McQuay WCA036 User Manual
McQuay Water to Water Source Heat Pumps Catalog 1107
Model WRA, WHA, WCA
Unit Sizes 036 – 420 • R-410A Refrigerant
Engineered for exibility and performance™
Contents
Nomenclature.....................................................................3
WRA, WHA, WCA
Electrical Data ....................................................................5
Capacity Data ................................................................6-27
WRA, WCA – Size 036 Cooling ..................................... 6
WRA, WHA – Size 036 Heating ..................................... 7
WRA, WCA – Size 048 Cooling ..................................... 8
WRA, WHA – Size 048 Heating ..................................... 9
WRA, WCA – Size 060 Cooling ................................... 10
WRA, WHA – Size 048 Heating ................................... 11
WRA, WCA – Size 072 Cooling ................................... 12
WRA, WHA – Size 072 Heating ................................... 13
WRA, WCA – Size 120 Cooling ................................... 14
WRA, WHA – Size 120 Heating ................................... 15
WRA, WCA – Size 150 Cooling ................................... 16
WRA, WHA – Size 150 Heating ................................... 17
WRA, WCA – Size 180 Cooling ................................... 18
WRA, WHA – Size 180 Heating ................................... 19
WRA, WCA – Size 240 Cooling ................................... 20
WRA, WHA – Size 240 Heating ................................... 21
WRA, WCA – Size 300 Cooling ................................... 22
WRA, WHA – Size 300 Heating ................................... 23
WRA, WCA – Size 360 Cooling ................................... 24
WRA, WHA – Size 360 Heating ................................... 25
WRA, WCA – Size 420 Cooling ................................... 26
WRA, WHA – Size 420 Heating ................................... 27
Design Features
.....................................4
WRA, WCA, WHA Physical Data ....................................28
WRA, WCA, WHA Correction Factors ............................28
Dimensional Data .......................................................29-31
WRA, WCA, WHA – Size 036–072 .............................. 29
WRA, WCA, WHA – Size 120–38 ................................ 30
WRA, WCA, WHA – Size 240–420 .............................. 31
Engineering Guide Specications ................................. 32
“McQuay” is a registered trademark of McQuay International.
©McQuay International 2010. All rights reserved throughout the world.
The information in this catalog supersedes and replaces previous catalogs with regard to McQuay Terminal Air Conditioning products. Illustrations cover the general ap-
pearance of McQuay products at the time of publication and McQuay reserves the right to make changes in design and construction at anytime without notice.
Page 2 of 32 CAT 1107
McQuay R-410A Water to Water Source Heat Pumps
McQuay WSHP Product Model Nomenclature
W WRA 1 036 E F T F YY FS A C Y A PVM
Product Category
W = WSHP
Product Identier
WRA = Heating and Cooling Models
WHA = Heating Only Models
WCA = Cooling Only Models
Design Series
1 = 1st Design
2 = 2nd Design
3 = 3rd Design
4 = 4th Design
Nominal Capacity
036 = 36,000 Btuh Nominal Cooling
048 = 48,000 Btuh Nominal Cooling
060 = 60,000 Btuh Nominal Cooling
072 = 72,000 Btuh Nominal Cooling
120 = 120,000 Btuh Nominal Cooling
150 = 150,000 Btuh Nominal Cooling
180 = 180,000 Btuh Nominal Cooling
240 = 240,000 Btuh Nominal Cooling
300 = 300,000 Btuh Nominal Cooling
360 = 360,000 Btuh Nominal Cooling
420 = 420,000 Btuh Nominal Cooling
Controls
E = Electromechanical
T = Temperature
Control System
Voltage
E = 208-230/60/1
F = 208-230/60/3
K = 460/60/3
L = 575/60/3
Source Water to Refrigerant
Heat Exchanger Construction
C = Copper Inner Tube Steel Outer Tube
S = Cupro-Nickel Inner Tube Steel Outer Tube
Y = None
Construction Type
A = Standard
Refrigerant
A = R-410A
Desuperheater
Y = None
D = Waste Heat Recovery
Water Heater
Cabinet Electrical
YYY = None
PVM = Phase Monitor
Monitors Voltage
and Phase Loss
Water Piping Location
F = Front
T = Top
L = Left Hand Side
R = Right Hand Side
Status Lights
YY = None
SL = Three Lights-Compressor-1,
Compressor-2, Compressor fault
Control Box Location
F = Front
L = Left Side Control Box
R = Right Side Control Box
NOTE: For illustration purposes only. Not all options available with all models.
