Product Manual

Force-Air Propane Construction HeaterOperating Instructions and Owner’s Manual
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).
170QFAVT ‑ 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
WIRING DIAGRAM
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#
COLORCODE
B-BLACK
L-BLUE
G-GREEN
O-ORANGE
R-RED
W-WHITE