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18-CD19D7-22

13

Installer’s Guide

GENERAL VENTING INSTRUCTIONS

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.

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 venting system.

2. Inspect the venting system for proper size and 

horizontal pitch, as required in the National Fuel Gas 
Code, ANSI Z223.1/NFPA 54 or the CAN/CGA B149 
Installation Codes and these instructions.  Determine 
that there is no blockage or restriction, leakage, 
corrosion and other deficiencies which could cause an 
unsafe condition.

3. As far as practical, close all building doors and 

windows and all doors between the space in which the 
appliance(s) connected to the venting system are 
located and other spaces of the building.

4. Close fireplace dampers.

5. Turn on clothes dryers and any appliance not 

connected to the venting system. Turn on any exhaust 
fans, such as range hoods and bathroom exhausts, so 
they are operating at maximum speed.  Do not operate 
a summer exhaust fan.

6. Follow the lighting instructions. Place the appliance 

being inspected into operation. Adjust the thermostat 
so appliance is operating continuously.

7. If improper venting is observed during any of the above 

tests, the venting system must be corrected in 
accordance with the National Fuel Gas Code, 
ANSI Z221.1/NFPA 54 and/or CAN/CGA B149 
Installation Codes.

8. After it has been determined that each appliance 

connected to the venting system properly vents where 
tested as outlined above, return doors, windows, 
exhaust fans, fireplace dampers and any other gas-fired 
burning appliance to their previous conditions of use.

WARNING

!

TABLE 8

CABINET

WIDTH

RETURN

DUCT

WIDTH

FILTER ACCESS

OPENING -

DIMENSION "A"

FILTER ACCESS

OPENING -

DIMENSION "B"

14-1/2"

13-1/4"

12"

14"

17-1/2"

16-1/4"

15"

14"

21"

19-3/4"

19-1/2"

14"

24-1/2"

23-1/4"

22"

14"

VENT PIPING

These furnaces have been classified as Fan-Assisted Com-
bustion System, Category I furnaces under the “latest
edition” provisions of ANSI Z21.47 and CAN/CGA 2.3
standards.  Category I furnaces operate with a non-positive
vent static pressure and with a flue loss of not less than 17
percent.

NOTE: If desired, a side wall termination can be accom-
plished through the use of an “add-on” draft inducer.  The
inducer must be installed according to the inducer
manufacturer’s instructions.  Set the barometric pressure
relief to achieve -0.02 inch water column.

NOTE: When the downflow furnace is vented through the left
side of the furnace cabinet using the provided cutout, Type B
vent piping must be used.

The furnace shall be connected to a factory built chimney or
vent complying with a recognized standard, or a masonry or
concrete chimney lined with a lining material acceptable to
the authority having jurisdiction.

WARNING

!

Furnace venting into an unlined masonry chimney or
concrete chimney is prohibited.  Failure to follow this
warning could result in property damage, personal injury,
or death.

VENTING INTO A MASONRY CHIMNEY

If the chimney is oversized, the liner is inadequate, or flue-
gas condensation is a problem in your area, consider using
the chimney as a pathway or chase for type “B” vent or flex-
ible vent liner.  If flexible liner material is used, size the vent
using the “B” vent tables, then reduce the maximum capacity
by 20% (multiply 0.80 times the maximum capacity).

Internal Masonry Chimneys

Venting of fan assisted appliances into a lined, internal
masonry chimney is allowed only if it is common vented with
at least one natural draft appliance; 

OR

, if the chimney is

lined with type “B”, double wall vent or suitable flexible liner
material (See Table 9, page14).

WARNING

!

The chimney liner must be thoroughly inspected to insure
no cracks or other potential areas for flue gas leaks are
present in the liner.  Liner leaks will result in early deteriora-
tion of the chimney.

Failure to follow this warning could result in carbon monox-
ide poisoning or death.

NOTE: The following section does not apply if
BAYVENT800B (Masonry Chimney Vent Kit) is used.  All
instructions with the kit must be followed.  Masonry Chim-
ney Kit BAYVENT800B may be used with these furnaces
(UPFLOW model furnaces ONLY) to allow venting into an
external masonry chimney. Refer to the BAYVENT800B
Installer’s Guide for application requirements.

TABLE 9

MASONRY CHIMNEY VENTING

Tile Lined Chimney

Chimney Lining

Type Furnace

Internal

External

“B” Vent

Flexible

Metal Liner

Single Fan

Assist

No

No

Yes

Yes*

Fan Assist

+

Fan Assist

No

No

Yes

Yes*

Fan Assist

+

Natural

Yes

No

Yes

Yes*

* Flexible chimney liner size is determined by using the type “B” vent size for
the available BTUH input, then reducing the maximum capacity by 20%
(multiply maximum capacity times 0.80).  The minimum capacity is the same
as shown in the “B” vent tables.

