Operating instructions

L8148-
L8124
ZONE 1
THERMOSTAT
R8230C
ZONE 1
CIRCULATOR
ZONE 2
CIRCULATOR
ZONE 3
CIRCULATOR
R8230C
R8230C
ZONE 2
THERMOSTAT
ZONE 3
THERMOSTAT
USE TYPE 105°C WIRE OR EQUIVALENT
AS MANY AS FOUR R8230C RELAYS MAY BE
POWERED BY THE L8148 OR L8124
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
GALAXY 20
HOT1
R845A RELAYS
ZONE 1
LOW VOLTAGE
GAS VALVE
PUMP OR VALVE ZONING OF WATER BOILERS
COMBINATION CONTROLS WITH T TV Z TERMINALS*
L8148-
L8124
V8043F
V8043F
V8043F
L8148-
L8124
CIRCULATOR
TO BURNER
CIRCUIT
LOW VOLTAGE
THERMOSTAT
USE TYPE 105°C WIRE OR EQUIVALENT
USE TYPE 105°C WIRE OR EQUIVALENT
TO ADDITIONAL
R845A RELAYS
FOR OTHER ZONES
ADD
JUMPER
AS
SHOWN
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
MAXIMUM OF 2 V8043’S ACROSS L8148 USE AN AT 720 TRANSFORMER
FOR EACH ADDITIONAL GROUP OF 3 OR LESS V8043’S
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
HOT