PleaseconsultyourlocalMcQuayRepresentativeforspecicavailability.
Freezestat
YY = None
FS = Adjustable for Geothermal and
Boiler/Tower Application
Model WRA
CAT 1107 Page 3 of 32
Design Features
Model WRA, WHA, WCA
R-410A High Efciency Water to Water Source Heat Pumps
Model WRA - Heating and Cooling Unit – 60Hz
Standard Design Features:
■ PaintFinishmeetsorexceeds1,000hourSalt
Spray Test per ASTM B117 97.
■ 1/2"high-densityberglassinsulationforthermal
and sound insulation.
■ Serviceconnections
factory installed in
compressor suction
and discharge lines for
ease of servicing.
■ Bi-owThermal
ExpansionValve(TXV)
for precise metering of
refrigerantowunder
all expected
operating conditions.
■ Highefciencycoaxial
water-to-refrigerant
coils, fully insulated
with polyurethane
foam to maximize
performance while helping to prevent condensate
build-up in unit base pan.
■ Highpressureandlowpressureequipment
protection built into the source side refrigeration
circuit to guard against abnormal unit operation.
■ Fullyinsulatedrefrigerantandwaterlinesto
help prevent condensation from collecting in the
unit base.
■ Highefciencyscrollcompressors
Optional Features:
■ TemperatureControlSystem(sizes120through
420) – Controls return water temperature and has
aseparatesetpointforheatingandcooling(1–2
stages).Requiresaeldsuppliedsignalfor
heat/cool changeover.
■ AdjustableFreezestatforgeothermalandboiler
tower applications.
Senses leaving water on the source side and will
shut down the unit if below setpoint.
■ ThreeLightStatusPanel(sizes120through420)–
Compressor 1 “ON”, compressor 2 “ON” and
“compressor fault” lights located outside unit.
■ SourceSideCoaxialWaterCoil–Singlewall
cupro-nickel inner tube coaxial heat exchanger.
■ Phase/VoltageMonitor(3phaseonly)–Monitors
main power for low voltage, high voltage or
phase loss.
■ R-410A Refrigerant – No Ozone Depletion
Potential with no phase out date.
■ HeatRecoveryCoilForDomesticWaterHeating
(models036-072)–Specialheatrecovery
(desuperheater)coilispipedintothecompressor
discharge line. Domestic water connections are
1/2" female pipe threads.
■ 24-voltelectromechanicalcontrolsystem.
■ Threadedcopperttingsoutsidethecabinetallow
for load and source piping connection.
Page 4 of 32 CAT 1107
Table 1.
Unit Size
036
048
060
072
120
150
180
240
300
360
420
Electrical Data – WRA, WHA, WCA 036 – 420
Compressor Total Min./Max. Min. Circuit Max. Circuit Max. Fuse
Voltage-Hz-Phase
208-230/60/1
208-230/60/3
460/60/3
575/60/3
208-230/60/1
208-230/60/3
460/60/3
575/60/3
208-230/60/1
208-230/60/3
460/60/3
575/60/3
208-230/60/3
460/60/3
575/60/3
208-230/60/3
460/60/3
575/60/3
208-230/60/3
460/60/3
575/60/3
208-230/60/3
460/60/3
575/60/3
208-230/60/3
460/60/3
575/60/3
208-230/60/3
460/60/3
575/60/3
208-230/60/3
460/50/3
575/60/3
208-230/60/3
460/60/3
