Superior DT-400CMP Connecting Gas Line, FBK-250Blower Kit See Figure, Gas Connection, ³ NPT x ³

FBK-250 Blower Kit (See Figure 46)

An electrical outlet box is provided for the instal- lation of the FBK-250forced air blower kit. Electrical power must be provided to this box to operate these blowers. Install the blower kit according to the installation instructions pro- vided with the kit.

1. Route a 3-wire, 120Vac 60Hz 1ph power line to the lower right rear corner of the appliance.

2. Remove the outlet box by removing two screws.

3. Connect the black supply wire to both of the outlet box' pigtail leads and the white supply wire to the common terminal of the outlet box as shown in Figure 46.

4. Connect the ground supply wire to the outlet's green ground screw.

5.Reinstall the outlet box.

6. Insert the kit-provided module plug into the top outlet.

(The bottom outlet is unused on millivolt units, while the burner control circuit plugs into the bottom outlet on electronic units.)

7. Insert the blower plug into the module's receptacle.

Electronic Wiring Diagram (Honeywell)

Showing the Blower Wiring for the Optional

FBK-250 Kits

1.If any of the original wire as supplied must be replaced,

1.it must be replaced with Type AWM 105° C – 18 GA. wire.

2.120V, 60Hz – Less than 3 amps.

*Leave the ON/OFF switch, which is integral

*ON/OFF Switch (Integral with the gas valve, in the ON position. with Gas Valve)

Step 6. CONNECTING GAS LINE

Make gas line connections. All codes re- quire a shut-off valve mounted in the supply line. Figure 47 illustrates two methods for connecting the gas supply. The flex-line method is acceptable in the U.S., however, Canadian requirements vary depending on locality. Installation must be in compliance with local codes.

These appliances can be equipped with a gas flex line for use (where permitted) in connect- ing the unit to the gas line. The gas flex line (not provided) is to aid in attaching the direct vent appliance to the gas supply. The gas flex line can only be used where local codes per- mit. See Figure 47 for flex line description. The flex line is rated for both natural and propane gas. The optional gas flex line is equipped with a manual shut off valve.

Open the control compartment access panel (Figure 48) by actuating the spring-loaded magnetic catches securing the panel, gently depressing the outer top corners of the panel until the catches "pop" the panel free, allowing it to swing out and down to open.

The millivolt control valve has a ³ ⁄ ₈ " (10 mm) NPT thread inlet port.

Secure all joints tightly using appropriate tools and sealing compounds (ensure pro- pane resistant compounds are used in pro- pane applications).

Turn on gas supply and test for gas leaks using a soapy water solution. Never use an open flame to check for leaks.

Open the lower panel or louver assembly by gently depressing the outer top corners of the panel until the catches “pop” the panel free, allowing it to swing out and down to open.

Control

Valve

Lower Control

Compartment

Door

Opening Control Compartment Door

Figure 48

A. Mix a 50% dish soap, 50% water solution.

B. Light the appliance (refer to the lighting instructions provided in the Homeowner's Care and Operation Instructions).

C. Brush all joints and connections with the soapy water solution to check for leaks. If bubbles are formed, or gas odor is detected, turn the gas control knob to the “OFF” position. Either tighten or refasten the leaking connec- tion and retest as described above.

D. When the gas lines are tested and leak free, observe the individual tongues of flame on the burner. Make sure all ports are open and pro- ducing flame evenly across the burner. If any ports are blocked, or partially blocked, clean out the ports.

				Outlet Box Green
	Gas Valve		PILOT	Ground Screw
				G
			ASSEMBLY		120
		IGNITER
				W
BK				BK	VAC.

ROptional FBK-250

ModuleBL

OPT
BLOWER	G

	White Wire
	To Opposite
	Side
W	Transf.
B
G	120 V.
Hot side of Outlet
BL	24 V
	R
WH	BK
OPTIONAL APPLIANCE-MOUNTED ON/OFF SWITCH
OR OPTIONAL WALL SWITCH
OR OPTIONAL THERMOSTAT
OR OPTIONAL REMOTE RECEIVER
Factory Wired	Field Wired

Schematic Representation Only

Figure 46

		Optional Gas Flex Line Connector
Gas		³ " NPT x ³	¹ " x ³ " Flare
		Flare Fitting	Shut-Off Valve
Valve
		³ " Flex Tubing
			Gas
			Stub
		¹	x ³ "
³	" Nipple	Reducer

³ " Union

³ " Close Nipple

³" Shut-Off Valve

Figure 47 - GAS CONNECTION

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 21