PREMIER E SERIES DUAL CAPACITY INSTALLATION AND MAINTENANCE MANUAL
23
4)
If control responds improperly:
•
Ensure that component being controlled is functioning (Compressor, Blower, Reversing
valve, etc.).
•
Ensure that wiring from control to the component is functioning (use the diagnostic
outputs mode).
•
If steps above check properly, replace unit control.
NOTE:
Refer to the wiring schematic on pages 14-15 for additional information.
REFRIGERANT SYSTEM
NOTE:
Verify that air and water flow rates are at proper levels before servicing the
refrigerant circuit.
To maintain sealed circuit integrity, do not install service gauges unless unit operation appears
abnormal (refer to the unit operating pressures and temperatures table below). If superheat and
subcooling are outside recommended ranges, an adjustment to the refrigerant charge may
be necessary.
OBTAINING PARTS
When contacting WFI for service or replacement parts, refer to the model number and serial
number of the unit as stamped on the serial plate attached to the unit. If replacement parts are
required, mention the date of installation of the unit and the date of failure, along with an explanation
of the malfunctions and a description of the replacement parts required.
IN-WARRANTY MATERIAL RETURN
Material may not be returned except by permission of authorized WFI warranty personnel. Contact
your local distributor or the WFI warranty department for warranty return authorization and assistance.
Unit Operating
Pressures*
Two cylinder operation
Cooling - No Desuperheater**
Heating - No Desuperheater
Entering
Water
Suction
Discharge
Water
Air
Suction
Discharge*
Water
Air
Water
Flow
Pressure
Pressure
Super-
Sub-
Temp
Temp
Pressure
Pressure
Super-
Sub-
Temp
Temp
Temp
°
F
GPM/TON
PSIG
PSIG
heat
cooling
Rise
°
F
Drop
°
F DB
PSIG
PSIG
heat
cooling
Drop
°
F DB
Rise
°
F
30
1.5
-
-
-
-
-
-
64-72
285-320
11-16
13-19
5-7
15-21
3.0
-
-
-
-
-
-
68-76
290-325
11-16
13-19
3-5
17-23
50
1.5
117-123
225-240
14-20
10-16
20-24
21-25
91-104
320-355
9-14
18-24
6-8
22-28
3.0
115-121
195-215
14-20
10-16
10-14
21-25
95-108
325-360
9-14
18-24
4-6
24-30
70
1.5
124-132
290-310
12-16
10-16
19-23
20-24
131-146
365-400
8-13
18-24
9-11
30-36
3.0
122-130
260-280
12-16
10-16
9-13
20-24
135-150
370-405
8-13
18-24
7-9
32-38
90
1.5
132-140
380-410
10-14
10-16
18-22
18-22
-
-
-
-
-
-
3.0
130-138
350-380
10-14
10-16
8-12
18-22
-
-
-
-
-
-
*Deduct 10# psig for E036
One cylinder operation
Cooling - No Desuperheater**
Heating - No Desuperheater
Entering
Water
Suction
Discharge
Water
Air
Suction
Discharge*
Water
Air
Water
Flow
Pressure
Pressure
Super-
Sub-
Temp
Temp
Pressure
Pressure
Super-
Sub-
Temp
Temp
Temp
°
F
GPM/TON
PSIG
PSIG
heat
cooling
Rise
°
F
Drop
°
F DB
PSIG
PSIG
heat
cooling
Drop
°
F DB
Rise
°
F
30
1.5
-
-
-
-
-
-
76-84
269-282
8-12
2-8
4-6
12-16
3.0
-
-
-
-
-
-
80-88
274-287
8-12
2-8
2-4
14-18
50
1.5
134-144
195-203
14-20
12-18
21-25
21-25
112-120
295-315
8-12
2-10
6-8
18-22
3.0
132-142
180-186
14-20
12-18
10-15
21-25
116-124
300-320
8-12
2-10
4-6
20-24
70
1.5
142-150
257-264
12-16
12-18
20-24
20-24
156-166
325-350
8-12
4-12
7-9
26-30
3.0
140-148
242-249
12-16
12-18
9-13
20-24
160-170
330-355
8-12
4-12
5-7
28-32
90
1.5
148-155
335-345
10-14
12-18
18-22
18-22
-
-
-
-
-
-
3.0
146-153
320-330
10-14
12-18
8-12
18-22
-
-
-
-
-
-
*Deduct 25# psig for E036
Replacement
Procedures