575/60/3
RLA (each) LRA (each)
16.7
10.4
5.8
3.8
23.1
16.1
7.1
5.6
30.2
20.6
9.7
7.7
22.5
10.6
7.7
20.1
9.7
7.7
22.5
10.6
7.7
25
12.2
9
30.2
16.7
12.2
48.1
18.6
14.8
51.3
22.5
19.9
55.8
27
23.8
79
73
38
36.5
134
91
46
37
158
155
75
54
149
75
54
155
75
54
149
75
54
164
100
78
225
114
80
245
125
100
300
150
109
340
173
132
Amps Volts Ampacity Breaker Size
16.7
10.4
5.8
3.8
23.1
16.1
7.1
5.6
30.2
20.6
9.7
7.7
22.5
10.6
7.7
40.2
19.4
15.4
45
21.2
15.4
50
24.4
18
60.4
33.4
24.4
96.2
37.2
29.6
102.6
45
39.8
111.6
54
47.6
197/253
187/253
414/506
517/632
197/253
187/253
414/506
517/632
197/253
187/253
414/506
517/632
187/253
414/506
517/632
187/253
414/506
517/632
187/253
414/506
517/632
187/253
414/506
517/632
187/253
414/506
517/632
187/253
414/506
517/632
187/253
414/506
517/632
187/253
414/506
517/632
20.9
13
7.3
4.8
28.9
20.1
8.9
7
37.8
25.8
12.1
9.6
28.1
13.3
9.6
46.4
21.8
17.3
50.6
23.9
17.3
56.3
27.5
20.3
68
37.6
27.5
108.2
41.9
33.3
115.4
50.6
44.8
125.6
60.8
53.6
35
20
15
15
50
35
15
15
60
45
20
15
50
20
15
60
30
25
70
30
25
80
35
25
90
50
35
150
60
45
150
70
60
175
80
70
35
20
15
15
50
35
15
15
60
45
20
15
50
20
15
60
30
25
70
30
25
80
35
25
90
50
35
150
60
45
150
70
60
175
80
70
CAT 1107 Page 5 of 32
Capacity Data – WRA, WCA 036 – Cooling
EWT GPM WPD EWT GPM LWT WPD
40
50
70
85
90
100
110
Source
7.5
9.0
7.5
9.0
7.5
9.0
7.5
9.0
7.5
9.0
7.5
9.0
9.0
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
16.8
55
60
55
60
55
60
55
60
55
60
55
60
55
60
55
60
55
60
55
60
55
60
55
60
55
60
50
7.5
9.0
7.5
9.0
7.5
9.0
50
7.5
9.0
7.5
9.0
7.5
9.0
50
7.5
9.0
7.5
9.0
7.5
9.0
50
7.5
9.0
7.5
9.0
7.5
9.0
50
7.5
9.0
7.5
9.0
7.5
9.0
50
7.5
9.0
7.5
9.0
7.5
9.0
50
7.5
9.0
7.5
9.0
7.5
9.0
50
7.5
9.0
7.5
9.0
7.5
9.0
50
7.5
9.0
7.5
9.0
7.5
9.0
50
7.5
9.0
7.5
9.0
7.5
9.0
50
7.5
9.0
7.5
9.0
7.5
9.0
50
7.5
9.0
7.5
9.0
7.5
9.0
50
7.5
9.0
7.5
9.0
7.5
9.0
Load
40.1
41.6
44.4
46.0
48.6
50.3
40.1
41.6
44.3
46.0
48.5
50.3
40.8
42.2
45.1
46.6
49.4
51.0
40.8
42.2
45.1
46.6
49.3
51.0
41.6
42.9
45.9
47.3
50.3
51.8
41.5
42.9
45.9
47.3
50.2
51.7
42.2
43.4
46.6
47.9
50.9
52.4
42.1
43.4
46.5
47.8
50.9
52.3
42.4
43.6
46.8
48.1
51.2
52.5
42.3
43.5
46.7
48.0
51.1
52.5
42.7
43.9
47.2
48.4
51.6
52.9
42.7
43.8
47.1
48.4
51.5
52.8
43.1
44.2
47.5
48.7
51.9
53.2
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
CAT 1107 Page 6 of 32
Capacity
Btu/h
36,885
37,433
39,709
40,325
42,654
43,343
38,520
39,096
41,481
42,130
44,571
45,297
37,784
38,329
40,665
41,277
43,668
44,354
37,479
38,023
40,348
40,960
43,341
44,027
33,327
33,779
35,866
36,375
38,512
39,081
35,270
35,752
37,967
38,510
40,779
41,387
33,080
33,509
35,622
36,103
38,269
38,808
31,468
31,880
33,895
34,357
36,423
36,941
30,602
30,993
32,965
33,404
35,426
35,917
30,790
31,187
33,176
33,621
35,661
36,160
28,700
29,056
30,948
31,347
