Delta PG PLUS-25 Operations Instructions download pdf (Page 17)

11

Combustion Air and Venting

Removal of an Existing Boiler f rom a

Common Vent System

F o r installations in which the PERFOR-

MANCE PLUS is replacing an existing

b o i l e r / hot water h e a t e r system, which

was connected to a common vent system

with other appliances, the following steps

shall be conducted with each re m a i n i n g

appliance connected to the common vent-

ing system:

1. Any unused openings in the common

venting system must be sealed.

2. A visual inspection of the venting sys-

tem must be conducted for proper siz-

ing and horizontal pitch. The inspec-

tion should ensure no blockage or

restriction is within the vent system,

and there is no leakage, corrosion or

other items, which could cause an

unsafe condition.

3. To adequately test the venting system,

close all exterior doors and windows

and all doors between the area contain-

ing the remaining appliances connected

to the common vent system and other

areas of the building. Turn on any

clothes dryers and any other gas appli-

ance not connected to the common vent

system. Turn on all exhaust fans, i.e.

range hoods and bathroom exhaust

fans, preferably at maximum speed.

Close any fireplace dampers.

4. Place in operation the first appliance

being inspected that is connected to the

common vent system. The remaining

appliances should not be in operation.

Follow the appliance’s lighting instruc-

tions and adjust the thermostat to allow

the appliance to operate continuously.

5. Test for spillage at the draft hood relief

opening after 5 minutes of main burner

operation. Spillage can be detected

using the flame of a match or candle or

with smoke from a cigarette.

6. Once it has been determined that each

remaining appliance connected to the

common vent system is properly vent-

ed, return doors, windows, exhaust

fans, fireplace dampers and any operat-

ing gas appliance to their previous con-

dition.

Should any improper operation of the common

venting system be detected in the outline test,

the condition should be corrected so the vent

system conforms with the National Fuel Gas

Code, NFPA 54/ ANSI Z223.1 - latest edition.

Canadian installations must conform with

B149.1 or 149.2 Installation Code.

BEST PRACTICES

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 75 76

Comments to this Manuals

No comments