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Btu (Variable)
Type Gas
Propane/LP Only
Ignition
Manifold Pressure 3.5" - 1.6"W.C.
Inlet Gas Pressure (in. of water)
Maximum
Minimum*
Valve Operation
Orifice Size
* For purpose of input adjustment
Outlet
Pressure
Tap
Local and
Remote Switch
AND OVERLOAD PROTECTION AS REQUIRED.
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 FMI PRODUCTS, LLC's
web site at www.fmiproducts.com.
115481-01D
SPECIFICATIONS
HCA-24-RFN
HCA-24-RFP
HCM-24-RFN
HCM-24-RFP
HKE-24-RFN
HKE-24-RFP
45,000/67,000
43,000/65,000
Natural Gas Only Propane/LP Only
Piezo
Piezo
10" - 6.3"W.C.
10.5" W.C.
13" W.C.
5.0" W.C.
11" W.C.
RF Millivolt
RF Millivolt
#21
#42
WIRING DIAGRAM
REMOTE CONTROL
(MILLIVOLT)
Inlet
Pressure
Tap
Gas Control
Knob
POWER SUPPLY. PROVIDE DISCONNECT MEANS
Figure 16 - Millivolt System Wiring Diagram
www.fmiproducts.com
HCA-18-RFN
HCM-18-RFN
HKE-18-RFN
41,000/56,000
Piezo
3.5" - 1.6"W.C.
10.5" W.C.
5.0" W.C.
RF Millivolt
#28
Piezo
Pilot Tube
Pilot
Adjustment
Screw
HCA-18-RFP
HCM-18-RFP
HKE-18-RFP
42,000/51,000
Natural Gas Only
Piezo
10" - 6.3"W.C.
13" W.C.
11" W.C.
RF Millivolt
#45
Pilot
Burner
Assembly
Thermopile
Leadwires
15
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