33,287
33,734
27,869
28,217
30,057
30,449
32,337
32,775
26,249
26,567
28,352
28,710
30,540
30,941
Rejection
Heat of
Btu/h
41,234
41,776
44,032
44,642
46,952
47,636
43,610
44,188
46,582
47,232
49,685
50,415
45,307
45,877
48,323
48,964
51,470
52,188
43,709
44,263
46,630
47,254
49,680
50,380
38,702
39,142
41,174
41,669
43,752
44,306
43,481
43,980
46,271
46,832
49,181
49,809
44,275
44,736
47,010
47,529
49,861
50,441
39,535
39,951
41,988
42,456
44,546
45,070
39,119
39,514
41,508
41,952
43,997
44,493
39,576
39,980
42,004
42,458
44,534
45,042
38,760
39,126
41,072
41,483
43,478
43,938
37,186
37,541
39,413
39,812
41,733
42,179
36,863
37,189
39,017
39,384
41,258
41,669
Watts
1,413
1,417
1,438
1,443
1,465
1,471
1,489
1,494
1,515
1,520
1,542
1,548
1,642
1,647
1,669
1,675
1,698
1,705
1,668
1,673
1,695
1,700
1,723
1,729
2,022
2,027
2,050
2,056
2,080
2,086
2,083
2,087
2,110
2,116
2,139
2,146
2,480
2,485
2,509
2,515
2,541
2,547
2,486
2,490
2,514
2,519
2,543
2,549
2,677
2,682
2,707
2,713
2,739
2,746
2,650
2,654
2,678
2,683
2,708
2,714
3,046
3,051
3,077
3,083
3,110
3,116
2,996
3,001
3,024
3,029
3,054
3,060
3,384
3,388
3,412
3,417
3,442
3,447
Source
LWT
51.6
51.8
52.4
52.6
53.2
53.4
49.7
49.8
50.3
50.5
51.0
51.2
61.0
61.1
61.7
61.9
62.5
62.7
59.2
59.3
59.8
59.9
60.4
60.6
80.5
80.6
81.2
81.3
81.9
82.0
78.8
78.9
79.3
79.4
79.9
80.0
95.2
95.3
95.8
95.9
96.5
96.6
93.5
93.6
94.0
94.1
94.6
94.7
100.1
100.2
100.7
100.8
101.4
101.5
98.4
98.5
98.9
99.0
99.5
99.6
110.0
110.1
110.6
110.7
111.2
111.3
108.3
108.4
108.8
108.9
109.4
109.5
118.3
118.4
118.8
118.8
119.3
119.4
Capacity Data – WRA, WHA 036 – Heating
EWT GPM EWT GPM LWT WPD
30
40
50
70
85
Notes:
1. Heating Data in BOLD = Freeze protection of the source loop is required.
2. Alldataisbasedon100%waterastheheattransferuid.
3. Apply capacity correction factors based on the percent anti-freeze mixture.
4. Do not select units above 120°F leaving water temperature for the load in the heating mode or below 40°F for the load in the cooling mode.
5. Capacity - Btuh produced by the load loop.
6. Load - water loop serving the air handler or terminal device.
7. Source - heat rejection water loop; geothermal or boiler/tower loop.
EWT = Entering water temperature, °F
GPM=Gallonsperminuteow
WPD = Water pressure drop, ft. of water
Btu/h = Btu per hour of heat transfer
LWT = Leaving water temperature, °F
Source
7.5
9.0
7.5
9.0
7.5
9.0
7.5
9.0
7.5
9.0
100
110
100
110
100
110
100
110
100
110
100
110
100
110
100
110
100
110
100
110
90
7.5
9.0
7.5
9.0
7.5
9.0
90
7.5
9.0
7.5
9.0
7.5
9.0
90
7.5
9.0
7.5
9.0
7.5
9.0
90
7.5
9.0
7.5
9.0
7.5
9.0
90
7.5
9.0
7.5
9.0
7.5
9.0
90
7.5
9.0
7.5
9.0
7.5
9.0
90
7.5
9.0
7.5
9.0
7.5
9.0
90
7.5
9.0
7.5
9.0
7.5
9.0
90
7.5
9.0
7.5
9.0
7.5
9.0
90
7.5
9.0
7.5
9.0
7.5
9.0
Load
97.7
96.4
107.6
106.4
117.6
116.3
97.7
96.4
