BuckMaster 42ZCBBXL User manual

BUCK STOVE MODEL 42ZCBB VENTLESS
FIREBOX ENCLOSURE
FOR GAS-FIRED DECORATIVE TYPE UNVENTED ROOM
HEATERS FOR USE WITH OPTIONAL WOODEN FLUSH MOUNT
MANTEL (FF) AND OPTIONAL WOODEN SURROUND (WS)
(UNIVERSAL BOX)
FOR USE ONLY WITH
A LISTED GAS-FIRED UNVENTED
DECORATIVE ROOM HEATER
NOT TO EXCEED
40,000 BTU/H
DO NOT BUILD A WOOD FIRE
Carefully review instructions supplied
with decorative type unvented room heater
for minimum fireplace size requirement.
DO NOT INSTALL AN APPLIANCE IN
THIS FIREBOX UNLESS THIS FIREBOX
MEETS THE MINIMUM DIMENSIONS REQUIRED
FOR THE INSTALLATION
WARNING: If information in this manual is not followed exactly, a fire or explosion
may result causing property damage, personal injury or loss of life.
INSTALLER: Leave this manual with appliance.
CONSUMER: Retain this manual for future reference.
Revised November 2018
MANUFACTURED BY NEW BUCK
CORPORATION
200 ETHAN ALLEN DRIVE, PO BOX 69
SPRUCE PINE, N.C. 28777
www.buckstove.com

TABLE OF CONTENTS
Safety Information and Warnings ....................................................................................... 3
Installation........................................................................................................................... 5
Firebox and Framing Dimensions (ZC) (FF) ...................................................................... 6
Firebox Clearances (ZC) (FF)............................................................................................. 7
Finishing Your Firebox ....................................................................................................... 8
Mantel Profiles For Zero Clearance.................................................................................... 9
Optional Wooden Flush Mount Mantel Front (FF)..…..…………………………………10
Optional Wooden Surround (WS)………………………………………………………...11
Producing Adequate Ventilation ....... ……………………………………………………13
Air For Combustion and Ventilation from Inside Building .............................................. 15
Air For Combustion and Ventilation from Outdoors........................................................ 16
Optional Blower Installation ............................................................................................. 17
Wiring Diagram................................................................................................................. 18
Replacement Parts ............................................................................................................. 19
Warranty............................................................................................................................ 20
Owner Registration ............................................................................................ Back Cover

Page 2
SAFETY INFORMATION
WARNINGS
IMPORTANT: READ THIS OWNER’S MANUAL CAREFULLY AND COMPLETELY
BEFORE TRYING TO ASSEMBLE, INSTALL, OPERATE OR SERVICE THIS APPLIANCE
(FIREBOX ENCLOSURE).
Early signs of carbon monoxide poisoning resemble the flu, with headaches, dizziness and/or nausea.
If you have these signs, heater may not be working properly. Get fresh air at once! Have heater
serviced.
Some people-pregnant women, persons with heart or lung disease, anemia, those under influence of
alcohol and those at high altitudes are more affected by carbon monoxide than others.
CAUTION: Strong drafts, such as a ceiling fan placed directly in front of heater (pulling from
either direction) may create sooting. Sooting will discolor walls.
1. The installation must conform with local codes or in absence of local codes, with
National Fuel Gas Code, ANSI Z223.1/NFPA54.
2. This appliance may be installed in an After-Market* Manufactured Home, where not
prohibited by state or local codes.
* (After-Market: Completion of sale, not for purpose of resale from manufacturer.)
3. This heater shall not be installed in unusually tight construction unless provisions are provided for
adequate combustion and ventilation air. See Page 13, for Producing Adequate Ventilation.
4. Any safety screen or guard removed for servicing an appliance must be replaced prior to operating
the heater. This appliance (vent less firebox enclosure) is manufactured with fireplace screens and
you must close any fireplace screens before operation of decorative type unvented room heater.
5. Do not use this heater for burning trash or cooking. Never place matches, paper, garbage or any
other material on top of logs or into flames.
6. WARNING: Do not use a blower insert, heat exchanger insert or other accessory not approved for
use with this heater.
7. The fireplace canopy must not be modified or replaced with a canopy that may be provided with
unvented decorative room heater.
8. This universal box has been tested, listed and certified to ANSI Z21. 91-2017 Vent less Firebox
Enclosures for Gas-Fired Unvented Decorative Room Heaters.

