Install Instructions

48
IOM - HZH/HZV Series
WARNING! When the disconnect switch is closed, high
voltage is present in some areas of the electrical panel.
Exercise caution when working with energized equipment.
CAUTION! Verify that ALL water control valves are open and
allow water flow prior to engaging the compressor. Freezing
of the coax or water lines can permanently damage the heat
pump.
WARNING!
CAUTION!
Unit Operating Conditions
Table 10: HZ Coax Water Pressure Drop
Operating Pressure/Temperature tables include the
following notes:
• Airflow is at nominal (rated) conditions;
• Entering air is based upon 70°F [21°C] DB in heating
and 80/67°F [27/19°C] in cooling;
• Subcooling is based upon head pressure at
compressor service port;
• Cooling air and water values can vary greatly with
changes in humidity level.
Model GPM
Pressure Drop (psi)
30ºF 50ºF 70ºF 90ºF
024
2.3 0.47 0.41 0.40 0.40
3.0 0.68 0.60 0.57 0.57
3.4 0.79 0.70 0.67 0.66
4.5 1.14 1.01 0.95 0.93
6.0 1.75 1.56 1.45 1.40
036
3.0 0.91 0.79 0.79 0.82
4.5 1.52 1.30 1.24 1.24
6.0 2.21 1.89 1.76 1.72
6.8 2.62 2.25 2.06 1.99
9.0 3.92 3.41 3.13 3.00
048
4.5 0.24 0.11 0.10 0.12
6.0 0.89 0.72 0.66 0.65
6.8 1.19 1.00 0.93 0.90
9.0 2.13 1.87 1.75 1.68
12.0 3.82 3.48 3.29 3.19
060
6.0 0.9 0.2 0.2 0.3
7.5 1.7 0.9 0.7 0.8
9.0 2.5 1.5 1.3 1.4
11.3 3.7 2.6 2.3 2.3
12.0 4.1 3.0 2.6 2.6
15.0 6.1 4.7 4.1 4.0
070
7.0 1.4 0.7 0.5 0.7
8.5 2.2 1.3 1.1 1.2
10.5 3.3 2.2 1.9 2.0
12.8 4.6 3.4 3.0 2.9
14.0 5.4 4.1 3.6 3.5
17.0 7.6 6.0 5.4 5.2