eac!:b]!#/!:A=Ea6 %$+&C*!=!S!%$*2*"2@$!AB;Ea!-:bD!#/!AB;Eac!:b]!#/!:A=Ea6
CONTROL SYSTEM
Controller technical data Description Power supply voltage * Power supply frequency Power Insulation class Protection degree Ambient operating temperature Ambient operating humidity (not condensing) Ambient storage temperature Ambient storage humidity (not condensing)
Typical :AM!;!Ea 50 Hz / 60 Hz ::!ES 1 Frontal IP0 25 °C 30 % 25 °C 30 %
Minimum :;M]!Ea -10 °C 10 % -20 °C 10 %
Maximum :BM!A!Ea 60 °C 90 % 85 °C 90 %
* The controller is powered by a proper insulated transformer. Alarms Alarm activation and reset The controller can carry out complete diagnostics on the machine, detecting all operating anomalies and signalling a number of alarms. Activation of an alarm involves : ! 4+(.,2')!(0!+(&5*!.('.$%'$5 ! 2'52.&"2('!(0!&+&%3!.(5$!(0!"#$!52*/+&C Alarms that can damage the unit or system require manual resetting or an intervention by the operator to reinstate the controller by pressing the “set” button. It is advisable to carefully check the cause of the alarm and make sure the problem has been eliminated before restarting the unit. Less critical alarms are automatic reset. As soon as the cause of the alarm has been eliminated the unit resumes working and the alarm code goes off the display. Some of these alarms become manual reset if the events per hour exceed a given limit.
Number of events per hour The count of events is provided for some alarms : if the number of events in the last hour has reached a limit, the alarm goes from automatic to manual reset. Alarm sampling occurs every 225 seconds. If an alarm is activated several times in a sampling period (225 seconds), it is counted only once. Example. If a number of events per hour equal to 3 is set, for the alarm to go from automatic to manual it must have a duration of between 2*225 seconds and 3*225 seconds.
Automatic Reset
Manual Reset
Alarm Count
Alarm sampling
Time
53
CONTROL SYSTEM
Alarm table
RL1 x
RL2 x
High pressure circuit 1Compressor thermal cut-out circuit 1External fans thermal cut-out circuit 1
M
ID1
x
E02
Low pressure circuit 1Sequence meter
AS (3)
ID2
x
E05 E06 E07
Outlet air low temperature Outlet air temperature probe fault Fluid probe fault circuit 1
AS (3) (2) A A
AI2 AI2 AI3
x x x
E21
High pressure circuit 2Compressor thermal cut-out circuit 2External fans thermal cut-out circuit 2
M
ID3
E22 E26 E27 E40 E41 E42
Low pressure circuit 2 CO2 probe fault Fluid probe fault circuit 2 Inlet air temperature probe fault Filters differential pressure switch Outside air temperature probe fault
AS (3) A A A M A
ID4 AI5 AI6 AI1 ID6 AI4
x x x x x
x x x x x x
x x x x x
x
x
x x x
x x x
E43
Internal fan thermal cut-out Inlet fan thermal cut-out
M
ID5
x
x
x
x
x
E46 E48 E49
Inlet air high temperature Inlet air humidity probe fault Outside air humidity probe fault
A A A
AI1 AI7 AI8
x
x
x
x
E63
Heaters thermal cut-outGas-fired heating module alarm
M
ID7
E01
RESET (1)
RL7 TC1 TC2 AN3 x x x x
x x x x
x x
x x x
x
x
x x x
x x
x
x
(1) A = automatic reset , M = manual reset , AS (x) = automatic until reaching x events per hour, then manual (2) Manual reset can also be carried out by means of remote On-Off (ID10) or remote Cooling-Heating (ID11)
54
Outdoor air damper
RL2 ID10
ALARM Remote ON-OFF
External fans circuit 2
Electrical heater coil Gas heating module RL6 x
A
CODE E00
External fans circuit 1
Internal fan - Return air fan RL5 x
Hot water coil 3 way valve
Reverse cycle valve circuit 2 RL4
Compressor circuit 2
RL3
Compressor circuit 1
Reverse cycle valve circuit 1
Loads BLOCKED
x x x x x
x x x x x x
x
x
x x x x
CONTROL SYSTEM Alarm diagnostics Intervention of a safety device indicates an operation fault. Before resetting the alarm it is necessary to carry out a check and eliminate the cause of the alarm. Given below is a list of possible problems and causes, as a troubleshooting guide for some faults that could occur in the unit. The list does not cover all possible faults. ALARM
E00
CAUSE
POSSIBLE ACTION OR CHECK
1. remote ON-OFF digital input open. 1. If using the remote ON-OFF control, close the selector connected to 2. No bridge between the remote ON-OFF control the corresponding digital input or check the programmer clock setdigital input terminals. tings. A9! T0!'("!1*2')!"#$!%$3("$![U! AB87
EXP :
indicates the exponent of the power of 10 to multiply by the register value to obtain the resource value.