107.7
106.4
117.6
116.3
98.8
97.3
108.7
107.3
118.6
117.2
98.8
97.4
108.8
107.3
118.7
117.2
100.0
98.3
109.9
108.2
119.8
118.2
100.1
98.4
110.0
108.3
119.9
118.2
102.8
100.6
112.6
110.5
122.4
120.3
102.9
100.8
112.7
110.6
122.5
120.4
105.2
102.7
115.0
112.5
124.7
122.3
105.4
102.9
115.1
112.7
124.9
122.4
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
11.7
16.8
Capacity
Btu/h
29,416
29,424
29,243
29,257
29,003
29,020
34,116
34,127
33,901
33,918
33,609
33,630
33,892
33,909
33,636
33,656
33,341
33,363
34,692
34,711
34,413
34,436
34,096
34,121
38,093
38,124
37,720
37,752
37,337
37,369
39,726
39,760
39,315
39,351
38,896
38,931
49,100
49,180
48,375
48,451
47,696
47,765
48,882
48,967
48,127
48,207
47,419
47,494
56,998
57,139
55,958
56,088
54,998
55,115
58,214
58,366
57,107
57,247
56,084
56,210
Heat of
Absorbtion
21,578
21,651
20,363
20,447
18,991
19,084
20,657
20,728
19,489
19,571
18,172
18,262
25,692
25,786
24,356
24,461
22,881
22,994
26,239
26,337
24,867
24,975
23,355
23,471
Btu/h
30,548
30,670
29,046
29,178
27,421
27,561
30,845
30,971
29,318
29,453
27,668
27,811
39,080
39,269
37,293
37,489
35,419
35,621
40,944
41,146
39,052
39,262
37,073
37,290
47,197
47,463
45,120
45,391
42,978
43,251
50,055
50,344
47,826
48,120
45,532
45,828
Watts
2,430
2,413
2,699
2,680
2,990
2,970
2,531
2,513
2,811
2,792
3,115
3,094
2,539
2,518
2,827
2,805
3,142
3,118
2,554
2,533
2,844
2,821
3,161
3,136
2,497
2,474
2,785
2,760
3,103
3,076
2,546
2,522
2,840
2,814
3,164
3,136
2,521
2,491
2,815
2,782
3,145
3,108
2,535
2,505
2,830
2,796
3,162
3,125
2,488
2,454
2,773
2,734
3,097
3,054
2,534
2,498
2,823
2,783
3,152
3,108
Source
LWT
24.6
24.6
24.9
24.9
25.3
25.3
25.5
25.5
25.8
25.7
26.0
26.0
33.6
33.6
33.9
33.9
34.3
34.3
34.6
34.6
34.9
34.9
35.2
35.2
42.4
42.4
42.8
42.7
43.2
43.2
43.6
43.6
43.9
43.9
44.3
44.2
59.7
59.6
60.2
60.1
60.6
60.6
61.3
61.2
61.7
61.6
62.1
62.1
72.2
72.2
72.8
72.7
73.4
73.3
74.2
74.1
74.7
74.6
75.2
75.1
CAT 1107 Page 7 of 32
Capacity Data – WRA, WCA 048 – Cooling
EWT GPM WPD EWT GPM LWT WPD
40
50
70
85
90
100
110 12.0
Source
10.0
12.0
10.0
12.0
10.0
12.0
10.0
12.0
10.0
12.0
10.0
12.0
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
12.3
55
60
55
60
55
60
55
60
55
60
55
60
55
60
55
60
55
60
55
60
55
60
55
60
55
60
50
10.0
12.0
10.0
12.0
10.0
12.0
50
10.0
12.0
10.0
12.0
10.0
12.0
50
10.0
12.0
10.0
12.0
10.0
12.0
50
10.0
12.0
10.0
12.0
10.0
12.0
50
10.0
12.0
10.0
12.0
10.0
12.0
50
10.0
12.0
10.0
12.0
10.0
12.0
50
10.0
12.0
10.0
12.0
10.0
12.0
50
10.0
12.0
10.0
12.0
10.0
12.0
50
10.0
12.0
10.0
12.0
10.0
12.0
50
10.0
12.0
10.0
12.0
10.0
12.0
50
10.0
12.0
10.0
12.0
10.0
12.0
50
10.0
12.0
10.0
12.0
10.0
12.0
50
10.0
12.0
10.0
12.0
10.0
12.0
Load
40.9
42.3
45.2
46.7
49.5
51.1
40.9
42.3
45.2
46.7
49.5
51.1
41.5
42.8
45.9
47.3
50.2
51.7
41.5
42.8
45.9
47.3
50.2
51.7
