BG801UH Installation Manual

ManualsBrandsBlueridge Manualsforced air80% AFUE 90,000 BTU Eep blower Upflow/Horizontal Furnace

Table Of Contents

507330-01BPage 18 of 33 Issue 1809

Removal of the Furnace from Common Vent

In the event that an existing furnace is removed from

a venting system commonly run with separate gas

appliances, the venting system is likely to be too large to

properly vent the remaining attached appliances.

Conduct the following test while each appliance is operating

and the other appliances (which are not operating) remain

connected to the common venting system. If the venting

system has been installed improperly, you must correct the

system as indicated in the general venting requirements

section.

CARBON MONOXIDE POISONING HAZARD

Failure to follow the steps outlined below for each

appliance connected to the venting system being

placed into operation could result in carbon monoxide

poisoning or death.

WARNING

The following steps shall be followed for each appliance

connected to the venting system being placed into

operation, while all other appliances connected to the

venting system are not in operation:

1. Seal any unused openings in the common venting

system.

2. Inspect the venting system for proper size and

horizontal pitch. Determine that there is no blockage,

restriction, leakage, corrosion, or other deciencies

which could cause an unsafe condition.

3. Close all building doors and windows and all doors

between the space in which the appliances remaining

connected to the common venting system are located

and other spaces of the building. Turn on clothes

dryers and any appliances not connected to the

common venting system. Turn on any exhaust fans,

such as range hoods and bathroom exhausts, so they

will operate at maximum speed. Do not operate a

summer exhaust fan. Close replace dampers.

4. Follow the lighting instructions. Turn on the appliance

that is being inspected. Adjust the thermostat so that

the appliance operates continuously.

5. After the burners have operated for 5 minutes, test for

leaks of ue gases at the draft hood relief opening.

Use the ame of a match or candle.

6. After determining that each appliance connected to

the common venting system is venting properly, (step

3) return all doors, windows, exhaust fans, replace

dampers, and any other gas burning appliances to

their previous mode of operation.

7. If a venting problem is found during any of the

preceding tests, the common venting system must be

modied to correct the problem.

Resize the common venting system to the minimum vent

pipe size determined by using the appropriate tables in

Appendix G. (These are in the current standards of the

National Fuel Gas Code ANSI 2223.1.

Gas Piping

If a exible gas connector is required or allowed by

the authority that has jurisdiction, black iron pipe shall

be installed at the gas valve and extend outside the

furnace cabinet. The exible connector can then be

added between the black iron pipe and the gas supply

line.

CAUTION

Gas Supply

1. This unit is shipped standard for left or right side

installation of gas piping (or top entry in horizontal

applications). Connect the gas supply to the piping

assembly.

2. When connecting the gas supply piping, consider

factors such as length of run, number of ttings, and

furnace rating to avoid excessive pressure drop. Table

6 lists recommended pipe sizes for typical applications.

FIELD

PROVIDED

AND INSTALLED

Left Side Piping

(Standard)

Right Side Piping

(Alternate)

GROUND

JOINT

UNION

DRIP LEG

MANUAL

MAIN SHUT-OFF

VALVE

AUTOMATIC

GAS VALVE

(with manual

shut-off valve)