5! 5!
&(?*+'(&!2#1$(! &(?*+'(&!2#1$(!
@! @!
EXP -2 -1 0 1 2
MU :
AB878! 7CCAC!
)! )!
&(+,$&3(!2#1$(!5!&(?*+'(&!2#1$( &(+,$&3(!2#1$(!5!&(?*+'(&!2#1$(!D!7CCA7
Multiplier 10-2 10-1 100 101 102
0,01 0,1 1 10 100
indicates the unit of measure of the resource
IMPORTANT. DO NOT modify any parameter not indicated in the tables provided or indicated as a read-only parameter (R), otherwise the warranty will be invalidated.
60
CONTROL SYSTEM
Label -
H10 H49 H67 H68 b01 b02 r07 r08 r13 r15 r16 L01 L07 L19 L23 L24 L25 L26 t01 t02 t03 t04 t05 t06 t07 t08 -
Description Cooling set point Heating set point Enable heat pump Operating mode selection configuration Family serial address Device serial address Automatic operating mode hysteresis in cooling Automatic operating mode hysteresis in heating Antifreeze heaters set point in heating Antifreeze heaters set point in cooling Heat pump shut-down set point Enable heaters in heating Enable heaters in dehumidification Enable free cooling Shutter min. opening Dehumidification set point “Night purging” duration “Night purging” set point “Economy” mode differential Shutter min. opening CO2 set point Inlet air temperature probe (STR) Outlet air temperature probe (STM) Fluid probe circuit 1 (SL1) Outside air temperature probe (STE) CO2 probe (CO2) Fluid probe circuit 2 (SL2) Inlet air humidity probe (SUR) Outside air humidity probe (SUE) Shutter opening COOLING mode activated * HEATING mode activated * Unit status ( 1 = ON ; 0 = OFF ) Alarm E00 Allarm E02 Allarm E05 Allarm E06 Allarm E07 Allarm E22 Allarm E26 Allarm E27 Allarm E40 Allarm E42 Allarm E46 Allarm E48 Allarm E49 Allarm E01 - manual reset Allarm E02 - manual reset Allarm E05 - manual reset Allarm E21 - manual reset Allarm E22 - manual reset Allarm E41 - manual reset Allarm E43 - manual reset Allarm E63 - manual reset
RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW R R R R R R R R R RW RW RW R R R R R R R R R R R R R R R R R R R R R
Register address
Dec 2049 2050 2060 2099 2117 2118 2168 2169 2210 2211 2216 2218 2219 2252 2258 2270 2274 2275 2276 2277 4097 4098 4099 4100 4101 4102 4103 4104 14339 16525 16525 16525 17089 17089 17089 17089 17089 17089 17089 17089 17091 17091 17091 17091 17091 17093 17093 17093 17093 17093 17095 17095 17095
Hex 0801 0802 080C 0833 0845 0846 0878 0879 08A2 08A3 08A8 08AA 08AB 08CC 08D2 08DE 08E2 08E3 08E4 08E5 1001 1002 1003 1004 1005 1006 1007 1008 3803 408D 408D 408D 42C1 42C1 42C1 42C1 42C1 42C1 42C1 42C1 42C3 42C3 42C3 42C3 42C3 42C5 42C5 42C5 42C5 42C5 42C7 42C7 42C7
Bit number
Lsb
CPL
EXP
UM
16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 9 15 8 10 13 14 15 2 5 6 8 10 12 13 14 9 10 13 1 2 9 6 2
Y Y N N N N N N Y Y Y N N N N N N Y Y N Y Y Y Y Y Y Y Y N N N N N N N N N N N N N N N N N N N N N N N N N
-1 -1 0 0 0 0 -1 -1 0 0 0 0 0 0 0 0 1 0 -1 0 -1 -1 -1 -1 1 -1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
°C °C °C °C °C °C °C % % min °C °C % °C °C °C °C ppm °C % % % -
* If both operating modes are enabled by mistake the unit switches to OFF status.
