TRANSFORMER WIRING
120 VAC WIRING
BE/<ACHGCBJ8EGBG;8HA<G6BAA86GG;8C4<E
B95?46>J<E8FGBG;8U&VBE;BG?8:B9G;8CBJ8EFHC
C?LBAA86GG;8 E87J;<G8J<E84A7 G;8J;<G8J<E8GB
G;8U+8GVBEA8HGE4??8:B9G;8CBJ8EFHCC?LGG46;G;8
J<E8AHGGBG;8E87J<E8There should be no connec-
tion to the red wire for 120 VAC operation.
120V HEATER
SUPPLY
SIDE
RETURN
or
NEUTRAL
HEATER
6 WIRES
L1
HOT
RED
BLACK BLACK
BLACK
GREEN GREEN
WHITE WHITE
RED/WHITE
240V HEATER
HEATER
6 WIRES
GROUND
L1
L2
BLACK
BLACK
RED
RED
RED/WHITE
HOT
HOT
BLACK
GREEN GREEN
WHITE
SUPPLY
SIDE
NOTE: #ACHGCBJ8EGBG;8;84G8EBE/64A58FHCC?<879EB@G;8?B47CH@CF<78B9G<@86?B6>BE
7<E86G?L9EB@G;8! #CBJ8EFBHE68 It is required that full-time power be supplied to the heater from the
GFCI power source, and that the heater be controlled by the fireman’s switch connection or using a two
or three-wire remote. See pages 38-40. #9HF<A:4FJ<G6;87! #CBJ8EFBHE68G;8;84G8ECBFGCHE:89HA6
G<BAJ<??585LC4FF8747I8EF8?L49986G<A:;84G8EBC8E4G<BA4A7?<98
NOTE: #9G;8GE4AF9BE@8EXFCE<@4ELF<78<FJ<E879BE/4A7/<F4CC?<8774@4:8GBG;8GE4AF
9BE@8E4A7*5B4E7@4LE8FH?G,H6;74@4:8F4E8ABG6BI8E87HA78E@4AH946GHE8EXF?<@<G87J4EE4AGL
WARNING: DO NOT attempt to operate the
heater with 208 VAC supply voltage.
240 VAC WIRING
BE/<ACHGCBJ8EGBG;8HA<G6BAA86GG;8C4<E
B95?46>J<E8FGBG;8U&VBE;BG?8:B9G;8CBJ8EFHC
C?LBAA86GG;8E87J;<G8J<E84A7G;8E87J<E8GBG;8
U&VBEF86BA7;BG?8:B9G;8CBJ8EFHCC?LGG46;G;8
J<E8AHGGBG;8J;<G8J<E8There should be no con-
nection to the white wire for 240 VAC operation.
-;8;84G8E@HFG588?86GE<64??L:EBHA7874A75BA787<A466BE74A68J<G;?B64?6B78FBE<AG;845F8A68B9?B64?
6B78F J<G; G;8 ?4G8FG 87<G<BA B9 G;8 (4G<BA4? ?86GE<64? B78(,#( * 4A474 4A47<4A ?86GE<64?
B78,*4EG4A7*4EG