ECR EMI America Series Installation, Operation And Maintenance Manual page 25

Initial Start-Up — CACG/CAHG Units ONLY
WARNING
Electrical shock hazard
power to indoor and outdoor units is off
before proceeding.
5. Reconnect the wire to "Y" on the outdoor
unit to enable the compressor.
6. Turn on power to the indoor and outdoor
units.
Check condensate pump
operation
1. Remove an adjacent ceiling tile to access
the condensate pump cover panel.
2. Insert a squeeze water bottle nozzle
through the opening in the condensate
pump access panel and fill drain pan. See
Figure 31, Page 25.
3. Adding water will activate the float switch
and the pump. Water must flow regularly
with condensate pump energized. If water
does not, check the pipe slope or see if
there are any pipe restrictions.
4. Ensure that all covers, panels and filters
are in place and discharge louvers are
correctly positioned.
NOTICE
The unit is equipped with a safety switch
that will activate the pump when the
condensate reaches a critical level. The
safety switch will also de-energize the
compressor if the water level becomes
too high.
Check cooling operation
1. Cooling-only systems — Turn the system
power on and turn down the system set-
point to activate the compressor.
P/N 240007756, Rev. A [051509]
CACG/CAHG & CACH/CAHH
• Installation, Operation and Maintenance Manual •
Figure 31
— Turn off
Check heat pump operation
1.
2.
3.
Additional cassette units
1.
25
Air Handlers
(continued)
Checking condensate pump
operation
Heat pump systems — Turn up the
system setpoint to activate heat pump
(compressor) operation.
Place the system controls into heating
mode, with the setpoint 1°F above room
temperature (or meeting the require-
ments for 1st stage heating operation).
Verify compressor start up, noise, vibra-
tion, and overall system operation.
Next, alter the setpoint until the 2nd stage
of heat is called (this action is dependent
on both options and controls contained
in the system).
NOTICE
Second state heating requires both
optional electric heat and a means of
control.
Repeat the start-up procedure for all cas-
sette units in the system.
Made in the USA