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1.0 INSTALLATION REQUIREMENTS
1.1 GENERAL INSTRUCTIONS
1. Examine contents for damage or missing parts
before proceeding with these instructions.
2. Installation of heaters must conform to all local codes.
3. Ensure that heater is level before operation.
1.2 GAS SUPPLY & PRESSURE INFORMATION
All piping and hose must be installed according to
local code, and must be of adequate size and
construction.
WARNING
1. Minimum hose length –
Canada- fifteen feet (15') — USA-ten feet (10')
Maximum hose length - fifty feet (50')
(1" inside diameter)
2. LP Gas Cylinder must be located a minimum
fifteen feet away from heater while heater is in
operation.
3. After assembly and every time the heater is
attached to a new gas cylinder or gas meter,
check for leaks with a soap solution or leak tester
on all gas lines and connections. Failure to do so
may result in property damage, bodily injury or
death. DO NOT USE AN OPEN FLAME.
If high pressure is used to check for leaks, do not
subject this heater's controls to excessive pressure.
Natural gas models must have the supply line limited
to 14 inches (maximum) water column.
If the line pressure will go above 14 inches water
column at any time, a separate regulator must be
used. The minimum supply line pressure at the inlet to
the heater regulator must in no case be lower than 6
inches of water column.
Note: The regulator is an internal component of the
heater and maintains the heater's manifold pressure;
natural gas is 5 inches water column, and LP gas is 10
inches water column.
Heaters equipped for LP gas operations must have a
minimum supply line pressure 11 inches of water
column at the heater. Maximum line pressure is 1/2
PSI (14 inches water column).
1.3 VENTILATION REQUIREMENTS
It has been determined that CO
exceed 5000 PPM (parts per million) and CO should
not exceed 35 PPM for an eight hour continuous ex-
posure.
Combustion of gas fuel requires air. Each SCH-200
heater requires 200 sq.in. of opening for combustion
air. (ex.: 20" x 10" window opening)
To maintain the carbon dioxide content in the air at
or below the concentration mentioned above, the
number of air changes are listed below depending on
the size of the space being heated:
TABLE 1
Required room air changes per hour
for each SCH-200 in operation.
Room Volume cu.ft.
5000
7,500
10,000
15,000
20,000
25,000
50,000
1.4 CLEARANCES TO COMBUSTIBLES
TABLE 2
MODEL
SCH-200-N
SCH-200-L
Page 3
levels should not
2
No. of air changes / HR
10
6
5
3
2.5
2
1
SIDE
( From Radiant
(From Radiant
Surface)
Surface)
52"
52"
SP-MCH2-BX-07A
SCH-200 MANUAL
TOP
48"
48"
R.D: Sept 2004
RL: 7
KH
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