Unit Operating Conditions - Heat Controller HKV Installation, Operation & Mainenance Manual

IOM Instructions

Unit Operating Conditions

Table 8: Typical Unit Operating Pressures and Temperatures
Entering
Water Voltage Suction
Pressure
Temp F
PSIG
1.5
30
2.3
3.0
1.5 128-130
50
2.3 128-130
3.0 124-131
1.5 131-136
70
2.3 130-135
3.0 130-138
1.5 134-140
90
2.3 133-139
3.0 131-138
1.5 139-152
110
2.3 138-146
3.0 137-144
*Based on Nominal 400 cfm per ton airflow and 70°F EAT htg and 80/67°F EAT cooling
**Cooling air and water numbers can vary greatly with changes in humidity
Subcooling is based upon the head pressure at compressor service port
Table 9: Water Temperature Change Through Heat Exchanger
Water Flow, gpm [l/m]
For Closed Loop: Ground Source or
Closed Loop Systems at 3 gpm per ton
[3.9l/m per kw]
For Open Loop: Ground Water Systems
at 1.5 gpm per ton [2.0l/m per kw]
HKV LArge CommerCiAL
Cooling
Discharge
Super- Sub-
Pressure
heat cooling
PSIG
227-249 10-14 12-20
213-234 11-17 10-18
199-219 12-24 8-16
311-334 7-12 11-20
297-323 8-11 10-16
283-318 11-14 7-13
388-428 7-10 10-15
370-406 8-10 9-13
353-383 8-10 7-12
485-520 5-10 9-19
469-497 6-10 7-17
449-475 7-10 6-14
Rise, Cooling Drop, Heating
°F, [°C] °F, [°C]
9-12 4-11
18-23 7-20
Air
Water Suction
Temp
Temp Pressure
Drop
Rise F PSIG
F DB
60-69
63-72
67-76
21-23 21-26 88-98
15-17 21-26 93-103
9-11 21-26 97-108
20-22 20-25 117-129
14-17 20-25 126-136
9-12 20-25 133-145
18-21 20-25 158-169
13-17 20-25 167-179
9-12 20-25 176-190
18-20 19-24
13-16 19-24
9-12 19-24
41
Heat Controller, Inc.
Heating
Discharge
Super- Sub-
Pressure
heat cooling
PSIG
297-321 9-15 6-14
301-325 9-15 6-14
305-329 9-15 6-14
329-360 8-14 5-17
334-365 8-14 5-17
339-371 8-14 5-17
359-394 9-14 7-18
369-409 9-14 7-18
378-425 9-14 7-18
397-441 11-17 3-17
407-452 11-17 3-17
418-492 11-17 3-17
Water Air
Temp Temp
Drop Rise F
F DB
7-10 18-23
5-8 19-23
4-6 21-24
10-13 26-28
7-11 27-30
5-8 27-31
13-19 31-34
10-15 32-36
7-10 34-37
17-20 37-41
13-16 38-42
9-11 39-42