Munchkin 399M Instructions d'exploitation télécharger pdf (Page 41)

GAS-FIRED BOILER Boiler Manual

PART 7: VENTING, COMBUSTION AIR & CONDENSATE REMOVAL

(CONTINUED)

40 or 80 pipe. FOAM CORE PIPING IS NOT

APPROVED.

2. Remove all burrs and debris from joints and

fittings.

3. All joints must be properly cleaned, primed,

and cemented. Use only cement and primer

approved for use with the pipe material.

Cement must conform to ASTM D2564 for

PVC or CPVC pipe and ASTM D2235 for ABS

pipe.

4. Horizontal lengths of exhaust vent must slope

back towards the boiler not less than ¼" per

foot to allow condensate to drain from the

vent pipe. If the exhaust pipe must be piped

around an obstacle that results in the creation

of a low point, condensate will collect in this

low point and form a blockage. This

condensate must be drained away using a

field-installed condensate drain assembly as

shown.

5. All piping must be fully supported. Use pipe

hangers at a minimum of 4 foot intervals to

prevent sagging of the pipe where

condensate may form.

6. Do not use the boiler to support any piping.

7. A screened straight coupling is provided with

the boiler for use as an outside exhaust

termination.

8. A screened inlet air tee is provided with the

boiler to be used as an outside intake

termination.

9. The following information on Table 7.7 are

optional intake air/exhaust vent terminations

available from Heat Transfer Products, Inc.

G. HEATER REMOVAL FROM A COMMON

VENT SYSTEM

At the time of removal of an existing heater, the

following steps shall be followed with each

appliance remaining connected to the common

venting system placed in operation, while the

other appliances remaining connected to com-

mon venting system are not operating.

1. Seal any unused openings in the common

venting system.

2. Visually inspect the venting system for proper

size and horizontal pitch to determine if there

is blockage, leakage, corrosion or other defi-

ciencies that could cause an unsafe condition.

3. If practical, close all building doors, windows

and all doors between the space in which the

appliance remains connected to the common

venting system located and other spaces in

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,

at maximum speed. Do not operate a summer

exhaust fan. Close all fireplace dampers.

4. Place in operation the appliance being

inspected. Follow the lighting instructions.

Adjust the thermostat so the appliance will

operate continuously.

5. Test for spillage at the draft hood relief

opening after 5 minutes of main burner

operation. Use the flame of a match or candle

or smoke from a cigarette.

6. After it has been determined that each

appliance remaining connected to common

venting system properly vents when tested as

outlined, return doors, windows, exhaust fans,

fireplace dampers and any other gas burning

appliance to their previous condition of use.

7. Any improper operation of the common

venting system should be corrected so the

installation conforms with the National Fuel

Gas Code, ANSI Z223.1. When resizing any

portion of the common venting system, the

common venting system should be resized to

approach the minimum size as determined

using the appropriate tables in Appendix G in

the National Fuel Gas Code , ANSI Z 223.1

WARNING

All joints of positive pressure vent systems

must be sealed completely to prevent leakage

of flue products into the living space.

Description Stock Code

2" PVC Concentric Vent Termination Kit KGAVT0501CVT

3" PVC Concentric Vent Termination Kit KGAVT0601CVT

2" Stainless Steel Vent Termination Kit V500

3" Stainless Steel Vent Termination Kit V1000

4" Stainless Steel Vent Termination Kit V2000

Table 7.8: Vent Termination Kits

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 75 76

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Munchkin 399M Instructions d'exploitation Page 41

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