Page 3
LEFT
SIDE
RIGHT
SIDE
HOOD VISOR
42 ZCBB FRONT
SCREEN DOORS
FRONT SIDE PANELS
BOTTOM FRONT PANELS
TOP FRONT PANELS
NOTE: THIS IS A VENTLESS FIREBOX ENCLOSURE (UNIVERSAL)
FOR GAS FIRED DECORATIVE TYPE UNVENTED ROOM HEATERS.
IT WILL ACCEPT ANY GAS LOGS UP TO 40,000 BTU’S AS LONG AS
LOGS WILL FIT. YOU MUST MEET MINIMUM CLEARANCES
SPECIFIED IN INSTRUCTION MANUAL. FAILURE TO FOLLOW
INSTALLATION INSTRUCTIONS WILL VOID WARRANTY.
WARNING
THIS HEATER SHALL NOT BE INSTALLED IN UNUSUALLY
TIGHT CONSTRUCTION SPACE UNLESS PROVISIONS ARE
MADE FOR ADEQUATE COMBUSTION AND VENTILATION AIR.
See Page 13, for Producing Adequate Ventilation.
WARNING
DO NOT USE A BLOWER INSERT, HEAT EXCHANGER
INSERT OR OTHER ACCESSORY NOT APPROVED
FOR USE WITH THIS HEATER.

Page 4
INSTALLATION
Your New Buck Ventless Firebox Enclosure may be installed in Residential or *After-Market
Manufactured Homes. This appliance may be installed in an *After Market Manufactured Home,
where not prohibited by state or local codes.
* (After Market: Completion of sale, not for the purpose of resale from manufacturer).
NOTE: See page 13 for “Producing Adequate Ventilation”.
CHOOSING THE LOCATION FOR YOUR FIREBOX
Figure 1 shows some of the many ways your firebox may be installed. Consider traffic pattern in your
room and location of doors and windows. Moving air from ceiling fans, open doors and hot air grills
may cause flames to impinge logs resulting in sooting. If a disturbance is found that affects flames, it
must be eliminated by turning off ceiling fan, closing the door or closing hot air register. A corner
location may be best where space is limited.
Your Ventless Firebox Enclosure weighs no more than some of your fine furniture. If firebox is
located near a load bearing wall, additional supports to foundation will not be necessary. Heavy
facings, such as, brick, stone, etc., may require additional foundation support.
NOTE: When firebox is installed directly on carpeting, tile, or other combustible materials,
other than wood flooring, firebox shall be installed on a metal or wood panel extending full
width and depth of enclosure.
ROOMDIVIDER
PARTIAL ROOM PROJECTION
FULLROOM PROJECTION
FLUSH
CORNER
Figure 1
GAS LINE
The gas supply line and electrical supply must be
installed before framing in fireplace by a licensed
installer. This appliance when installed, should be
electrically grounded in accordance with local codes or
in absence of local codes, with National Electrical
Code, ANSI \ NFPA 70.
DRAFTS
Do not locate fireplace in high traffic areas or areas
exposed to high drafts and winds. Locate fireplace away
from furniture and draperies.

Page 5
FIREBOX AND FRAMING DIMENSIONS (ZC) & (FF)
NOTE: SEE PAGE 10 IF AN OPTIONAL WOODEN FLUSH MOUNT MANTEL
FRONT (FF) IS TO BE USED.
Figure 2
GAS LINE
33-1/8"
18-15/16" 35-5/8"
36-5/8"
19 3/8"
8 1/16"
10 1/4"
36-5/8"
Figure 2
37-5/16"
37-5/16"
39 3/8"
35 1/2"
20 1/4"
11 1/4"
45 11/16"
20 1/2"
42 3/8"
38 1/8"
38 1/8"
46- 9/16”
WARNING: INSULATION OR
OTHER MATERIALS MUST NOT BE
PLACED AROUND OR FIREBOX,
FILLING SPACES AROUND FIRE-
BOX CAN CAUSE A FIRE OR MAY
RESULT IN PROPERTY DAMAGE,
PERSONAL INJURY, OR LOSS OF
LIFE .
WARNING: NOTCHING
OF THE FRAMING
AROUND STANDOFFS
(SPACERS) OR ALTERA-
TION OF STANDOFFS
CAN CAUSE A FIRE OR
MAY RESULT IN PROP-
ERTY DAMAGE, PER-
SONAL INJURY, OR LOSS
OF LIFE.
NOTE: YOUR NEW BUCK
CORPORATION VENTLESS FIREBOX
ENCLOSURE IS EQUIPPED WITH A
FACTORY INSTALLED CANOPY. IT
MAY NOT BE REPLACED WITH ANY
OTHER MANUFACTURER’S CANOPY.

