York YPAL 051, YPAL 061, YPAL 050, YPAL 060 manual Combustion Vent

Installation

FORM 100.50-NOM6 (1207)

6.The furnace and its individual manual shut-off valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 0.5 PSIG.

Disconnect gas piping from unit when leak testing at pressures greater than

0.5PSIG. Pressures greater than 0.5 PSIG will cause gas valve damage resulting in a hazardous condition. If gas valve is subjected to pressure greater than 0.5 PSIG, it must be replaced.

7.A 1/8 inch N.P.T plugged tapping, accessible for test gage connection, must be installed immedi- ately upstream of the gas supply connection to the furnace.

COMBUSTION VENT

The combustion vent assembly is shipped in the return air section of the unit. The combustion vent assembly must be mounted over the flue gas outlet fixed panel located to the right of the gas heat access door. Install as follows:

1.Remove the combustion vent assembly from the return compartment.

2.Remove the vertical row of six screws on either side of the flue gas outlet fixed panel.

3.Mount the combustion vent assembly over the flue

gas outlets and attach to the gas outlet fixed panel using the screws removed in step 2.

LD11766

FIG. 2-14 – COMBUSTION VENT

4.See Figure 2-14 for the proper orientation of the combustion vent. The internal baffle(s) must direct the flue gases upward.

46 JOHNSON CONTROLS