Содержание DD1A040A9241A Series

Страница 1: ...rotation ALL phases of this installation must comply with NATIONAL STATE AND LOCAL CODES IMPORTANT This Document is customer property and is to remain with this unit Please return to service informati...

Страница 2: ...g ignition input rate temperature rise and venting according to the manufacturer s instructions 10 This product must be piped by a Licensed Plumber or Gas Fitter in the Commonwealth of Massachusetts S...

Страница 3: ...drops or ducts with equivalent lengths and sizes See Field Wiring Diagrams for Twinning on page 16 for proper hookup CAUTION To prevent shortening its service life the furnace should not be used as a...

Страница 4: ...4 18 CD19D7 22 Installer s Guide From Dwg 21C341699 Rev 7 UD A 1A OUTLINE DRAWING ALL DIMENSIONS ARE IN INCHES...

Страница 5: ...18 CD19D7 22 5 Installer s Guide From Dwg 21C341700 Sh 1 Rev 3 DD A 1A OUTLINE DRAWING ALL DIMENSIONS ARE IN INCHES...

Страница 6: ...234567890123456 123456789012345678901234567890121234567890123456 123456789012345678901234567890121234567890123456 123456789012345678901234567890121234567890123456 1234567890123456789012345678901212345...

Страница 7: ...FURNACE SHOWN Confined spaces are installations with less than 50 cu ft of space per 1000 BTU hr input from all equipment installed Air for combustion and ventilation requirements can be supplied fro...

Страница 8: ...he furnace is located in a utility room adjacent to the living area the system should be carefully designed with returns which minimize noise transmission through the return air grille Although these...

Страница 9: ...n Flexible duct connectors are recommended to connect both supply and return air ducts to the furnace If only the front of the furnace is accessible it is recommended that both supply and return air p...

Страница 10: ...inserted into the bottom of the furnace The retaining screw pin on each side inserts into engagement holes at the bottom of the furnace cabinet side See Figures 13 14 16 NOTE Remove the bottom front...

Страница 11: ...e side of the furnace Confirm that the upper retaining pin screw locks into the engagement hole in the blower deck and the lower pin screw rests against the side of the bottom panel See Figures 14 15...

Страница 12: ...1 2 DO NOT CUT CUT ON LINE Airflow Airflow d TABLE 7 CABINET WIDTH FILTER SIZE FILTER BRACKET LOCATION 14 1 2 2 14X20X1 12 7 8 17 1 2 2 16X20X1 14 3 8 21 2 16X20X1 13 1 8 24 1 2 2 16X20X1 11 5 8 Locat...

Страница 13: ...ercent NOTE If desired a side wall termination can be accom plished through the use of an add on draft inducer The inducer must be installed according to the inducer manufacturer s instructions Set th...

Страница 14: ...before servicing the unit Failure to follow this warning could result in electrical shock personal injury or death D 2 4 X 7 g GAS VENT TERMINATION ROOF PITCH MINIMUM HEIGHT FLAT TO 7 12 OVER 7 12 TO...

Страница 15: ...m As with all gas appliances using electrical power this furnace shall be connected into a permanently live electric circuit It is recommended that it be provided with a separate circuit protection de...

Страница 16: ...3 Rev 2 TWIN TWIN R1 R1 TWINNING CONNECTION DIAGRAM FOR TWINNING 1 STAGE FURNACES WITH SINGLE WIRE TWINNING FEATURE 1 STAGE HEATING ONLY THERMOSTAT 1 STAGE HEAT ONLY THERMOSTAT WITH FAN SWITCH FURNACE...

Страница 17: ...he gas valve for propane is 13 8 W C Mini mum pressure is 11 0 W C All gas fittings must be checked for leaks using a soapy solution before lighting the furnace DO NOT CHECK WITH AN OPEN FLAME The fol...

Страница 18: ...em 2 Attach a manifold pressure gauge with flexible tubing to the outlet pressure boss marked OUT P on White Rodgers gas valve model 36G or 36J See Figure 28 for White Rodgers gas valve model 36J See...

Страница 19: ...if orifice change is required Furnace input rate and temperature rise should be checked again after changing orifices to confirm the proper rate for the altitude Installations above 4 000 feet may req...

Страница 20: ...ty of the unit it must be checked out on initial start up by the installer To check for proper operation of the limit switches set the thermostat to a temperature higher than the indicated temperature...

Страница 21: ...ignition is not achieved it will lockout the furnace 3 POWER FAILURE If there is a power failure during a heating cycle the system will restart the ignition sequence automatically when power is resto...

Страница 22: ...22 18 CD19D7 22 Installer s Guide NOTES...

Страница 23: ...18 CD19D7 22 23 Installer s Guide NOTES...

Страница 24: ...distributor P I 08 02 Since the manufacturer has a policy of continuous product and product data improvement it reserves the right to change design and specifications without notice Literature Order N...

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