8.0

InstallationoftheControls

(con’d)

8.3ELECTRICAL CONNECTION TO OPTIONAL CONTROLS

MAIN PCBOARD

9

8

7

6 OL 5 OC 4 I 3 2

J3 1

J1

1 4 7

2 5 8

3 6 9

VE0036A

0LI

PUSH-BUTTON SWITCHES

REAR VIEW

 

(5 switches maximum)

 

8.4ELECTRICAL CONNECTION TO THE FURNACE

010! WARNING

Never connect a 120-volt AC circuit to the terminals of the furnace interlock (standard wiring). Only use the low voltage class 2 circuit of the furnace blower control.

For a furnace connected to cooling system:

On some older thermostats, energizing the “R” and “G” terminals at the furnace has the effect of energizing “Y” at the thermostat and thereby turning on the cooling system. If you identify this type of thermostat, you must use the “alternate furnace interlock wiring”. An additional control relay will then have to be installed.

Standard furnace interlock wiring

Alternate furnace interlock wiring

W

R

G

Y

FOUR

 

 

 

WIRES

 

 

 

TWO WIRES

 

 

 

heating only

 

 

 

W

 

 

 

R

 

 

 

G

 

 

 

C

 

 

 

Y

 

 

 

THERMOSTAT

TERMINALS

HRV CONTROL CONNECTOR

J3

9 8 7 6 5 4 3 2 1

F F I OC OL Y R G B

 

 

 

 

Unit Control Module

 

 

 

 

9-PIN AMP PLUG

W

R

G Y

THERMOSTAT

J1

 

 

4 WIRES

 

 

TERMINAL

1

4

7

2 WIRES

 

 

 

2

5

8

 

 

 

 

 

 

heating only

 

 

wiring

3

6

9

 

 

 

 

 

 

 

 

 

 

 

 

nuts

 

 

 

W

 

 

RED

GRAY

 

BROWN

 

 

 

 

 

 

R

 

 

GREEN

 

 

 

 

 

NC

NO

 

 

 

 

 

 

 

G

 

 

 

COM

 

 

C

 

 

BLUE

 

 

 

 

 

 

 

 

 

 

 

 

 

Y

 

 

*FURNACE INTERLOCK

 

 

Y

 

 

 

 

RELAY

FURNACE

24-VOLT

TERMINAL BLOCK

TWO WIRES

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COOLING SYSTEM

FURNACE

24-VOLT

TERMINAL BLOCK 2 WIRES

COOLING SYSTEM

*FURNACE INTERLOCK RELAY, PART # 12658

VE0009A

24

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Image 24
Maytag HRV-210, ERV-210, HRV-150, ERV-150 Electrical Connection to Optional Controls, Electrical Connection to the Furnace

ERV-150, HRV-150, ERV-210, HRV-210 specifications

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