Lennox International Inc GSR21Q, GSR21V manual 659,&,1*,/75, 3DJH6, with throw-awaytype filters

THERMOSTATS

FIGURE3

7- On Robertshaw 7200 gas valve, depress lever on gas control and move to ON and release. For White Rodgers 36E gas valves, move switch to ON.

8- Replace unit access panel.

9- Turn on all electrical power to unit.

10- Set thermostat to desired setting. See figure 3.

11- If the furnace will not operate, follow the instructions “To Turn Off Gas To Unit” and call your service techni- cian or gas supplier.

B-To Turn Off Gas To Unit

SHUTMANUALGAS--OFFGRODMINVALVEPIPINGUNIONJOINTGASVALVE

DOWNFLOWGASCONNECTOR*APPLICATION

GAS PIPI G

HORIZONTALJOINTGRODGASUNAPPLICATIONIONVALVESHUTMANUAL--OFFREARMAINVALVEUNITPANEL

GAS	FIGURE5
CONNECTOR*		*Gas connector may be
		used for Canadian
		installation if acceptable
		by local authority having
6(59,&,1*),/7(5		jurisdiction.

1- Set thermostat to lowest setting. See figure 3.
2- Turn off all electrical power to unit if service is to be
			Inspect and clean air filters each month. Filters must
	performed. See figure 4.
			be cleaned when dirty to assure proper furnace op-
3- Remove heat section access panel.			eration and maintain efficiency.
4- On Robertshaw 7200 gas valve, depress lever on			A-Cleaning Reusable Foam Filter
	gas control and move to OFF and release. For White		1-		Turn off electrical power to furnace.
	Rodgers 36E gas valves, move switch to OFF.			2- Remove blower access panel. Wait for blower to stop.
5- Replace unit access panel.			3-		Remove filter by sliding up and out of channel.
			4-		Wash filter with water and a mild detergent. For in-
					creased efficiency, filter media should be sprayed
					with Filter Handicoater when dry. Filter Handicoater
	FOR UNIT TO FIGURE4				is RP products No. 418 and is available as Lennox
	OPERATE DISCONNECT				part No. P-8-5069. If replacement filters is needed,
	SWITCH MUST
					use Lennox part no. P-8-7831 for 20” x 25” (508 x
	BE IN “ON” POSITION
					635mm) filter.
	TYPICAL		5-		Reinstall filter. Slide filter into top channel and drop
	FUSE/DISCONNECT				into lower channel.
	SWITCH BOX MOUNTED
	ON FURNACE				IMPORTANT-Do not replace foam reusable filters
					with throw-away type filters.
		3DJH￿6-
					Replace blower access panel.