IMPORTANT
To determine if a heater is single voltage (115VAC – manufactured before 4/27/04) or dual voltage (120/240VAC –
manufactured on or after 4/27/04), shut off power to the heater, remove the heater covers and open the control box.
DD
DD
uu
uu
aa
aa
ll
ll
VV
VV
oo
oo
ll
ll
tt
tt
aa
aa
gg
gg
ee
ee
CC
CC
oo
oo
nn
nn
tt
tt
rr
rr
oo
oo
ll
ll
BB
BB
oo
oo
xx
xx
..
..
Note 12-Pin Plug at left
rear of box. Dual voltage units (120/ 240VAC)
have been manufactured since April 27, 2004.
SS
SS
ii
ii
nn
nn
gg
gg
ll
ll
ee
ee
VV
VV
oo
oo
ll
ll
tt
tt
aa
aa
gg
gg
ee
ee
CC
CC
oo
oo
nn
nn
tt
tt
rr
rr
oo
oo
ll
ll
BB
BB
oo
oo
xx
xx
..
..
Single voltage
units (120VAC only) were manufactured prior
to April 27, 2004.
12-Pin Plug
See Pages 4-32 and 4-33 for Wiring Connection Diagrams.
See Page 7-1 for more information.
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