FIGURE 6A - With 120 VAC DIRECT SPARK IGNITION (DSI) SINGLE-STAGE CONTROLS
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FIGURE 6B - With 24 VAC DIRECT SPARK IGNITION (DSI) SINGLE-STAGE CONTROLS
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GND
(-)
(+120)
GGS
BK
BK
GGS
VR*
SW*
MV*
W
W
120 VAC DSI HEATER ELECTRICAL SUPPLY AND THERMOSTAT WIRING*
LEGEND
(+120) = 120 VAC Supply Voltage
(-
(-) = Supply Neutral
GND = Earth Ground
MV* = Mechanical Ventilation*
VR* = Ventilation Relay*
SW* = Ventilation Interlock Switch*
(normally opened)
GGS = Green Ground Screw
(inside control box)
W = White Wire – Neutral
BK = Black Wire – 120 VAC call for heat
Thermostat
Heater 1
Heater 2
GND
(+24)
GGS
BL
BL
GGS
VR*
SW*
MV*
24 VAC DSI SINGLE-STAGE HEATER ELECTRICAL SUPPLY AND THERMOSTAT WIRING*
LEGEND
(+24) = 24 VAC Supply Voltage
GND = Earth Ground
MV* = Mechanical Ventilation*
VR* = Ventilation Relay*
SW* = Ventilation Interlock Switch*
(normally opened)
GGS = Green Ground Screw
(inside control box)
BL = Blue Wire – 24 VAC call for heat
Thermostat
Heater 1
Heater 2
7.2 Electrical
Requirements
by Voltage and
Control Types
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applies to the unit being installed.
NOTES
common to FIGURES 6A, 6B, and 6C (page 12):
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E\DPHFKDQLFDODLUVXSSO\V\VWHP
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JUHHQJURXQGVFUHZRQKHDWHU
7KHKHDWHUFRQWUROLVH[WUHPHO\SRODULW\VHQVLWLYHDQGWKHKHDWHUZLOOF\FOHRQ
DQGRIIHUUDWLFDOO\LIWKHHOHFWULFDOVXSSO\LVQRWZLUHGFRDYHDTXDOL¿HG
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HOHFWULFDOVXSSO\SRODULW\LVFRUUHFW
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P/N 131793R11, Page 11