507607-03
Issue 1827
Page 20 of 23
Configuring Unit Capacity
(NOTE: Control must be in Idle mode)
Solid
PC
Release push button - Allows user to select Unit Capacity.
IMPORTANT
: Field replacement control
may need to be manually configured to validate outdoor unit capacity. Refer to unit nameplate model
number for capacity in 1,000 of BTUs. (18, 24, 30, 36, 42, 48, 60)
Blinking
PC
Push and hold button - Control will display unit capacity number for 3 seconds. When the correct
unit capacity number is displayed, release button. Selected code will flash for a 10-second period.
During that period, hold push button for 3 seconds to store code. Once code is stored, control will
automatically exit Field Test Mode. If 10-second period expires or push button is held less than 3
seconds, control will automatically exit Field Test Mode and go into Idle Mode without storing unit
capacity number. If this happens, configuring procedure must be repeated.
Table 9.
Configuring Unit Capacity
Display
Code
Procedure
Solid
Pt
Release push button - Allows user to select type and number of stages on outdoor unit.
IMPORTANT
: Field replacement control may need to be manually configured to validate outdoor
unit fan RPM setting is right for unit capacity. See RPM table on unit wiring diagram for proper RPM
settings. Type and number of stages: 1AC, 2AC, 1HP, 2HP - AC - air conditioning and HP - Heat
Pump.
Blinking
Pt
Push and hold button - Control will display type and number of stages for 3 seconds. When the
correct type and number of stages is displayed, release button. Selected code will flash for a
10-second period. During that period, hold push button for 3 seconds to store code. Once code is
stored, control will automatically exit Field Test Mode. If 10-second period expires or push button is
held for less than 3 seconds, control will automatically exit Field Test Mode and go into Idle Mode
without storing type and number of stages. If this happens, configuring procedure must be repeated.
Table 10.
Configuring Type and Number of Stages
Maintenance
Before performing maintenance operations on system,
turn the electric power to unit OFF at disconnect
switch(es). Unit may have multiple power supplies.
Electrical shock could cause personal injury or death.
WARNING
Maintenance and service must be performed by a qualified
installer or service agency.
At the beginning of each cooling season, the system should
be checked as follows:
1.
Clean and inspect condenser coil. Coil may be flushed
with a water hose. Be sure the power is off before
using water to clean the coil.
2. Outdoor fan motor is pre-lubricated and sealed. No
further lubrication is needed.
3. Visually inspect connecting lines and coils for evidence
of oil leaks.
4. Check wiring for loose connections.
5. Check for correct voltage at unit (with unit operating).
6. Check amp-draw outdoor fan motor.
Unit nameplate _________ Actual _________
NOTE:
If owner complains of insufficient cooling, the unit
should be gauged and refrigerant charge checked.
Refer to the Refrigerant Charging section.
Indoor Coil
1. Clean coil, if necessary.
2. Check connecting lines and coils for evidence of oil
leaks.
3. Check condensate pan line and clean, if necessary.
Indoor Unit
1.
Clean or change filters.
2. Adjust blower speed for cooling. Measure the pressure
drop over the coil to determine the correct blower CFM.
3.
Belt drive blowers: Check belt for wear and proper
tension.
4. Check all wiring for loose connections.
5. Check for correct voltage at unit (with unit operating).
6. Check amp-draw on blower motor.
Unit nameplate _________ Actual _________
