Space Ray LTU Series Two Stage User 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.