42.3
43.5
46.7
48.0
51.1
52.4
42.2
43.4
46.6
47.9
51.0
52.4
42.8
43.9
47.3
48.5
51.7
53.0
42.8
43.9
47.2
48.4
51.6
52.9
43.0
44.1
47.5
48.6
51.9
53.1
43.0
44.1
47.4
48.6
51.8
53.1
43.3
44.4
47.8
48.9
52.3
53.5
43.3
44.3
47.8
48.9
52.2
53.4
43.6
44.6
48.1
49.2
52.6
53.7
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
CAT 1107 Page 8 of 32
Capacity
Btu/h
45,207
45,879
48,669
49,424
52,278
53,123
47,211
47,917
50,841
51,635
54,627
55,518
46,309
46,977
49,840
50,591
53,521
54,361
45,936
46,603
49,452
50,202
53,120
53,960
40,847
41,401
43,959
44,582
47,202
47,899
43,228
43,819
46,534
47,199
49,980
50,725
40,543
41,069
43,659
44,249
46,903
47,564
38,569
39,073
41,542
42,109
44,641
45,276
37,507
37,986
40,403
40,941
43,419
44,021
37,737
38,223
40,661
41,207
43,707
44,319
35,176
35,611
37,931
38,420
40,797
41,345
34,157
34,583
36,839
37,319
39,633
40,170
32,172
32,561
34,748
35,187
37,430
37,922
Rejection
Heat of
Btu/h
49,498
50,159
52,909
53,653
56,468
57,302
52,364
53,068
55,987
56,781
59,770
60,661
54,279
54,974
57,955
58,737
61,790
62,665
52,380
53,056
55,942
56,703
59,661
60,513
46,132
46,668
49,144
49,747
52,284
52,959
51,850
52,458
55,249
55,933
58,795
59,562
52,515
53,077
55,847
56,478
59,318
60,025
46,916
47,423
49,905
50,476
53,022
53,660
46,312
46,793
49,222
49,762
52,252
52,857
46,878
47,370
49,836
50,389
52,919
53,538
45,697
46,142
48,512
49,012
51,442
52,002
43,868
44,299
46,581
47,066
49,407
49,951
43,285
43,682
45,909
46,356
48,640
49,140
Watts
1,491
1,496
1,517
1,523
1,546
1,552
1,572
1,577
1,599
1,604
1,627
1,634
1,733
1,738
1,762
1,768
1,792
1,799
1,760
1,766
1,788
1,794
1,818
1,825
2,134
2,139
2,164
2,170
2,195
2,202
2,198
2,203
2,227
2,233
2,258
2,264
2,617
2,622
2,648
2,654
2,681
2,688
2,623
2,628
2,653
2,659
2,684
2,691
2,825
2,831
2,857
2,863
2,891
2,898
2,797
2,802
2,826
2,832
2,858
2,864
3,215
3,220
3,248
3,254
3,282
3,289
3,162
3,167
3,192
3,197
3,223
3,229
3,572
3,576
3,601
3,606
3,632
3,638
Source
LWT
50.4
50.6
51.2
51.3
51.9
52.1
48.7
48.8
49.3
49.5
50.0
50.1
59.9
60.0
60.5
60.7
61.2
61.4
58.2
58.3
58.8
58.9
59.4
59.5
79.4
79.5
80.0
80.1
80.6
80.8
77.8
77.9
78.3
78.4
78.9
79.0
94.1
94.2
94.6
94.7
95.2
95.4
92.6
92.6
93.0
93.1
93.5
93.7
99.0
99.1
99.5
99.6
100.1
100.2
97.5
97.6
98.0
98.0
98.4
98.5
108.8
108.9
109.4
109.5
109.9
110.1
107.4
107.4
107.8
107.9
108.3
108.4
117.3
117.4
117.7
117.8
118.2
118.3
Capacity Data – WRA, WHA 048 – Heating
EWT GPM EWT GPM LWT WPD
30
40
50
70
85
Notes:
1. Heating Data in BOLD = Freeze protection of the source loop is required.
2. Alldataisbasedon100%waterastheheattransferuid.
3. Apply capacity correction factors based on the percent anti-freeze mixture.
4. Do not select units above 120°F leaving water temperature for the load in the heating mode or below 40°F for the load in the cooling mode.