Page 6
Figure 3
FIREBOX CLEARANCES
The firebox may be placed directly on a combustible floor,
against a combustible wall at marked clearances or on a
raised wooden platform.
If firebox is to be installed on a raised wooden platform,
platform must be a continuous level surface. The firebox
must be secured in place so it cannot shift positions.
Only header (see Figure 3) may rest on standoffs on top of
firebox. When the firebox is installed over carpeting, vinyl
tile, or any combustible material other than wood flooring,
it must be installed on a metal or wood panel extending its
full width and depth. Alternatives, carpeting, vinyl tile,
etc. may be removed beneath firebox before installing.
COMBUSTIBLE MATERIALS MUST NOT BE INSTALLED
OVER OR TOUCH ANY BLACK PAINTED SURFACE. DO
NOT BLOCK HEAT CIRCULATING AIR OUTLETS. DOING
SO MAY RESULT IN POTENTIAL FIRE HAZARDS.
1. Sidewall Clearances: Clearances from side of
firebox opening to any adjacent combustible wall
should not be less than 7".
2. Ceiling Clearances: The ceiling height should
not be less than 42" from top of firebox
opening.
3. Front Clearances: 24” from front of firebox
opening to any combustible materials.
INSTALLING FIREBOX
This list of specific instructions will help you make certain that
every installation operation is performed correctly. Complete
installation steps in the sequence shown.
LOCAL BUILDING CODES SHOULD BE CONSULTED IN
ALL CASES AS TO PARTICULAR REQUIREMENTS
CONCERNING INSTALLATION OF FACTORY BUILT
FIREBOXES. Select the location for firebox by taking into
consideration factors previously outlined in “Choosing
Location.” See page 5.
Framing Firebox
The width of the framed opening must be 46 9/16". The height of
framed opening must be 38 1/8". The entire firebox can be
elevated above floor to achieve a raised hearth effect. This can be
done by adding a small platform to achieve desired height.
NOTE: The wiring for optional blower must be installed
during framing stage.
When framing is inside, outside wall will be insulated. If
framing or chase is outside, thin insulation should be used in
framing on the back, sides and top. The bottom should be
insulated with a hard insulating board. This will prevent cold from
going into chase through firebox to living space.
Install Firebox
Install firebox into framed opening by placing it directlyin front
of opening and sliding it into proper position.
Level Firebox
Check level of firebox on top edge of firebox face. Shim if
necessary.
Secure Firebox
Secure firebox to framing. The nailingflange on firebox will
make securing firebox to frame quick and easy. Use appropriate
size nails or screws to secure firebox.
20 1/4"
46 9/16"
20 1/4"
37 9/16"
7"
1/2"
38 1/8"
38 1/8"
46 9/16"
LEFT FRONT RIGHT
HEADER
FRAMING
FRONT VIEW
SIDE VIEW
TOP
VIEW