61
MAINTENANCE Maintenace IMPORTANT. BEFORE CARRYING OUT ANY CLEANING OR MAINTENANCE OPERATIONS ON THE UNIT MAKE SURE E6F! GHIFJ! KL! 4KLMHNNFMEF4O!PNQ! JHREKNF! HJ! FSEJPHJ4KNPJQ! TPKNEFNPNMF! HGFJPEKHNL! UKVFN! WFXHI! MUST BE CARRIED OUT BY SPECIALISED AND AUTHORISED PERSONNEL IN ORDER TO ENSURE COMPLIANCE WITH THE CURRENT SAFETY REGULATIONS. This section is extremely important for lasting efficiency of the unit. Just a few operations performed periodically can prevent having to resort to interventions by specialised personnel. The operations to be carried out do not require particular technical knowledge and consist of simple checks of the unit's components. Heat exchangers Accidental contact with the exchanger fins can cause small cuts. Use special gloves to carry out the operations described below. The exchangers must be able to ensure maximum heat exchange, therefore their surfaces must always be free of dirt or dust which could form on them due to the action of the fans. Use a brush to remove all the impurities deposited on the surface of the (93Y#Z?(&O!R+(!#!3,0-&(++(%!#*&![('!',!31(#Z!'Y(!#1$0*Z*$0!+$&/#3(!,/!'Y(!(93Y#Z?(&\!0#]*Z?!+$&(!',!]((-!'Y(![('!-# (1!',!'Y(! direction of the fins so as to avoid possible damage. If the aluminium fins have been bent, "comb" the exchanger with a special tool to eliminate any damage. External fans Before every seasonal start-up, check the fixing of the fans and respective grilles to the vibration-damping mounts and that these are properly secured to the structure of the unit. Insofar as possible, check any unbalance in the electric axial fan indicated by anomalous vibrations and noise. Structure To prevent possible anomalous vibrations and noise, make sure the various steel parts are secured and that the various inspection panels are properly fixed to the unit by means of the special ¼ turn closures. In case oxidation, treat the relevant parts of the unit with paints suitable for eliminating or reducing the problem. Periodical cleaning of all the internal metal surfaces in contact with the treated air is also advisable to limit the risk of Legionella. Electrical part Make sure there are no cuts, cracks or alternations on the power cable connecting the unit to the distribution board, that could compromise its insulation. Contact an authorised assistance centre if maintenance is necessary. Carefully check the tightness of all the electrical connections after an initial period of operation from first start-up and at every seasonal start-up or stop. Air ducts Make sure the fixing screws of the air ducts and the relevant structures are not loose. Loose screws are the source of vibrations and therefore noise. Check any vibration-damping systems installed on the air ducts to prevent the transmission of vibrations. Internal exchanger condensate discharges It is advisable to periodically check the state of the condensate drain tray and connections of the direct expansion coil and the collection tray and union present with the optional drip separator or the water coil. Dirt or deposits could give rise to dangerous clogging. Periodical cleaning of all these components in contact with the treated air is also advisable. External exchanger condensate discharges In winter operation, defrosting of the external exchanger through reversing the refrigerating cycle occurs periodically. During this phase make sure the water dripping from the finned pack can flow down regularly under the level of the machine and in particular that the drain union, fitted standard on all units, is not blocked. If the downflow is not correct, with particularly rigid temperatures a layer of ice could form over the base and compromise operation of the entire system. Water coil (optional) In the winter period always empty the water present in the finned-pack exchanger, when not used, by means of the special drain valves located at the bottom of the manifold and the exchanger itself. This operation prevents ice forming with consequent breakage in case of particularly low outside temperatures.
