Rasmussen RPK3-N Assembly, Installation And Operation Instructions

Assembly, Installation, and Operation Instructions for RPK3-N/P for use with 15" to 30" F, FX, CS
ATTENTION! READ INSTRUCTIONS CAREFULLY BEFORE ASSEMBLY.
Required Tools and Materials: Adjustable Wrench, Pipe Wrench, Screw Driver, Phillips Screw Driver, Pipe sealing
compound (only required if fittings not already prepared with pre-wrapped Teflon thread tape).
RPK3 Parts List:
(Note: Assembly of this accessory also requires fittings included with the Burner Pan)
All Models:
• Valve
• Pilot Thermogenerator with
pilot tubing and thermopile
leads.
• Pilot Support bracket
• Heat Shield
Suggested Firebox Layout and Required Parts: Pilot Control Valves are adversely effected by heat. The best
protection is afforded by placing safety control valve assembly outside the firebox (Figure 1). If the valve is placed
inside firebox, it must be placed as far forward and to the side of the burner pan as possible (Figure 2).
NOTE: If it is not possible to enclose the control valve inside a separate vault the valve must be shielded from heat
and fire. Use the provided Heat Shield and position the valve to prevent direct heat radiation to the control valve.
Heat shields can also be constructed of brick and/or metal with fiberglass insulation material. The design of the
shield should prevent direct heat radiation to the control valve.
Valve Vault
(Min: 12x8x8)
Conduit for Pilot
Tubing and Wire
FIREBOX
1/2" Threaded Black Pipe
(Gas Supply)
Figure 1
ASSEMBLY:
(Note: If fittings do
not come pre-wrapped with
Teflon threaded tape, pipe
compound must be applied to
the non-flared input threads).
STEP ONE: Burner Pan Fittings
(Figure 3).
1. Ensure that Burner Plug
(provided with Burner Pan) is
inserted into opposite end of
burner pipe (see Burner Pan
Instructions) and wrench tighten.
2. Thread the NAT Gas or LP Gas
Burner Pan Inlet Assembly
into burner pan.
• Natural Gas Burners (F, FX, CS) Insert the appropriate Burner Orifice (see chart at Figure 3) into the Internally
Tapped 3/8 Flared x 3/8 MIP Elbow and wrench tighten. (Orifice and Fitting are provided with Burner Pan).
• Propane Gas Burners (FA, FA-X, CA) requires MA-2 Air Mixer Assembly (see Figure 3). Insert the appropriate
Burner Orifice (see chart at Figure 3) into the Internally Tapped 3/8 Flared x 3/8 MIP Elbow and wrench tighten.
Thread the Air Mixer onto the 3/8 Flared x 3/8 MIP Elbow and wrench tighten with air intake holes positioned
horizontally (parallel to the floor).
RPK3-N/P
(Natural Gas) or FA, FA-X, CA (Propane Gas) Burners
• 10" Aluminum Connector
• 20' length wire (20 AWG
Type CL2)
• Fittings:
1 3/8 Flared x 3/8 MIP
1 3/8 Flared x 3/8 FIP
elbow
RPK3 Valve Placement
Wire from
Options
Valve to
(as viewed from above)
Controller
Forward and to the Side
Gas Supply
of the burner pan.
Shut-Off Valve
Burner Plug
Burner Orifice
18"
24"
30"
Figure 3
12028 E. Philadelphia St. Whittier , CA 90601 U.S.A.
(562) 696-8718 FAX (562) 698-3510
info@rasmussen.biz
1 3/8 MIP x 3/8 FIP elbow
Fasteners
• :
1 10-32 x 3/8 nut
-32 x 3/8 bolts
3 10
Valve Assembly
outside firebox.
Burner Pan Tube
NAT LP
Orifice
#36 #53
#29 #49
#29 #45
Air Mixer
1
www.rasmussen.biz
LP Gas Models ("-P")
•
3 Burner orifices (#45, #49
and #53)
•
1 1/2 x 3/8 Air Mixer
Burner Pan
RPK3 Gas
Valve
Figure 2
NAT GAS BURNER
INLET ASSEMBLY
Burner orifice
Internally Tapped 3/8
flared x 3/8 MIP elbow
LP GAS BURNER INLET
ASSEMBLY (MA-2)
Burner orifice
Internally Tapped 3/8
flared x 3/8 MIP elbow
REV: RPK3 0608
Gas Supply
Shut-Off Valve