Page 7
FINISHING YOUR FIREBOX
There is a wide variety of finishing material
available for your firebox from formal wall
treatments with marble and mantels, to rustic
wood paneling, stone or brick.
IT IS IMPORTANT THAT BLACK FACE OF
THE FIREBOX NOT BE COVERED WITH ANY
TYPE OF COMBUSTIBLE MATERIAL.
Non-combustible facing materials such as
marble, brick or ceramic tile may overlap
black face of firebox up to opening on either
side of firebox. Seal all joints between black
firebox face and wall covering with a heat-
resistant material such as rock wool insulation
or mortar. Be sure to use high temperature
adhesive or mortar when anchoring brick,
stone or tile to face of firebox. Check to see
whether man-made brick and stone are made
of non-combustible materials before using
them on face of firebox. Some of these
products contain combustible materials.
Combustible wall coverings such as paneling
or wallboard may not overlap black face of
firebox. The space between the wall covering
and firebox should be sealed with a heat
resistant material such as rock wool insulation
or mortar.
NOTE: An “L” shaped steel lintel must be
installed across the top of firebox opening
where facing materials such as brick or
stone is used on face of firebox. It acts as a
support/firestop. It should be attached to
face of the firebox with screws and sealed to
firebox with a heat-resistant sealer.
CLEARANCES
To ensure a safe installation, the following
must be carefully observed.
1. Sidewall Clearances: Clearances from
side of firebox opening to any adjacent
combustible wall should not be less than
7". See Figure 4
2. Ceiling Clearances: The ceiling height
should not be less than 42" from top of
firebox opening.
3. Mantel Clearances: See Figure 5.
Non-combustible materials used in
this installation such as slate, tile,
marble, etc. must be at least 1/2"
thick.
4. Floor Clearances: No
clearance is required if appliance is
installed per these instructions.
42" MIN.
CLEARANCE
TOCEILING
7" MIN.
FIGURE4
SIDEWALL
CLEARANCE
FROMFIREPLACE
OPENINGTOSIDEWALL
DISCRIPTION
DATEREV. BY APRVD
J.GLENN
3-12-02
ZCBB (FRONT)
B.HONEYCUTT
N.T.S.
ZCBB
LEFT RIGHT
FRONT 24” FROM FRONT TO ANY COMBUSTIBLE MATERIAL

Page 8
MANTEL PROFILES FOR VENTLESS FIREBOX ENCLOSURE
(UNIVERSAL BOX) ZERO CLEARANCE CABINET MUST BE FOLLOWED
DISCRIPTION
DATEREV. BY APRVD
J.GLENN
2-2-00 11 GA. C.R.
UPPER HEAT SHIELD
M.BEASTON
N.T.S.
21 1/2" X 9 1/2" 22 PS220012
NEW RELEASE
M.B.DATE
A
3”
3/4”
3 1/2”
4”
B
CANOPY
STANDOFF
COMBUSTIBLE
MATERIALS
42ZCBB
MANTEL CLEARANCES
MANTEL WIDTH MANTEL HEIGHT
(“A” inches) (“B” inches above firebox opening)
6.0 14.0
8.0 14.0
10.0 14.0
12.0 16.0
FIGURE 5

Page 9
DISCRIPTION
DATEREV. BY APRVD
J.GLENN
11-16-05 WFMMFF
ZCBB & PAKDMZCBBFF
B.HONEYCUTT
N.T.S.
ZCBB INSTALLATION
INSTALLATION INSTRUCTIONS FOR MODEL 42ZCBB OPTIONAL
WOODEN FLUSH MOUNT MANTEL FRONT (FF) (KIT#PAKDM42ZCBBFF)
NOTE: Follow framing instructions on page 6 & 7. With the exception of placement of
42ZCBB in framed opening. The 42ZCBB must be placed with front surface of appliance 1-
9/16” out from finished wall. This will allow FF to set flush with front of 42ZCBB.
CLEARANCES:
1. Sidewall Clearances: Clearances from side of firebox opening to any adjacent combustible wall
should not be less than 7". (See page 8, figure 4)
2. Ceiling Clearances: The ceiling height should not be less than 42" from top of firebox opening.
INSTALLATION INSTRUCTIONS:
1. After removing FF kit from its packaging follow any pre-installation instructions provided with
kit.
2. Place FF over front of 42ZCBB, centering opening in FF left to right with 42ZCBB front.
3. Next you must secure FF to finished wall surface. You may use “L” brackets, screws or finishing
nails (not provided with FF).
NOTE: If an unfinished FF kit is used, do not operate appliance while finishing wood or before finish
has dried properly.
42ZCBB
TOP VIEW
FINISHED WALL FACE
6” 66-1/8”
42ZCBB
42ZCBB & FF FRONTS
ARE FLUSH.
1-9/16”
SIDE VIEW
49-1/2”
59-1/8”
FRONT VIEW

