Desa HCA-24-RFP, HCA-18-RFN, HCA-18-RFP, HCA-24-RFN Specifications, Wiring Diagram

SPECIFICATIONS

	HCA-24-RFN	HCA-24-RFP	HCA-18-RFN	HCA-18-RFP
	HCM-24-RFN	HCM-24-RFP	HCM-18-RFN	HCM-18-RFP
	HKE-24-RFN	HKE-24-RFP	HKE-18-RFN	HKE-18-RFP
Btu (Variable)	45,000/67,000	43,000/65,000	41,000/56,000	42,000/51,000
Type Gas	Natural Gas Only	Propane/LP Only	Natural Gas Only	Propane/LP Only
Ignition	Piezo	Piezo	Piezo	Piezo
Manifold Pressure	3.5" - 1.6"W.C.	10" - 6.3"W.C.	3.5" - 1.6"W.C.	10" - 6.3"W.C.
Inlet Gas Pressure (in. of water)
Maximum	10.5" W.C.	13" W.C.	10.5" W.C.	13" W.C.
Minimum*	5.0" W.C.	11" W.C.	5.0" W.C.	11" W.C.
Valve Operation	RF Millivolt	RF Millivolt	RF Millivolt	RF Millivolt
Orifice Size	#21	#42	#28	#45

* For purpose of input adjustment

WIRING DIAGRAM

REMOTE CONTROL (MILLIVOLT)

Outlet	Inlet	Piezo
Pressure	Pressure
Tap	Tap
		Pilot Tube

Pilot

Burner

Assembly

Local and	Gas Control
Remote Switch	Knob
POWER SUPPLY. PROVIDE
DISCONNECT MEANS AND
OVERLOAD PROTECTION AS
REQUIRED.

Pilot	Thermopile
	Leadwires
Adjustment
Screw

Figure 16 - Millivolt System Wiring Diagram

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