62
MAINTENANCE Air filters Checking the filters is considered routine maintenance to be carried out according to the place where the unit is installed. It is advisable to carry out this operation weekly in particularly dusty places. All the units are fitted standard with pleated filter cells (G4 filtering class according to EN 779) having standard dimensions in order to be available from any manufacturer or dealer. For greater safety it is advisable to install, as an accessory, the differential pressure switch for indicating dirty filters. The filter section in the unit differs for its position in the respective construction configurations. ! KZ!'Y(!+'#Z%#&%!3,Z/*?$&#'*,Z!^VW_!'Y(!/*1'(&!+(3'*,Z!*+!1,3#'(%!,Z!'Y(!,$'+*%(!,/!'Y(!$Z*'\!+$*'#"1.!*Z+(&'(%!*Z!#!+-(3*#1!/�(! applied on the inlet. To clean the filters, proceed according to the instructions given below. 1. Remove the prefilter frame closing side panel by loosening the special knurled wheels. 2. Remove the filters positioned on special guides. 3. Wash the filtering mat in lukewarm water and a normal detergent. 4. Rinse thoroughly under running water. 5. Dry the filtering baffles thoroughly and refit them in the special seats. 7O! R+(!#!+3&(=%&*2(&!',!1,,+(Z!'Y(!+(1/`'#--*Z?!+3&(=+![,*Z*Z?!'Y(!$--(&!/*1'(&*Z?!3(11!',!'Y(!1,=(&\!*/!&(-1#3(0(Z'!*+!Z(3(++#&.O ! KZ!'Y(!,'Y(&!3,Z+'&$3'*,Z!3,Z/*?$&#'*,Z+!#2#*1#"1(!'Y(!/*1'(&!+(3'*,Z!*+!1,3#'(%!*Z+*%(!'Y(!$Z*'\!*Z!'Y(!#*&!0*9*Z?!3Y#0"(&!,/! the additional module. For access and normal cleaning, remove the relevant foam panel. 1. Remove the filter inspection foam panel by undoing the closures a ¼ turn with the special triangular wrench provided. 2. Remove the standard filters positioned on special guides. Make sure to periodically check the state of the G4 pleated cells and carry out cleaning as described above or replacement when necessary. These operations are all-important also for better filtering efficiency of any rigid pocket filters present, and to increase the time intervals between replacing. 3. Check the state of any rigid pocket filters present and replace whenever necessary, using a screwdriver to loosen the self'#--*Z?!+3&(=+![,*Z*Z?!'Y(!$--(&!/*1'(&*Z?!3(11!',!'Y(!1,=(&!=*'Y!+-(3*#1!&(+'&#*Z'!?$*%(+O! 4. Fit the filter inspection panel in its seat before starting the unit. Transmission To meet most installation needs the double suction centrifugal fans fitted on the unit are coupled to electric motors with a transmission system consisting of a belt, electric motor, fixed fan pulley and expanding motor pulley. All the components, sized for reliability and low maintenance, in any case require periodical checking in order to avoid possible extraordinary maintenance. Belts Check the alignment of the belts with the motor and fan pulleys. For the expanding pulleys always refer to the centre of the grooves and not the edge of the pulleys. Loosen the bolts fixing the motor feet and move them along the slots in the slide until obtaining correct alignment. If the ends of the slots are reached, also shift the slide along the fixing supports. Make sure the belt has not lifted and that it does not touch the bottom of the pulley grooves and, whenever two are provided for, that their lengths are equal. Check correct belt tension. Insufficient tension causes slipping, with consequent overheating and a significant shortening of its useful life. HZ!'Y(!,'Y(&!Y#Z%\!(93(++*2(!'(Z+*,Z!+$"[(3'+!'Y(!"(1'!',!?&(#'(&!+'&(++(+!'Y#Z!'Y,+(!-(&0*++*"1(\!=*'Y!3,Z+(a$(Z'!&(%$3'*,Z!*Z! its life, excessive strain on the supports and a reduction in bearing operation hours. Belt tension can be varied by means of the worm screw of the slide, on which the electric motor is positioned, using a socket wrench or spanner. If specific instruments are not available for measuring the tension of the belts, the following approximate method can be used. Measure the free section L, for each belt. Using a torque wrench, apply a perpendicular force F in the middle of L able to cause a deflection D of 1.5 mm for every 100 mm of length L. Make sure the applied force F is approx. 35-40 N. ! ! !
X! d! 4!
! ! !
