17
Operating Instructions and Owner’s Manual
Enerco | Heatstar ER2STG Tube Series Heater
THERMOSTAT CONNECTION
24V
W1
W2
LOW HEAT
HIGH HEAT
R
W1
W2
TUBE BURNER CONNECTIONS
INTERNAL THERMOSTAT WIRING
SECTION 7
Wiring
Heaters are normally controlled by thermostats. Heaters must be
electrically grounded in accordance with the National Electrical
Code, ANSI/NFPA 70 or current Canadian Electrical Code, CSA
C22.1.
•
If any of the original wire as supplied with the appliance must
be replaced, it must be replaced with wiring material having a
temperature rating of at least 105
°
C and rated for 600V
•
Each burner must be electrically grounded in accordance with
the National Electric code ANSI/NFPA-70- latest version
NOTE:
• Connecting the top two terminals of the bushing
located at the bottom left of the back of the
burner box will give you low fire
• Connect all three of the terminals for high heat
L1
N
Earth Ground
GV
M
T1
PCB1
S1/240
S1/120
N
L1
S2/FS
PSW
W
MV1
GRND
blk
wh
blk
grn
Pressure Switch
24 V
SW1
C1
blk
wh
gr
n
Primar
y
Secondar
y
FC+ FC-
LED
R
F2/IND
F1/120
red
To Thermostat
24V W1 W2
grn
red
wh
grn
brn
wh
re
d
re
d
Flame Sense
Burner
HSI
wh
wh
blk
wh
wh
yello
w
SW1 - Panel Interlock Switch
C1 - 1.5 ufd @ 450 volts
Wire is AWG18 Stranded @ 600 volts - 105 degrees C
Crimp Caps are # CE5 - 105 degrees C
(Neutral Connection Not Needed in this Configuration)
blue
24 VAC
blk
grn
WIRING DIAGRAM
BURNER BOX CONNECTION
INTERNAL THERMOSTAT WIRING
FIGURE 18A
FIGURE 18B