Operating instructions
Force-Air Propane Construction HeaterOperating Instructions and Owner’s Manual
E-6
If any original wiring as supplied by the heater must be replaced, 
it must be replaced with type AWG 105° C wire or its equivalent 
except as indicated (*type SF2-200, **SGI 250° C).
170FAVT - WIRING CHART
COLOR    LENGTH  FROM   TO
White    7”  Valve  Terminal Block
Black    6”  On/Off Switch  Terminal Block
Red-(Hi-Temp)  16 1/2”  High Limit Switch  Valve 
Red-(Hi-Temp)  16 1/2”  High Limit Switch  Terminal Block
Orange    11”  Flame Control  Spark Plug
      (Ignition)   
Green    7”  Flame Control  Ground
      (Harness) 
Red    7”  Flame Control  Terminal Block
      (Harness)
White    6”  Flame Control  Terminal Block
      (Harness)
Black    6”  Flame Control  Terminal Block
      (Harness) 
HOW MUCH HEAT DO I REQUIRE?
For economy, it is important to match input to that required. But 
heat requirements often vary. For example, it usually takes a lot 
more heat to get things warm than it does to keep them that way. 
Likewise, outside air temperature usually changes during the day 
so you may need more heat at night than you do in the daytime. 
An approximation of the heat required can be found by using the 
chart below.
Recommended Minimum Gauge 
 for Cord Extensions 
Wire Gauge Chart A.W.G.
  Name
  Plate 120V  Cord Length in Feet
  Amps.  25  50  100  150
   5-6  18  16  14   12
   6-8  18  16  12   10
   8-12  18  14  12   10
  10-12  16  14  10   8 
  12-14  16  12  10   8
WARNING: When using a thermostat controlled heater, 
its exit area  should be protected from  personnel and 
warnings posted of sudden startup.
  Cubic feet  Temperature Rise Required (
o
F)*
  of space to
  be heated  20
o
  30
o
  40
o
  50
o
   5,000  14,000  20,000  27,999  34,000
   7,000  19,000  28,000  38,000  47,000
   10,000  27,000  40,000  54,000  67,000
   15,000  40,000  60,000  80,000 100,000 
   20,000  54,000  80,000 107,000 133,000
   30.000  80,000 120,000 160,000 200,000
   50,000 133,000 200,000 266,000 333,000 
BTU’S PER HOUR REQUIRED
HIGH-LIMIT
SWITCH X2
LINE
VALVE
NEUT
GRD
CHASSIS
GROUND
CHASSIS
GROUND
CHASSIS
GROUND
CHASSIS
GROUND
CHASSIS
GROUND
LINE CORD
THERMOSTAT
MOTOR
GAS
VALVE
FLAME CONTROL
SPARK PLUG
G
W
G
G
B
B
B
B
R
W
W
R
Y
B
Y
G
G
CP MARK 10DN
Model #170FAVT
WIRING  DIAGRAM
COLOR CODE
B - BLACKR - RED
L - BLUE W - WHITE
G - GREEN
O - ORANGE
SIZE AND CAPACITY OF PROPANE CYLINDERS 
The charts below show the approximate size of the cylinder 
required for these heaters. To use the chart:
1.  Select the lowest air temperature expected (at the bottom of 
the chart).
2.  Move straight up to time of operation desired  
(left side of the chart).
3.  Read the cylinder size required.
All heaters should have:  full cylinders
  good air circulation
  no frost on cylinders
Fuel Cyclinder Capacity: 100#










