30
Table 10 — Ambient Charge — 100% Outside Air
and Combined Unit Subcool and Superheat
NOTE: Subcooling readings must be taken with the reheat circuit disabled. To
calculate subcooling temperature, convert liquid line head pressure to con-
densing temperature. Then, subtract the liquid line temperature.
Step 12 — Test Mode and Fan Balancing —
For fan balancing, the manual override function should be
used. This function manually enables one to set the operational
parameters of the following unit components (if equipped) for
unit start-up, troubleshooting or testing and balancing:
• Supply Fan VFD or ECM
• Exhaust Fan VFD or ECM
• Modulating HGRH
• Heating
• Digital Compressors
When the unit restarts, it will automatically default back to
the inputs that were previously entered during manual override.
AMBIENT
AIR TEMP
95°F
85°F
75°F
65°F
55°F
45°F
Subcool
10-12°F
No reheat circuit in unit
In heating
mode
Subcool
12-15°F
No reheat circuit in unit
In heating
mode
Subcool
13-16°F
No reheat circuit in unit
In heating
mode
Fig. 13 — Equipment Touch
