16
PREMIER E SERIES DUAL CAPACITY INSTALLATION AND MAINTENANCE MANUAL
Microprocessor
Control Operation
Unit Electrical
Data
INSTALLATION
Position the thermostat subbase against the
wall so that it is level and the thermostat wires
protrude through the middle of the subbase.
Mark the position of the subbase mounting
holes and drill holes with a 3/16" bit. Install
supplied anchors and secure base to the wall.
Thermostat wire must be 8-conductor 18 AWG
wire. Strip the wires back 1/4" (longer strip
lengths may cause shorts) and insert the
thermostat wires into the Premier E connector
as shown in Figure 14. Tighten the screws to
insure tight connections. The thermostat has
the same type connectors, requiring the same wiring. See instructions enclosed in the thermostat for
detailed installation and operation information.
NOTE:
DIP switch SW2-#8 is required to be in the OFF position for the Premier E control to
recognize the 24VAC thermostat inputs. SW2-#8 must be ON when using the TA32E12
thermostat. The second stage compressor wire must be installed between the unit and the thermostat
for proper control operation.
HEATING OPERATION
Heat, 1st Stage (Y1)
The fan motor is started on low speed immediately; the first loop pump is energized 5 seconds
after the “Y1” input is received, and the compressor is energized on low capacity 10 seconds after the
“Y1” input; The fan is switched to medium speed 15 seconds after “Y1” input and the hot water pump
is cycled 30 seconds after the “Y1” input.
Heat, 2nd Stage (Y1,Y2)
The compressor is de-energized immediately; the second loop pump is energized 5 seconds after
the “Y2” input; and the hot water pump is cycled 30 seconds after the “Y2” input. The fan changes to
high speed 45 seconds after the “Y2” input and the compressor is energized on high capacity 60
seconds after the “Y2” input.
Heat, 3rd Stage (Y1,Y2,W)
The hot water pump is de-energized which directs all heat to satisfy the thermostat. The first stage
of resistance heat is energized 10 seconds after “W” input, and with continuous 3rd-stage demand, the
additional stages of resistance heat engage sequentially every 5 minutes.
Electronic
Thermostat
R
Y1
C
W
O
G
L1
24VAC
(Hot)
24VAC
(Common)
Compressor
(1
st
Stage)
Aux. Heat
Reversing
Valve
Blower
Relay
System
Monitor
Microprocessor Controller
Thermostat Connection
Y2
Compressor
(2
nd
Stage)
Figure 14 - Thermostat Wiring
Compressor Fan Total Min. Residential*
Model Rated Voltage Motor Unit Circuit
Max. Max. HACR
Voltage Min./Max. MCC RLA LRA FLA FLA (Res.) Amp.(Res.) Fuse Breaker
E036 208-230/60/1 197/254 19.5 12.5 66.0 4.0 22.3 25.4 35 35
E048 208-230/60/1 197/254 28.0 17.9 96.0 4.0 27.7 32.2 50 50
E048** 208-230/60/1 197/254 28.0 17.9 96.0 7.0 30.7 35.2 50 50
E060 208-230/60/1 197/254 38.5 24.7 130.0 7.0 37.5 43.6 60 60
E072 208-230/60/1 197/254 41.0 26.3 130.0 7.0 39.1 45.7 70 70
*Includes 5.4 amperage allowance for source side loop pump (up to 1/2 H.P.) and 0.4 amperage allowance for
desuperheater circulating pump operation.
Always refer to unit nameplate data prior to installation.
HACR circuit breaker in United States only. All fuses are class RK-5.
**With optional 1 HP ECM2 Motor.