5!-$11(.!3(Z'&(!%*+'#Z3(! 5!/,&3(! ! ! 5!(1#+'*3!%(2*#'*,Z!! D = L x 0.015
b00c bNc b00c
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MAINTENANCE Pulleys Avoid the conditions listed below, which could cause early wear of the pulleys (fixed or expanding). ! 1#3]!,/!#1*?Z0(Z'\!1#3]!,/!-# (1*+0\!"&(#]#?(\!Y*?Y!=(#&!#Z%!1#3]!,/!(33(Z'&*3*'. ! %$+'\!?&(#+(\!%*&'!#Z%!#1+,!#!Y*?Y!1(2(1!,/!Y$0*%*'.!=Y*3Y!=,$1%!3#$+(!'Y(!/,&0#'*,Z!,/!3,Z%(Z+#'(O!EY(+(!+$"+'#Z3(+! depositing between the surfaces of the belt and those of the pulley can cause the system to work in anomalous conditions. W(/,&(!#%[$+'*Z?!'Y(!-$11(.\!0(#+$&(!'Y(!#3'$#1!=,&]!&,11*Z?!-*'3Y!%*#0('(&!#Z%!%('(&0*Z(!'Y(!&(a$*&(%!%*#0('(&\!'Y(Z!&(0,2(! the belt. For single-groove pulleys, loosen the locking screw of the movable disk and turn it on the threaded hub, checking the obtaining of the required rolling pitch diameter with the belt. Lightly oil the thread in case of sliding difficulty. Tighten the screws evenly, checking the alignment of the transmission, refit the belt and correctly tighten it. For pulleys with two grooves, proceed in the same way, carefully checking (measuring the opening with a gauge and measuring the work diameter of the belt) that the ?&,,2(+!#&(!(a$#11.!#%[$+'(%O Periodically check groove wear. The working life of the pulleys mainly depends on correct performance of the belt tensioning and transmission alignment operations. After a certain period of operation the wear will in any case alter the geometric characteristics of the grooves (generally more pronounced in pulleys of smaller diameter) along with reduced life of the belts. In this case it is necessary to replace the most altered pulley or the entire transmission. For pulleys with taper-lock bushing, replacement is carried out as indicated in the following figure.
1. To release, remove the two screws, insert a screw in the extraction hole and tighten so that it becomes released.
2. Fit the bush on the shaft.
3. Fit the pulley on the bush.
4. Fit the screws and secure.
The shaft and taper fit must be cleaned but not greased. Oil the screws and tighten them evenly and alternately. To remove the pulleys without bushing, it is necessary to remove the fixing, consisting of : ! U&$"!+3&(=!,Z!'Y&(#%(%!Y,1(!*Z!'Y(!Y$"\!/,&!'Y(!-$11(.+!*Z+'#11(%!,Z!/#Z+O ! L3&(=!#Z%!=#+Y(&!,&!3#-\!,Z!'Y&(#%(%!Y,1(!*Z!'Y(!+Y#/'\!/,&!'Y(!-$11(.+!*Z+'#11(%!,Z!0,',&+O Carefully clean the shaft before fitting the new pulley. If the new pulleys are not supplied by us, make sure they are statically and dynamically balanced. Electric motor Regular cleaning of the electric motor ensures a longer life, since it increases the ability of the housing to dissipate the heat generated. The cooling air slots must always be kept free. Inspection and maintenance intervals depend on operating and environmental conditions. Bearings in good condition indicate low friction values and thus electrical absorption kept within the necessary minimum values, to the advantage of motor life. The basic theoretical fatigue life L10h (in conformity with standard ISO 281/1 for bearings without additional axial radial loads) is over 50,000 hours. Those supplied are prelubricated double-shielded type. A periodical check for any noise or possible whirring can reduce the need for maintenance operations. When ordering replacement parts, specify the code and type of motor indicated on the plate. The standardised components are available at all specialised dealers. Internal and return air fan Regular general fan cleaning will ensure an optimum passage of air and therefore high efficiency. Bearings in good condition indicate low friction values, thus contributing to limiting electrical absorption, to the advantage of the electric motor, while also reducing the possibility of excessive wear of the drive belt. The bearings of all the fans are chosen according to type and size to guarantee a life L10h = 40,000 hours of work with reference to standard ISO 281/1. This value was calculated in the most unfavourable load conditions for the bearing, i.e. considering the max. permissible radial load. In the operating conditions in which the fans are generally used, the average life is much longer. Seasonally, before starting the unit, check the fixing of the fans to the unit's structure. Also make sure the fan wheel is perfectly straight and that it has not undergone dangerous unbalancing causing anomalous vibrations and noise.