5. Capacity - Btuh produced by the load loop.
6. Load - water loop serving the air handler or terminal device.
7. Source - heat rejection water loop; geothermal or boiler/tower loop.
EWT = Entering water temperature, °F
GPM=Gallonsperminuteow
WPD = Water pressure drop, ft. of water
Btu/h = Btu per hour of heat transfer
LWT = Leaving water temperature, °F
Source
10.0
12.0
10.0
12.0
10.0
12.0
10.0
12.0
10.0
12.0
100
110
100
110
100
110
100
110
100
110
100
110
100
110
100
110
100
110
100
110
90
10.0
12.0
10.0
12.0
10.0
12.0
90
10.0
12.0
10.0
12.0
10.0
12.0
90
10.0
12.0
10.0
12.0
10.0
12.0
90
10.0
12.0
10.0
12.0
10.0
12.0
90
10.0
12.0
10.0
12.0
10.0
12.0
90
10.0
12.0
10.0
12.0
10.0
12.0
90
10.0
12.0
10.0
12.0
10.0
12.0
90
10.0
12.0
10.0
12.0
10.0
12.0
90
10.0
12.0
10.0
12.0
10.0
12.0
90
10.0
12.0
10.0
12.0
10.0
12.0
Load
96.9
95.8
106.9
105.8
116.8
115.7
97.0
95.8
106.9
105.8
116.9
115.7
97.9
96.6
107.9
106.6
117.8
116.5
98.0
96.7
107.9
106.6
117.9
116.6
99.0
97.5
108.9
107.5
118.9
117.4
99.1
97.6
109.0
107.5
118.9
117.4
101.5
99.6
111.4
109.5
121.2
119.4
101.7
99.7
111.5
109.6
121.3
119.4
103.8
101.5
113.5
111.3
123.3
121.1
104.0
101.7
113.7
111.4
123.5
121.2
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
8.5
12.3
Capacity
Btu/h
35,495
35,505
35,286
35,303
34,996
35,017
41,166
41,179
40,907
40,927
40,555
40,580
40,896
40,916
40,587
40,612
40,231
40,258
41,862
41,885
41,525
41,553
41,143
41,172
45,965
46,002
45,515
45,554
45,054
45,092
47,936
47,977
47,440
47,483
46,934
46,976
59,247
59,344
58,373
58,464
57,553
57,636
58,983
59,086
58,073
58,169
57,218
57,310
68,777
68,947
67,522
67,679
66,364
66,505
70,244
70,428
68,909
69,078
67,675
67,826
Heat of
Absorbtion
26,333
26,420
24,901
25,000
23,281
23,391
25,207
25,291
23,830
23,926
22,274
22,381
31,301
31,412
29,723
29,847
27,980
28,114
31,965
32,080
30,344
30,471
28,556
28,694
Btu/h
37,166
37,310
35,389
35,545
33,466
33,632
37,525
37,673
35,717
35,877
33,765
33,934
47,449
47,674
45,327
45,560
43,104
43,343
49,708
49,949
47,461
47,711
45,113
45,370
57,241
57,559
54,769
55,091
52,222
52,547
60,703
61,049
58,049
58,399
55,321
55,672
Watts
2,855
2,835
3,171
3,149
3,513
3,490
2,974
2,953
3,303
3,280
3,660
3,636
2,983
2,959
3,321
3,295
3,692
3,663
3,000
2,976
3,341
3,315
3,714
3,685
2,934
2,906
3,273
3,243
3,646
3,613
2,991
2,963
3,337
3,306
3,718
3,684
2,962
2,927
3,308
3,268
3,695
3,652
2,978
2,943
3,325
3,286
3,715
3,671
2,924
2,883
3,258
3,213
3,639
3,588
2,977
2,935
3,316
3,270
3,703
3,651
Source
LWT
25.1
25.1
25.4
25.3
25.7
25.6
25.9
25.9
26.1
26.1
26.4
26.3
34.1
34.1
34.4
34.4
34.8
34.7
35.1
35.0
35.3
35.3
35.6
35.6
43.1
43.0
43.4
43.4
43.8
43.7
44.2
44.1
44.4
44.4
44.8
44.7
60.6
60.6
61.0
61.0
61.5
61.4
62.1
62.0
62.4
62.4
62.8
62.8
73.4
73.3
73.9
73.8
74.4
74.3
75.2
75.1
75.6
75.6
76.1
76.0
CAT 1107 Page 9 of 32
Capacity Data – WRA, WCA 060 – Cooling
EWT GPM WPD EWT GPM LWT WPD
40
50
70
85
90
100
110
Source
11.2
13.5
11.2
13.5
11.2
13.5
11.2
13.5
11.2
13.5
11.2
13.5
13.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
14.5
55
60
55
60
55
