American Standard Inc.
6200 Troup Highway
Tyler, Texas 75711
For more information contact
your local dealer (distributor)
8/06
Since the manufacturer has a policy of continuous product and product data improvement, it reserves the
right to change design and specifications without notice.
SUPPLEMENTARY HEATERS CHECKOUT PROCEDURES,
IF USED DOES HEATER REQUIRE A SPECIAL CIRCUIT?
SEE “LIMITATIONS AND RECOMMENDATIONS”
1. Be sure the disconnect switch is “OFF”, and safety label (if any) is attached .................................... [ ]
2. Check on field wiring for tight connections and grounding according to codes ................................. [ ]
3. Check circuit protection for proper size per nameplate specifications ............................................... [ ]
4. Check control box panel — in place and secured .............................................................................. [ ]
NOTE:
OPERATION OF HEATERS MUST BE CHECKED DURING THE OPERATION CHECK OF THE TOTAL SYSTEM.
CHECKOUT PROCEDURES
After installation has been completed, it is recommended that the Air Handler be checked against the following checklist.
6. Make sure secondary drain pan is installed........... [ ]
7. Check power supply for correct requirements
per unit nameplate ................................................ [ ]
8. Check filters for proper size. Inform owner of
proper procedure for removal and reinstallation ... [ ]
9. Energize the system and carefully observe
its operation; make any necessary adjustment ......[ ]
10. Instruct owner, engineer (if possible) on proper
operating procedure and leave Use and Care
Manual with owner ............................................... [ ]
1. Make sure power is “OFF” at power
disconnect switch............................................ [ ]
2. Check all field wiring for tight connections.
See that grounding of unit is in accord with code[ ]
3. Make sure unit suspension (if used) is secure
and that there are no tools or loose debris in,
around or on top of the unit........................... [ ]
4. Check all duct outlets; they must be open
and unrestricted ....................................................[ ]
5. Check drain lines and be sure all joints are tight .. [ ]
Blower speed changes are made on the ICM Fan Con-
trol mounted on the control box. The ICM Fan Control
controls the variable speed motor.
There is a bank of 8 dip switches (See Figure 9). The dip
switches work in pairs to match the airflow for the out-
door unit size (tons), cooling airflow adjustment, Fan
off-delay options, and heating airflow adjustment. The
switches appear as shown in Figure 10.
If the airflow needs to be increased or decreased, see
the Airflow Label on the air handler or the Blower Per-
formance Table in the Service Facts. Information on
changing the speed of the blower motor for your specific
outdoor model size is in the Blower Performance Table.
Be sure to set the airflow for the correct tonnage.
Refer to blower housing for correct setting.
Switches 1 - 4 Cooling Airflow
Switches 5 - 6 Fan Off Delay Options
Switches 7 - 8 Auxiliary Heat
If the optional humidistat is used, remove R-BK jumper
from the low voltage terminal board (not shown) and in-
stall the humidistat between R and BK. (Jumper R to O
for cooling-only/non-heat pump systems with a humidis-
tat.)
INDOOR BLOWER TIMING
The FAN-OFF period is set on the ICM Fan Control
board by dip switches #5 and #6. The blower off-delay
settings are as follows:
IMPORTANT:
Leave dip switch 5 & 6 in the "as-shipped" position during
system start-up and check out. Afterwards, adjust as
desired.
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