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SAFETY AND POLLUTION General considerations Accessing the unit The access to the unit must be granted exclusively to qualified personnel trained to operate on this type of units and provided with the necessary protection equipment. Moreover such personnel, to operate, must be authorized by the owner of the unit and recognized by the Manufacturer. Residual risks The unit are designed and built in such a way to minimize risks for people and for the place where the unit is installed. The residual risks, impossible to eliminate during the design process, are reported in the following table along with the indications necessary for their neutralization. Considered part
Residual risk
Mode
Precautions
Compressor
Burns
Contact
Use protective gloves
Refrigerant circuit pipes
Burns
Contact
Use protective gloves
Cold burns
Fuoriuscita di refrigerante e Use protective gloves contatto con la pelle
Electrical circuit
Electrocutions
Contact with live parts
V(&*/.!'Y(!$Z*'!(#&'Y!3,ZZ(3'*,Z Disconnect the power supply line before carrying out any operation inside the unit
Finned coil
Cuts
Contact
Use protective gloves
Pollution The unit contains refrigerant gas and lubricating oil. During discarding such fluids must be recovered and eliminated according to the regulations in force in the country where the unit is installed. The unit must not be abandoned during discarding. Refrigerant safety card 1 SUPPLIER COMPANY AND PRODUCT IDENTIFICATION Card No. FRIG 8 Product R-410A L$--1*(&!3,0-#Z.!*%(Z'*/*3#'*,Z! JKVHKJP!L-P 2 COMPOSITION / INFORMATION ON INGREDIENTS Substance / Preparation Preparation Components / Impurities Contains the following components : Difluoromethane (R32) 50 % in weight Pentafluoroethane (R125) 50 % in weight EEC No. Non-applicable for mixtures Trade-name / / 3 IDENTIFICATION OF HAZARDS Identification of hazards Liquefied gas. The vapours are heavier than air and can cause suffocation, reducing the oxygen available for breathing. Rapid evaporation of the fluid can cause freezing. Can cause cardiac arrhythmia. 4 FIRST-AID MEASURES Inhalation Do not administer anything if the person has fainted. Take the person outdoors. Use oxygen or artificial respiration if necessary. Do not administer adrenaline or similar substances. Contact with eyes Rinse thoroughly with plenty of water for at least 15 minutes and see a doctor. Contact with skin Wash immediately with plenty of water. Immediately remove all contaminated garments. Swallowing 5 FIRE-PREVENTION MEASURES Specific hazards Increase in pressure. Dangerous fumes Halogen acids, traces of carbonyl halides. Fire-extinguishing means usable All the known fire-extinguishing means can be used. Specific methods Cool the containers/tanks with water sprays. Special protection equipment Use self-contained breathing apparatus in confined spaces. 6 MEASURES AGAINST ACCIDENTAL SPILLING OF THE PRODUCT Personal protection Evacuate personnel to safe areas. Provide for adequate ventilation. Use personal protection equipment Protection for the environment It evaporates. Product removal methods It evaporates. 7 HANDLING AND STORAGE Handling and storage Ensure an adequate air change and/or extraction in the workplaces. Only use well-ventilated rooms. Do not breathe vapours or aerosols. Carefully close the containers and keep them in a cool, dry and well-ventilated place. Keep in the original containers. Incompatible products Explosives, flammable materials, organic peroxides. 8 CONTROL OF EXPOSURE / PERSONAL PROTECTION Personal protection Ensure adequate ventilation, especially in closed areas. Control parameters Difluoromethane (R32): Recommended exposure limits: AEL (8h and 12h TWA) = 1000 ml/m3 Pentafluoroethane (R125): Recommended exposure limits: AEL (8h and 12h TWA) = 1000 ml/m3
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SAFETY AND POLLUTION Respiratory tract protection Eye protection Hand protection Hygiene measures 9 CHEMICAL-PHYSICAL PROPERTIES Relative density, gas (air=1) Solubility in water (mg/l) Appearance Odour Fire point 10 STABILITY AND REACTIVITY Stability and reactivity Materials to be avoided Hazardous products of decomposition 11 TOXICOLOGICAL INFORMATION X,3#1!(//(3'+! Long-term toxicity Specific effects 12 ECOLOGICAL INFORMATION Effects linked to ecotoxicity
