www.fmiproducts.com
112127-01C
34
serviCe Hints
When Gas Pressure is Too Low:
• pilot will not stay lit
• burners will have delayed ignition
• burner system will not produce specified
heat
• propane/LP gas supply might be low (pro
-
pane/LP units only)
You may feel your gas pressure is too low. If
so, contact your local natural or propane/LP
gas supplier.
Blue
Variable
Fan Switch
Fan Switch
(N.O.)
Green
White
On
110/115
V.A.C.
Blower
Motor
Black
Off
1
2
Black
sPeCiFiCations
SDVBND
• Rating: 21,000-30,000 Btu/Hr
• Gas Type: Natural Gas
• Manifold Pressure: 3.5" W.C.
• Minimum Inlet Supply Pressure: 5" W.C.
• Dimensions, (HxWxD):
27" x 21
1
/
2
" x 18" (68.6 x 54.6 x 45.7 cm)
SDVBPD
• Rating: 20,000-28,000 Btu/Hr
• Gas Type: Propane/LP Gas
• Manifold Pressure: 10" W.C.
• Minimum Inlet Supply Pressure: 11" W.C.
• Dimensions, (HxWxD):
27" x 21
1
/
2
" x 18" (68.6 x 54.6 x 45.7 cm)
WirinG diaGram
CAUTION: Label all wires
prior to disconnection when
servicing controls. Wiring errors
can cause improper and dan
-
gerous operation. Verify proper
operation after servicing.
teCHniCaL serviCe
You may have further questions about
installation, operation, or troubleshooting.
If so, contact FMI PRODUCTS, LLC at
1-866-328-4537. When calling please have
your model and serial numbers of your
heater ready.
You can also visit our web site at
www.fmiproducts.com
.
