ECR EMI America Series Installation, Operation And Maintenance Manual page 26

Remote Thermostat Operation
FAN operation
The remote thermostat will control the call
for fan operation (on or off ) through the
low-voltage terminals "R" and "G". When the
remote thermostat connects "R" to "G" the fan
will energize. After the thermostat has been
satisfied and the call for heating or cooling
has been removed, the indoor fan will remain
on for an additional sixty (60) seconds. This
increases efficiency by pulling the remaining
energy from the unit.
Some thermostats are equipped with an
AUTO/ON fan switch. When this switch
is placed in the ON position the indoor fan
will run continuous. When the switch is in
the AUTO position the indoor fan will cycle
with the call for heating or cooling.
CACH/CAHH units only — The indoor
unit utilizes a two speed motor. For Remote
Thermostat Operation, fan speed selection
can be made through the DIP switch settings
located on the main control board. By set-
ting DIP switch #3 Remote Thermostat Fan
Speed Selection to ON, the fan speed will be
set to High. Switching to OFF, the fan speed
is set to Low.
Comfort where it counts
CACG/CAHG & CACH/CAHH
• Installation, Operation and Maintenance Manual •
(optional for CACH/CAHH) (continued)
COOLING operation
The remote thermostat will control the call
for cooling operation (on or off) through the
low-voltage terminals, R and Y.
After connecting the thermostat to the unit,
place the system switch in Cool mode.
• Adjust the set-point temperature below
the room temperature.
• The compressor and fan motors will start
and cooling will begin.
Next, place the set-point temperature above
the room temperature.
• The outdoor condenser will stop.
• The fan will operate as described in FAN
operation.
Once cooling has cycled off or following
a power outage, the compressor will not
start for at least three minutes (short-
cycle protection).
26
Air Handlers
NOTICE
P/N 240007756, Rev. A [051509]