Boyertown Regal Oil Furnace Nrg Max - Manual (Page 11)

11
ECM Motor Connections
\
The operation of the motor requires two main connections: the power input connector which is 120VAC,
and the signal input connector from a 24VAC thermostat. Figure 1 shows the location of the connectors
on the motor. When wiring your ECM, the pin
locations are crucial in assuring that no damage is
done to the motor or the control. The figures show
the pin locations for both connectors, when viewing
the motor as shown below
ECM REH/REL 750 Heating Speed Selection
Burner
Firing Rate Heat Switch
#1 Position
Heat Switch
#2 Position
Program Heating
Air Flow
0.60 GPH ON ON D 950 CFM
0.75 GPH OFF OFF A 1175 CFM
0.85 GPH ON OFF B 1325 CFM
ECM REH/REL 1000 Heating Speed Selection
Burner
Firing Rate Heat Switch
#1 Position
Heat Switch
#2 Position
Program Heating
Air Flow
1.00 GPH ON ON D 1575 CFM
1.25 GPH OFF OFF A 1925 CFM
ECM REH/REL 750 Cooling Speed Selection
AC
Tons Cool Switch
#1 Position
Cool Switch
#2 Position
Program Cooling
Air FlowY2
Cooling
Air FlowY1
Air Flow
“G”
4 Tons OFF OFF A 1600 CFM 1200 800
3 Tons ON OFF B 1200 CFM 900 600
2-1/2 Tons OFF ON C 1000 CFM 750 550
2 Tons ON ON D 800 CFM 600 550
ECM REH/REL 1000 Cooling Speed Selection
AC
Tons Cool Switch
#1 Position
Cool Switch
#2 Position
Program Cooling
Air Flow Y2
Cooling
Air FlowY1
Air Flow
“G”
5 Tons OFF OFF A 2000 CFM 1500 1000
4 Tons ON OFF B 1600 CFM 1200 800
3 Tons OFF ON C 1200 CFM 900 600
2-1/2 Tons ON ON D 1000 CFM 750 550
Signal Connector
Pin Description
1 C1
2 W/W1
3 C2
4 DELAY
5 COOL
6 Y1
7 ADJUST
8 OUT-
9 O
10 BK/PWM
11 HEAT
12 R
13 EM/W2
14 Y/Y2
15 G
16 OUT+ Power Connector
Pin Description
1
JUMPER PIN 1 TO PIN 2
2 120 VAC LINE INPUT
3 CHASSIS GROUND
4 AC LINE
5 AC LINE
Signal
connector
Power
connector