Page 10
INSTALLATION INSTRUCTIONS FOR MODEL 42ZCBB OPTIONAL
WOODEN SURROUND (WS) (KIT# PAKDM42ZCBB)
CLEARANCES:
1. Sidewall Clearances: Clearances from side of firebox opening to any adjacent combustible wall
should not be less than 7". See Figure 4
2. Ceiling Clearances: The ceiling height should not be less than 42" from top of firebox opening.
ASSEMBLY INSTRUCTIONS:
Tools Needed: Medium Phillips Screwdriver
Step 1: Lay out all components. (See diagram 1)
Step 2: Assemble end panels (A & B) to top front rail ( C ).
Step 3: Stand end panels and top front rail onto base (hearth) and fasten down with screws provided
(See diagram 1).
NOTE: Position back of end panels with back of base (hearth) centering assembly from each end. In-
stall front screws first, then pull back towards inside to square the surround up. Install screws through
back holes.
Step 4: Place top onto surround, flush with back and equal on each end. Secure both ends and middle
with screws provided.
CONTINUED

Page 11
REAR VIEW
DISCRIPTION
DATEREV. BY APRVD
J.GLENN
11-15-05 ZCBB & W.S.
ZCBB CLEARANCE TO W.S.
B.HONEYCUTT
N.T.S.
ZCBB
After assembling WS you must insert 42ZCBB. It is best to insert 42ZCBB from rear of WS, this
gives you more area to hold 42ZCBB and reduces risk of scratching surface of front area of base
(hearth) area. Flush and center 42ZCBB’s front in the WS.
You can attach 42ZCBB to the WS with “L” brackets at rear sides of 42ZCBB (brackets not pro-
vided).
42ZCBB

Page 12
This section is used for residential installation or after market mmanufactured home
installation.
UNCONFINED SPACE:
An unconfined space has a minimum air volume of 50 cubic feet for each 1,000 BTU/Hr (4.8m3per
Kw) input rating of all appliances in space (Cubic feet equals Length x Width x Height of space).
Include adjoining rooms only if there are doorless passageways or ventilation grills between rooms.
CONFINED SPACE:
The National Fuel Gas Code defines unusually tight construction as a space whose volume is less than
50 cubic feet per 1,000 BTU per hour (4.8m3per KW) of aggregate input rating of all appliances
installed in that space.
WARNING: If the area in which heater may be operated is smaller than that defined as an
unconfined space, provide adequate combustion and ventilation air by one of methods
described in the National Fuel Gas Code, ANSI Z223.1, 1992, Section 5.3
DETERMINING FRESH-AIR FLOW FOR
HEATER LOCATION
DETERMINE IF YOU HAVE UNUSUALLY TIGHT CONSTRUCTION OR UNCONFINED SPACE
Use this worksheet to determine if you have unusually tight construction or unconfined space.
SPACE: Include room in which you will install heater plus adjoining rooms with doorless
passageways or ventilation grills between the rooms.
1. Determine the volume of space (length x width x height).
Length x Width x Height= ________ cu.ft. (volume of space)
EXAMPLE: 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) =
2560 cu. ft. (volume of space)
If additional ventilation to adjoining room is supplied with grills or openings, add volume of these
rooms to total volume of space.
2. Divide space volume by 50 cubic feet to determine maximum BTU/Hr space
can support.
________ (volume of space) / 50 cu. ft = (maximum BTU/Hr the space can support)
EXAMPLE: 2560 cu. ft. (volume of space) / 50 cu. ft. = 51.2 or
51200 (maximum BTU/Hr the space can support.)
PRODUCING ADEQUATE VENTILATION
NOTICE: Information on provisions for adequate combustion and ventilation air are located in
unvented room heater’s installation instructions. The unvented room heater’s instructions must
be followed exactly.

