6
HIGH EFFICIENCY DIRECT VENT FURNACES
TECHNICAL DATA
(CONTINUTED)
MANIFOLD
PRESSURE
MAX
NATURAL
GAS
mbar
8.7
in W.C.
3.5
PROPANE
GAS
mbar
24.9
in W.C.
10.0
MIN
NATURAL
GAS
mbar
5.5
in W.C.
2.2
PROPANE
GAS
mbar
14.4
in W.C.
5.8
GAS RATE
MAX
NATURAL
GAS
m3/h
0.20
ft3/h
7.0
PROPANE
GAS
m3/h
0.08
ft3/h
3.0
MIN
NATURAL
GAS
m3/h
0.14
ft3/h
5.1
PROPANE
GAS
m3/h
0.06
ft3/h
2.2
MINIMUM INLET PRESSURE
NATURAL
GAS
mbar
17.4
in W.C.
7.0
PROPANE
GAS
mbar
27.4
in W.C.
11.0
INSTALLING YOUR FURNACE
Wall Installation
Installation should be done by a QUALIFIED SERVICE
TECHNICIAN.
The furnace must be located on an outside wall.
Minimum clearances from combustible materrials:
• Unit to the top surface of carpeting, tile: 2-inches (50 mm)
• Unit to back wall (0
"
to spacers): 1/4-inch (6.3 mm).
• Vent to wall enclosure: 1-inch (25.4 mm)
• Unit to sidewalls: 2-inches (50 mm)
• Unit to ceiling: 10-inches (254 mm)
See
Figure 1
showing clearance for installation of vent cap.
Leave at least three feet in front of the wall furnace for
servicing and proper operation. The wall furnace must
be installed in such a way that the external casing can be
completely removed for servicing.
If there is a shelf above the furnace, it must be non-
combustible. A minimum clearance of 4-inches
(100 mm) is recommended between the furnace and the
non-combustible shelf above it.
Gas equipment in residential garages must be installed
so that all burners and burner ignition devices are located
not less than 18-inches (460 mm) above the floor. Such
equipment shall be located, or protected, so it is not
subject to physical damage by a moving vehicle.
The vent terminal of this direct-vent furnace must be
located at least 9-inches (230 mm) from any opening
through which flue gases could enter a building. The
bottom of the vent terminal and the air intake must be
located at least 12-inches (300mm) above grade.
WARNING:
The nearest point of the vent cap
should be a minimum horizontal distant of six (6)
feet (1,830 mm) from any pressure regulator. In case
of regulator malfunction, the six (6) feet (1,830 mm)
distance will reduce the chance of gas entering the
vent cap.
DO NOT COVER THE FURNACE.
Make sure that the correct gas supply is available.
Conversion to another gas type must be performed by
a qualified service technician. If the type of gas does not
correspond to the type to be used (natural or propane
gas), it must be converted to the correct type of gas. It is
necessary to do the following two operations:
1. Remove and change the pilot orifice with the correct
gas type as shown below.
2. Remove and change the burner orifice with the
correct gas type as shown below.
3. Remove and change the gas valve with the correct gas
type as shown below.
WARNING:
For the installation of this furnace, the
following items must be used as a vent air intake system:
External Plate
Part Number:WFL–STF088
External Vent Cap
Part Number: WFR–12426530
Flanged Air Inlet Tube
Part Number: WFR–12476500
Air Tube Gasket
Part Number: WFC–12900128
Flue Outlet Tube
Part Number: WFR–12476510
(All the above items are supplied with the furnace) The
diameter of the hole in the wall must exceed at least
2-inches (50 mm) the diameter of the air inlet tube.
GAS TYPE
ORIFICE PART NUMBERS
GAS VALVE
NATURAL
BURNER ORIFICE: JGLL051
PILOT ORIFICE: JGLL064
JVL V023
PROPANE
BURNER ORIFICE: JGLL070
PILOT ORIFICE: J12160880
JVL V024
