Final Check Out - ECR International WML-C Operation And Maintenance Manual

TABLE C-4: SYSTEM AND GENERAL TROUBLESHOOTING
Problem
Supply air temperature too
hot.
Supply air temperature too
cool.
Supply air temperature too
cool during first moments of
furnace cycle.

FINAL CHECK OUT

ENSURE THAT ALL
DEVICES AND
COMPONENTS HAVE BEEN SET
FOR NORMAL
ENSURE THAT ALL ELECTRICAL
CONNECTIONS ARE TIGHT AND
THAT THE WIRING IS SECURE.
IMPORTANT:
Please ensure that the homeowner is
informed and understands:
Possible Cause
Airflow blocked or dirty air filter.
Insufficient airflow.
Excess airflow.
Excessive duct losses.
Fan control "fan on" setting too
low.
Excessive duct losses.
Where the circuit breaker or fuse is
located in the main electrical panel.
SAFETY
Where the furnace switch is located,
ELECTRICAL
and the switch "on" and "off" positions if
not obvious.
OPERATION.
Where the oil shut-off valve from the oil
storage tank is located.
How to operate the thermostat, and
other related accessories.
How to operate the manual reset button
on the primary control, and especially
when not to push the reset button.
continued
Clean or replace air filter.
Check all dampers. Open closed dampers including registers in unused
rooms. Check system temperature rise. If temperature rise is too high,
speed up blower fan.
Check system temperature rise. Slow down blower fan if necessary.
Check supply air ductwork. Seal leaky joints and seams. Insulate
ductwork if necessary.
Increase "fan on" dipswitch settings on EFT if control has this option.).
Register air deflectors may help.
Check supply air ductwork. Seal leaky joints and seams. Insulate
ductwork if necessary.
31
Remedy
How and where to visually inspect the
venting system for leaks or other
problems.
How to inspect, clean and replace the
air filter, and other
maintenance procedures.
Who to call for emergency service and
routine annual service.
The terms and conditions of the
manufacturer's warranty
contractor's
30318 R4 9/9/2005
homeowner
and the
warranty.