MONTEREY PLUS TOP VENT GAS WALL HEATER
17
Attaching Your Furnace
continued
After furnace is in position, install rear outlet register as shown
in
Figure 12
. Have damper in open position when inserting
the assembly. Secure the rear outlet register to speed nuts
with the machine screws furnished.
FIGURE 12 – MOUNTING REAR OUTLET REGISTER
Gas Supply and Piping
The gas control valve, in the furnace, is shipped with a seal
over the gas inlet tapping. Do not remove the seal until ready
to connect the piping.
WARNING:
Danger of property damage, bodily
injury or death. Make sure the furnace is equipped to
operate o the type of gas available. Models designed
as natural gas are to be used with natural gas only.
Models designed for use with liquefied petroleum
propane gas have orifices sized for commercially pure
propane gas. They cannot be used with butane or a
mixture of butane and propane.
GAS SUPPLY
For propane gas the minimum inlet gas supply pressure for
the purpose of input adjustment is 11-inches water column.
The maximum inlet gas supply pressure is 13-inches water
column.
For natural gas, the minimum inlet gas supply pressure for
the purpose of input adjustment is 5-inches water column.
The maximum inlet as supply pressure is 7-inches water
column.
Gas pressure and input to the burners must not exceed
the rated input and pressure shown on the nameplate. The
natural gas manifold pressure should be 4-inches water
column. The manifold pressure should be 10-inches water
column for propane gas. For operation in elevations above
FURNACE SHIELDS
REAR REGISTER
OUTLET
PLASTER GROUND
2,000 feet, a burner orifice change may be required to suit
the gas supplied. Check with your local gas supplier.
ORIFICE SIZES
The efficiency rating of this appliance is a product thermal
efficiency rating determined under continuous operating
conditions and was determined independently of any
installed system. For elevations above 2,000 feet, reduce
ratings 4% for each 1,000 feet above sea level.
FURNACE TECHNICAL INFORMATION
MODEL
NUMBER
GAS
TYPE
INPUT
RATING
BTU/hr.
HEATING
CAPACITY
RATING
BTU/hr.
MAIN BURNER ORIFICE
DRILL
DECIMAL QUANTITY
2509822A NATURAL
25,000
18,935
#43
0.089
1
2509821A PROPANE 25,000
19,759
.057
"
1
3509822A NATURAL
35,000
34,496
#36
0.106
1
3509821A PROPANE 35,000
25,588
.069
"
1
5009822A NATURAL
50,000
38,490
.091
"
2
5009821A PROPANE 50,000
39,827
.058
"
2
GAS CONVERSION KITS
NATURAL GAS TO PROPANE GAS
8907
25098 SERIES WITH WILLIAMS BRAND GAS VALVE
8908
35098 SERIES WITH WILLIAMS BRAND GAS VALVE
8909
50098 SERIES WITH WILLIAMS BRAND GAS VALVE
GAS CONVERSION KITS
PROPANE GAS TO NATURAL GAS
8910
25098 SERIES WITH WILLIAMS BRAND GAS VALVE
8911
35098 SERIES WITH WILLIAMS BRAND GAS VALVE
8912
50098 SERIES WITH WILLIAMS BRAND GAS VALVE
