Space Ray ETS Series - Manual (Page 37)

Form 43343300
-36- May 2013
C. C. C. C.
LOW
LOW LOW LOW VOLTAGE ( VOLTAGE ( VOLTAGE ( VOLTAGE (24 24 24 24V) THERMOSTAT CONNECTIONS V) THERMOSTAT CONNECTIONS V) THERMOSTAT CONNECTIONS V) THERMOSTAT CONNECTIONS – – – – SINGLE HEATER PER THERMOSTAT SINGLE HEATER PER THERMOSTAT SINGLE HEATER PER THERMOSTAT SINGLE HEATER PER THERMOSTAT
42874990 Rev. C 1/2012
NOTES:
1. If any of the original wire
as supplied with the
appliance must be replaced,
it must be replaced with
wiring material having a
temperature rating of least
105 deg. C. (18 AWG-
UL/CSA 600V Type TEW.
2. When connecting the
supply circuit to the heater,
wiring material having a
minimum size of 14 AWG
and a temperature rating of
at least 90 deg. C shall be
used.
BL BL
BK BK
BK
BK
BK
W
BK
W
GAS VALVE
AIR SWITCH
TRANSFORMER 120V
PRIMARY 24V
SECONDARY
AMBER
GREEN
RED
HIGH VOLTAGE
CABLE
ELECTRODE
GAP 3/16”
CONTINUE TO
ADDITIONAL
HEATERS
NEUTRAL
120V GROUND
L1
L2
TERMINAL
BLOCK
FACTORY WIRING
FIELD WIRING
CONTROL CABINET
MONITORING LIGHTS
FUSE 2A
JUNCTION BOX
SJO CABLE
W R
BK
LOW VOLTAGE
THERMOSTAT (24V)
FIELD INSTALLED
RELAY KIT PART
NO. 43274010
R
W
3 4 5
1
DRAFT
INDUCER
MOTOR
BK
BK
BK
W
W
R
R
BK W
G
IGNITION MODULE
GND
(BURNER)
25V
Bloc d'allumage
VALVE VALVE
Order 24V Relay Kit (Part No. 432740 Order 24V Relay Kit (Part No. 432740 Order 24V Relay Kit (Part No. 432740 Order 24V Relay Kit (Part No. 4327401 1 1 10) for Low Voltage (24V) thermostat connection. 0) for Low Voltage (24V) thermostat connection. 0) for Low Voltage (24V) thermostat connection. 0) for Low Voltage (24V) thermostat connection.
NOTES: NOTES: NOTES: NOTES:
1. If any of the original wire as supplied with the appliance must be replaced, it must be replaced with wiring
material having a temperature rating of at least 105ºC. (18 Ga. CSA 600V Type TEW)
2. When connecting the supply circuit to the heater, wiring material having a minimum size of 14 AWG and a
temperature rating of at least 90ºC shall be used.
3. A replaceable 2-amp fuse (1-1/4” long) is fitted to the terminal block located inside the junction box
assembly.
D. D. D. D.
LLLLOW
OW OW OW VOLTAGE ( VOLTAGE ( VOLTAGE ( VOLTAGE (24 24 24 24V) THERMOSTAT CONNECTIONS V) THERMOSTAT CONNECTIONS V) THERMOSTAT CONNECTIONS V) THERMOSTAT CONNECTIONS – – – – MULTIPLE HEATERS MULTIPLE HEATERS MULTIPLE HEATERS MULTIPLE HEATERS PER THERMOSTAT PER THERMOSTAT PER THERMOSTAT PER THERMOSTAT
Ground
Neutral
Hot (120VAC)
Fused
Disconnect
Switch
Service
Switch
Heater 1
Continue To
Additional
Heaters
Service
Switch
Heater 2
Low Voltage
Thermostat (24V)
coil
C
R
G
NO
Fan Center Relay Part No. 30169000
Contact Rating: 120V, 40VA, 12A
(maximum of 6 heaters per relay)