60
55
60
55
60
55
60
55
60
55
60
55
60
55
60
55
60
55
60
55
60
50
11.2
13.5
11.2
13.5
11.2
13.5
50
11.2
13.5
11.2
13.5
11.2
13.5
50
11.2
13.5
11.2
13.5
11.2
13.5
50
11.2
13.5
11.2
13.5
11.2
13.5
50
11.2
13.5
11.2
13.5
11.2
13.5
50
11.2
13.5
11.2
13.5
11.2
13.5
50
11.2
13.5
11.2
13.5
11.2
13.5
50
11.2
13.5
11.2
13.5
11.2
13.5
50
11.2
13.5
11.2
13.5
11.2
13.5
50
11.2
13.5
11.2
13.5
11.2
13.5
50
11.2
13.5
11.2
13.5
11.2
13.5
50
11.2
13.5
11.2
13.5
11.2
13.5
50
11.2
13.5
11.2
13.5
11.2
13.5
Load
41.0
42.4
45.3
46.8
49.6
51.2
41.0
42.4
45.3
46.8
49.6
51.2
41.6
43.0
46.0
47.4
50.3
51.9
41.6
42.9
46.0
47.4
50.3
51.8
42.3
43.6
46.8
48.1
51.2
52.6
42.3
43.5
46.7
48.0
51.1
52.5
42.9
44.0
47.3
48.6
51.8
53.1
42.8
44.0
47.3
48.5
51.7
53.0
43.1
44.2
47.5
48.7
52.0
53.3
43.0
44.1
47.5
48.7
51.9
53.2
43.4
44.5
47.9
49.0
52.3
53.6
43.4
44.4
47.8
49.0
52.3
53.5
43.7
44.7
48.2
49.3
52.7
53.8
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
10.5
14.5
CAT 1107 Page 10 of 32
Capacity
Btu/h
50,078
50,822
53,913
54,749
57,910
58,846
52,298
53,080
56,319
57,199
60,513
61,499
51,299
52,038
55,210
56,041
59,288
60,218
50,885
51,624
54,780
55,611
58,843
59,774
45,247
45,862
48,695
49,385
52,288
53,059
47,885
48,540
51,547
52,284
55,365
56,190
44,912
45,494
48,363
49,017
51,957
52,688
42,724
43,283
46,018
46,646
49,451
50,154
41,548
42,078
44,756
45,352
48,097
48,764
41,803
42,341
45,042
45,647
48,416
49,094
38,966
39,448
42,017
42,560
45,193
45,800
37,837
38,309
40,808
41,340
43,903
44,498
35,638
36,070
38,492
38,978
41,463
42,007
Rejection
Heat of
Btu/h
55,480
56,214
59,270
60,096
63,225
64,151
58,684
59,466
62,709
63,591
66,912
67,901
60,908
61,680
64,993
65,861
69,254
70,227
58,767
59,518
62,725
63,570
66,856
67,803
51,915
52,512
55,263
55,933
58,754
59,504
58,336
59,012
62,114
62,874
66,055
66,907
59,265
59,890
62,969
63,671
66,828
67,614
52,932
53,495
56,254
56,888
59,717
60,427
52,321
52,856
55,556
56,157
58,926
59,598
52,945
53,492
56,233
56,847
59,658
60,347
51,750
52,245
54,879
55,435
58,137
58,759
49,661
50,141
52,677
53,216
55,818
56,422
49,132
49,574
52,049
52,545
55,084
55,640
Watts
1,802
1,808
1,834
1,841
1,868
1,876
1,899
1,905
1,932
1,939
1,967
1,975
2,094
2,101
2,129
2,136
2,166
2,174
2,127
2,134
2,161
2,168
2,197
2,206
2,579
2,585
2,615
2,622
2,652
2,661
2,656
2,662
2,691
2,698
2,728
2,736
3,162
3,169
3,200
3,208
3,240
3,248
3,170
3,176
3,206
3,213
3,244
3,251
3,414
3,421
3,453
3,460
3,494
3,502
3,380
3,386
3,416
3,422
3,453
3,461
3,885
3,892
3,925
3,932
3,966
3,974
3,821
3,827
3,857
3,864
3,895
3,902
4,316
4,322
4,352
4,358
4,390
4,396
Source
LWT
50.5
50.6
51.2
51.3
51.9
52.1
48.7
48.8
49.3
49.4
49.9
50.0
59.9
60.0
60.6
60.7
61.2
61.4
58.2
58.3
58.8
58.9
59.3
59.5
79.4
79.5
80.0
80.2
80.7
80.8
77.8
77.9
78.3
78.4
78.9
79.0
94.1
94.2
94.7
94.8
95.3
95.4
92.6
92.7
93.1
93.2
93.6
93.7
99.0
99.1
99.6
99.7
100.2
100.3
97.5
97.6
98.0
98.1
98.5
98.6
108.9
109.0
109.5
109.6
110.0
110.1
107.4
107.5
107.9
108.0
108.3
108.4
117.4
117.4
117.8
117.9
118.2
118.3
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