Clearances And Accessibility; Orizontal Nstallation; Urnace Uspension; Xisting Urnace Emoval - Goodman *MH8 Installation Instructions Manual

L L L L L R R R R R
O C O C O CA A A A A T I O N O C O C T I O N T I O N T I O N T I O N E Q U I R E M E N T E Q U I R E M E N TS S S S S A N D E Q U I R E M E N T E Q U I R E M E N T E Q U I R E M E N T
wood. Follow the instructions with the subbase for proper
installations. Do not install the furnace directly on carpeting,
tile, or other combustible material other than wood
flooring. (NO NO NO NO NOTE TE TE TE TE: The subbase will not be required if an air
conditioning coil is installed between the supply air
opening on the furnace and the floor.
Vent Pipe Clearance to Combustibles-
6" using Single Wall Connector or 1"
using B-1 vent.
Top - 1"
• Adequate combustion/ventilation air must be supplied to
the closet.
• Furnace must be completely completely sealed to floor or base. completely completely
completely
Combustion/ ventilation air supply pipes must terminate
12" from top of closet and 12" from floor of closet. DO
NOT remove solid base plate for side return.
• Return air ducts must be completely
and terminate outside the enclosure surfaces.
C C C C C A A A A A
LEARANCES LEARANCES LEARANCES AND LEARANCES LEARANCES AND AND AND AND CCESSIBILITY CCESSIBILITY CCESSIBILITY CCESSIBILITY CCESSIBILITY
Unobstructed front clearance of 24" for servicing
VE N T
SID ES
B1-V EN T SIN G LE
1" 6"
Top clearance for horizontal configuration - 1"
H H H H H I I I I I
ORIZONTAL ORIZONTAL ORIZONTAL ORIZONTAL ORIZONTAL NSTALLATION NSTALLATION NSTALLATION NSTALLATION NSTALLATION
Line contact to framing is permitted when installed in the horizon-
tal configuration. Line contact is defined as the portion of the cabi-
net that is formed by the intersection of the top and side. ACCESSI-
BILITY CLEARANCE, WHERE GREATER, SHOULD TAKE PRECEDENCE
OVER MINIMUM FIRE PROTECTION CLEARANCE. A gas-fired furnace
for installation in a residential garage must be installed so that the
ignition source and burners are located not less than eighteen inches
(18") above the floor and is protected or located to prevent physical
damage by vehicles. A gas furnace must not be installed directly on
carpeting, tile, or other combustible materials other than wood floor-
ing.
C C C C C
A N D A N D A N D A N D
Back - 0"
Side
Clearance - 1"
Front Clearance - 3"
completely completely sealed to the furnace completely completely
for servicing for servicing for servicing is recommended. for servicing
FR O N T B AC K
1" 3" 0"
O N S I D E RA A A A A T I O N S O N S I D E R O N S I D E R O N S I D E R O N S I D E R T I O N S T I O N S T I O N S T I O N S
F F F F F S S S S S
URNACE URNACE URNACE URNACE URNACE USPENSION USPENSION USPENSION USPENSION USPENSION
If suspending the furnace from rafters or joist, use 3/8" threaded
rod and 2"x2"x3/8" angle iron as shown below. The length of rod
will depend on the application and the clearances necessary.
E E E E E F F F F F
XISTING XISTING XISTING URNACE URNACE URNACE
XISTING XISTING URNACE URNACE
NOTE: NOTE: NOTE: When an existing furnace is removed from a venting system
NOTE: NOTE:
serving other appliances, the venting system may be too large to
properly vent the remaining attached appliances.
The following vent testing procedure is reproduced from the Ameri-
can National Standard/National Standard of Canada for Gas- can National Standard/National Standard of Canada for Gas- can National Standard/National Standard of Canada for Gas- can National Standard/National Standard of Canada for Gas- can National Standard/National Standard of Canada for Gas-
Fired Central Furnaces ANSI Z21.47-Latest Edition, CSA-2.3- Fired Central Furnaces ANSI Z21.47-Latest Edition, CSA-2.3- Fired Central Furnaces ANSI Z21.47-Latest Edition, CSA-2.3- Fired Central Furnaces ANSI Z21.47-Latest Edition, CSA-2.3- Fired Central Furnaces ANSI Z21.47-Latest Edition, CSA-2.3-
La La La La Lat t t t t est E est E est E dition Sec ec ec ec ection 1.23.1. dition S dition S
est E est Edition S dition S
lowed with each appliance connected to the venting system placed
in operation, while any other appliances connected to the venting
system are not in operation:
a. Seal any unused openings in the venting system;
b. Inspect the venting system for proper size and horizontal
pitch, as required by the National Fuel Gas Code, ANSI
Z223.1 or the CAN/CSA B149 Installation Codes and these
instructions. Determine that there is no blockage or
TO P
restriction, leakage, corrosion and other deficiencies which
(P LEN U M )
could cause an unsafe condition;
1"
c. In so 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. 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 shall operate at maximum speed. Do
not operate a summer exhaust fan. Close fireplace
dampers;
d. Follow the lighting instructions. Place the appliance being
inspected in operation. Adjust thermostat so appliance
shall operate continuously;
e. Test for draft hood equipped appliance spillage at the draft
hood relief opening after 5 minutes of main burner
operation. Use the flame of a match or candle;
f. After it has been determined that each appliance
connected to the venting system properly vents when
8
Suspended Furnace
R R R R R
EMOVAL EMOVAL EMOVAL
EMOVAL EMOVAL
tion 1.23.1. tion 1.23.1.
tion 1.23.1. tion 1.23.1. The following steps shall be fol-
Ameri- Ameri- Ameri- Ameri-