Heat Controller HTV Series - Coax Pressure Drop Table

Heat Controller, Inc. HTV/HTD/HTH SERIES
40
Unit Start-Up Procedure
Unit Operating Conditions
UNIT START-UP PROCEDURE
T
WARNING! When the disconnect
switch is closed, high voltage is
present in some areas of the electrical
panel. Exercise extreme caution
when working with energized
equipment.
 WARNING! 
CAUTION! Verify that all water
control valves are open and allow
water ow prior to engaging the
compressor. Freezing of the coax or
water lines can permanently damage
the heat pump.
 CAUTION! 
37
Figure 17: Test Mode Pins
Short test pins together to
enter Test Mode and
speed-up timing and
delays for 20 minutes
UNIT OPERATING CONDITIONS
Pressure Drop, psi
Model GPM
30°F 50°F 70°F 90°F
4.0 1.5 1.3 1.1 1.0
6.0 3.1 2.6 2.3 2.1
7.0 4.1 3.4 3.0 2.7
024
8.0 5.1 4.3 3.8 3.4
4.0 1.2 1.0 0.8 0.6
6.0 2.6 2.5 2.3 2.1
8.0 4.5 4.2 4.0 3.7
036
9.0 5.7 5.2 4.8 4.4
5.5 1.1 0.9 0.8 0.7
8.3 2.2 2.1 2.0 1.8
11.0 3.9 3.6 3.2 3.1
048
12.0 4.5 4.2 3.8 3.5
7.0 0.5 0.3 0.2 0.1
10.5 1.9 1.8 1.7 1.6
14.0 3.9 3.5 3.2 2.9
060
15.0 4.8 4.3 3.9 3.5
Table 8: HTV/HTD Coax Water Pressure Drop
7.5 1.7 1.5 1.3 1.3
11.3 3.9 3.4 3.0 2.8
15.0 6.9 6.0 5.4 5.0
070
17.0 8.9 7.7 6.9 6.5
UNIT START-UP PROCEDURE
T
WARNING! When the disconnect
switch is closed, high voltage is
present in some areas of the electrical
panel. Exercise extreme caution
when working with energized
equipment.
 WARNING! 
CAUTION! Verify that all water
control valves are open and allow
water ow prior to engaging the
compressor. Freezing of the coax or
water lines can permanently damage
the heat pump.
 CAUTION! 
37
Figure 17: Test Mode Pins
Short test pins together to
enter Test Mode and
speed-up timing and
delays for 20 minutes
UNIT OPERATING CONDITIONS
Pressure Drop, psi
Model GPM
30°F 50°F 70°F 90°F
4.0 1.5 1.3 1.1 1.0
6.0 3.1 2.6 2.3 2.1
7.0 4.1 3.4 3.0 2.7
024
8.0 5.1 4.3 3.8 3.4
4.0 1.2 1.0 0.8 0.6
6.0 2.6 2.5 2.3 2.1
8.0 4.5 4.2 4.0 3.7
036
9.0 5.7 5.2 4.8 4.4
5.5 1.1 0.9 0.8 0.7
8.3 2.2 2.1 2.0 1.8
11.0 3.9 3.6 3.2 3.1
048
12.0 4.5 4.2 3.8 3.5
7.0 0.5 0.3 0.2 0.1
10.5 1.9 1.8 1.7 1.6
14.0 3.9 3.5 3.2 2.9
060
15.0 4.8 4.3 3.9 3.5
Table 8: HTV/HTD Coax Water Pressure Drop
7.5 1.7 1.5 1.3 1.3
11.3 3.9 3.4 3.0 2.8
15.0 6.9 6.0 5.4 5.0
070
17.0 8.9 7.7 6.9 6.5
Table 8: HTV/HTD/HTH Water Pressure Drop