13 CONSIDERATIONS ON DISPOSAL General
14 INFORMATION FOR TRANSPORT Designation for transport UN No. Class/Div ADR /RID No. ADR/RID hazard no. ADR label CEFIC Groupcard Other information for transport
For rescue and for maintenance works in tanks, use self-contained breathing apparatus. The vapours are heavier than air and can cause suffocation, reducing the oxygen available for breathing. Total protection glasses. Rubber gloves. Do not smoke. Heavier than air. Not known, but deemed very low. Colourless liquefied gas. Similar to ether. Does not ignite. No decomposition if used according to the special instructions. Alkali metals, alkali-earth metals, granulated metal salts, Al, Zn, Be, etc. in powder. Halogen acids, traces of carbonyl halides. M,Z3(Z'&#'*,Z+! +$"+'#Z'*#11.! #",2(! 'Y(! 2#1$(! EXV! ^:>>>! --0_! 3#Z! 3#$+(! Z#&3,'*3! (//(3'+O! KZhalation of highly concentrated products of decomposition can cause respiratory insufficiency (pulmonary oedema). No carcinogenic, teratogenic or mutagenic effects have been recorded in experiments on animals. Rapid evaporation of the fluid can cause freezing. Can cause cardiac arrhythmia. Pentafluoroethane (R125) Potential global warming with halocarbides; HGWP (R-11 = 1) = 0.84 Potential impoverishment of the ozone; ODP (R-11 = 1) = 0 Do not dispose of where accumulation can be hazardous. Usable with reconditioning. The depressurised containers must be returned to the supplier. Contact the supplier if instructions for use are deemed necessary. LIQUEFIED GAS N.A.S. ( DIFLUOROMETHANE, PENTAFLUOROETHANE ) 3163 2.2 2, 2nd A 20 Label 2 : non-toxic non-flammable gas. 20g39 - A Avoid transport on vehicles where the loading zone is not separate from the cab. Make sure the driver is informed about the potential risk of the load and knows what to do in case
of accident or emergency. Before starting transport, make sure the load is properly secured and : make sure the valve of the container is closed and does not leak; make sure the blind cap of the valve (when provided) is correctly fitted; make sure the cap (when provided) is correctly fitted and that there is an adequate ventilation passage; ensure compliance with the current provisions. 15 INFORMATION ON REGULATIONS The product must not be labelled according to Directive 1999/45/EC. Comply with the regulations given below, and the relevant applicable updates and amendments. Circulars no. 46/79 and 61/81 of the Ministry of Labour : Risks related to the use of products containing aromatic amines Leg. Decree no. 133/92 : Regulations on the discharge of hazardous substances in waters Leg. Decree no. 277/91 : Protection of workers against noise, lead and asbestos Law 256/74, Decree 28/1/92, Leg. Decree no. 52 dated 3/2/97, Decree dated 28/4/97 as amended : Classification, packing and labelling of hazardous substances and preparations Decree no. 175/88, as amended : Activities with significant accident risks (Seveso Law) Decree no. 203/88 : Emissions into the atmosphere Decree no. 303/56 : Work hygiene Decree no. 547/55 : Regulations on accident prevention Leg. Decree no.152 dated 11/5/99 : Protection of waters 16 OTHER INFORMATION Recommended uses Refrigerant Can cause suffocation in high concentration. Keep in a well-ventilated place. Do not breathe the gas. The risk of suffocation is often underestimated and must be clearly explained during the training of operators. Ensure compliance with all the national and regional regulations. Before using this product in any new process or trial, an in-depth study on safety and compatibility of the product with the materials must be carried out. The above information is based on our current know-how and describes the product according to the safety requirements. It does not however represent a guarantee and assurance of the qualities in a legal sense. Each person responds personally for compliance with such regulations. The manufacturer declines all the responsabilities regarding inaccuracies contained in this manual, if due to printing or typing mistakes. The manufacturer reserves the right to apply changes and improvements to the products at any time and without notice.
66
67
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