Space Ray LTU Series Two Stage - Manual (Page 20)

Form #42710010
-18- May 2013
D. D. D. D.
MANUAL SWITCH
MANUAL SWITCH MANUAL SWITCH MANUAL SWITCH C C C CONNECTIONS ONNECTIONS ONNECTIONS ONNECTIONS – – – – MULTIPLE HEATERS MULTIPLE HEATERS MULTIPLE HEATERS MULTIPLE HEATERS OPERATION OPERATION OPERATION OPERATION PER PER PER PER DUAL DUAL DUAL DUAL MANUAL SWITCH MANUAL SWITCH MANUAL SWITCH MANUAL SWITCH
Ground
N Neutral
L1 Hot (120V)
Fused
Disconnect
Switch
Continue To
Additional
Heaters
24 V Transformer
1.5 VA rating per relay
(field supplied) 24 V
Continue To
Additional
Heaters
Control Box
High Fire
Manual Switch
(field supplied)
Low Fire
Manual Switch
(field supplied)
RELAY BOARD
LO 24V HI
LO C HI
LO
FIRE HI
FIRE
C Hi Lo
RELAY BOARD
LO 24V HI
LO C HI
LO
FIRE HI
FIRE
C Hi Lo
3/16” Quick
Connect Terminals
1/4” Quick
Connect
Terminals
Relay Kit externally
Mounted
(PN 44195000)
Thermostat
Connection Block
Control Box
Note: Low Fire Switch MUST stay on during High Fire running.