Page 13
3. Add the BTU/Hr of all fuel burning appliances in space.
Vent-Free Heater _________________________BTU/Hr.
Gas Water Heater* _________________________BTU/Hr.
Gas Furnace _________________________BTU/Hr.
Vented Gas Heater _________________________BTU/Hr.
Gas Fireplace Logs _________________________BTU/Hr.
Other Gas Appliance* +_________________________BTU/Hr.
Total = _________________________BTU/Hr.
Example: Gas water heater 40000 BTU/Hr.
Vent-free heater + 18000 BTU/Hr.
Total = 58000 BTU/Hr.
* Does not include direct-vent gas appliances. Direct-vent draws combustion
air from outdoors and vents to outdoors.
4. Compare maximum BTU/Hr the space can support with actual amount
of BTU/Hr used.
_____________BTU/Hr (maximum space can support)
_____________BTU/Hr (actual amount of BTU/Hr used)
Example: 51200 BTU/Hr (maximum space can support)
58000 BTU/Hr (actual amount of BTU/Hr used)
The space in above example is a confined space because actual BTU/Hr used is more than
maximum BTU/Hr space can support. Additional fresh air must be provided. The following options
are available.
A. Rework worksheet, adding space of an adjoining room. If extra space provides an unconfined
space, remove door to adjoining room or add ventilation grills between rooms. See “Ventilation
Air From Inside Building”, page 15.
B. Vent room directly to outdoors. See “Ventilation Air From Outdoors” page 16.
C. Install a lower BTU/Hr heater, if lower BTU/Hr size makes room unconfined.
If actual BTU/Hr used is less than maximum BTU/Hr space can support, space is unconfined. You
will need no additional fresh air ventilation.
WARNING
YOU MUST PROVIDE ADDITIONAL VENTILATION AIR IN UNUSUALLY TIGHT
CONSTRUCTION.

Page 14
AIR FOR COMBUSTION AND VENTILATION
FROM INSIDE BUILDING
This fresh air would come from an adjoining unconfined space. When venting to an adjoining space,
you must provide two permanent openings: one within 12" of ceiling and one within 12" of floor on
wall connecting two spaces (see Options 1 and 2, Figure 6). You can also remove door into adjoining
room (see Option 3, Figure 6).
WARNING
REWORK WORKSHEET, ADDING THE SPACE OF ADJOINING UNCONFINED SPACE.
THE COMBINED SPACES MUST HAVE ADEQUATE AMOUNT OF AIR TO SUPPLY ALL
APPLIANCES IN BOTH SPACES.
NOTE: Each opening shall have a minimum free area of 1 square inch per 1000 BTU’s per hour
of total input ratings of all gas utilization equipment in confined space, but not less than 100
square inches.
Figure 6
Ventilation Air From Inside Building

Page 15
Figure 7 Ventilation Air From Outdoors
AIR FOR COMBUSTION AND VENTILATION
FROM OUTDOORS
Provide extra fresh air by using ventilation grills or ducts. You must provide two permanent
openings: one within 12" of ceiling and one within 12" of floor. Connect these items directly to
outdoors. These spaces include attics and crawl spaces. Follow National Fuel Gas Code NFPA 54/
ANSI Z223.1, Section 4.3, “Air For Combustion and Ventilation” for required size of ventilation
grills or ducts.
IMPORTANT: Do not provide openings for inlet air into attic if attic has a thermostat-controlled
power vent. Heated air entering attic will activate power unit.
VentilatedAttic
OutletAir
InletAir
Ventilated
Crawl Space
To
Crawl
Space
ToAttic
OutletAir
InletAir
WARNING
THIS HEATER MUST HAVE ADEQUATE AMOUNT OF AIR FOR PROPER
OPERATION. IF NOT, POOR FUEL COMBUSTION COULD RESULT. READ THE
FOLLOWING INSTRUCTIONS TO ENSURE PROPER AMOUNT OF AIR FOR THIS
AND OTHER FUEL-BURNING APPLIANCES IN YOUR HOME.

Page 16
OPTIONAL BLOWER INSTALLATION
The Model 42ZCBB has an optional MA ZCBB714 blower kit that can be purchased from your
dealer. You will need to follow these steps, diagram below and wiring diagram on page 18.
NOTE: The receptacle which is provided in Model 42ZCBB must be wired into your home
(residence) in order to have electricity to operate blower motor. If receptacle hasn’t been wired in
during installation of 42ZCBB you may need to contact a licensed electrician. The Model 42ZCBB
also has a thermostat and wires and an ON/OFF switch standard on all units.
“WARNING: Any changes to this heater or its controls can be dangerous.”
A. First remove burner base and logs. Be sure to turn “OFF” gas supply before disconnecting supply
line.
B. Remove (10) ten hex-head self-piercing screws that hold down motor cover plate on inner bottom
of unit.
C. Locate the (2) two wires that come down back of back air channel from thermostat .Connect (1)
one of thermostat wires to top terminal on ON / OFF switch.
D. Connect black power cord wire to 24" jumper wire provided, then attach jumper wire to middle
terminal on ON / OFF switch. Next connect remaining thermostat wire to (1) of wires coming
from motor. Connect white power cord wire to white motor wire. The green power cord wire
should be screwed to motor bracket as ground wire. Place blower motor in cover plate opening.
Position blower motor into air channel on rear of unit centering blower motor. It is best to leave
about a 1/8" space between blower and back of air channel. This will reduce chance of vibrating
or noise.
E. After placing blower motor you must secure it to bottom of unit with two (2) #10x1/2 Hex
Washer Head self-piercing screws provided with blower kit.
F. Plug power cord into receptacle and reattach motor cover plate to inner bottom using screws you
removed earlier.
DISCRIPTIONDATEREV. BY APRVD
J.GLENN
3-3-02
blower
BDH
N.T.S.
ZCBB
NEW RELEASE
DATE
BLOWER MOTOR
MOTOR COVER PLATE
SCREWS
POWER CORD
RECEPTACLE ON / OFF SWITCH
WIRES TO
SWITCH
SCREWS
ROMAX CONNECTOR
WARNING: IF INFORMATION IN THIS MANUAL IS NOT FOLLOWED EXACTLY, A FIRE
OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR
LOSS OF LIFE.
THERMOSTAT
THERMOSTAT WIRES

Page 17
WARNING: CHILDREN AND ADULTS SHOULD BE ALERTED OF HIGH
SURFACE TEMPERATURE AND SHOULD STAT AWAY TO AVOID BURNS OR
CLOTHING IGNITION.
YOUNG CHILDREN SHOULD BE CAREFULLY SUPERVISED WHEN THEY
ARE IN SAME ROOM WITH THE APPLIANCE.
WARNING: DO NOT PLACE CLOTHING OR OTHER FLAMMABLE
MATERIAL ON OR NEAR APPLIANCE.
WIRING DIAGRAM (MA ZCBB714)
NOTE: If any of original wire must be replaced, it must be replaced with type 14GA. 105oC.
rating wire or its equivalent.
NOTE: Installation and repair should be done by a qualified service person. This heater should be
inspected before use and at least annually by a qualified service technician. More frequent
cleaning may be required due to excessive lint from carpeting, bedding material, pet hair, etc.
It is imperative that control compartments and circulating air passageways of heater be kept
clean.
Caution: Label all wires prior to disconnection when servicing these controls. Wiring errors may
cause operational damage.
Verify proper operations after servicing.
NOTE: THE N.B.C. OPTIONAL FAN KIT MUST BE ELECTRICALLY GROUNDED IN
ACCORDANCE WITH LOCAL CODES. IN THE ABSENCE OF LOCAL CODES,
NATIONAL ELECTRICAL CODE, ANSI/NFPA 70 MUST BE USED.
Figure 8
DISCRIPTIONDATE
REV. BY APRVD
J.GLENN
3-4-02
WIRING DIAGRAM
BDH
N.T.S.
ZCBB MA ZCBB714
BLACK
WHITE

Page 18
REPLACEMENT PARTS
1. HOOD VISOR - # PS42Z009
2. REAR REFRACTORY AND 2ˣ SIDE REFRACTORY - # PO42ZCBB2
3. DOOR KIT - # MA42ZCBBDOORS
4. ON/OFF SWITCH - # PE RA911VB
5. JUMPER WIRES - # PE 30JUMPER
6. THERM O DISC 140˚ -# PE 400130
PARTS MAY BE OBTAINED THROUGH YOUR LOCAL NBC DEALER.
IN ABSENCE OF A DEALER, PLEASE CONTACT NEW BUCK CORPORATION AT
200 ETHAN ALLEN DRIVE, P.O. BOX 69, SPRUCE PINE, NC 28777
OPTIONAL PARTS
DESCRIPTION PART NUMBER
OPT. BLOWER KIT # MA ZCBB714
MOTOR # PE SBR085
POWER CORD # PE 400240