NEVER LEA
NEVER LEA
NEVER
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:
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.
BTU'S PER HOUR REQUIRED
Cubic feet
Temperature Rise Required (
of space to
be heated
20
o
5,000
14,000
7,000
19,000
10,000
27,000
15,000
40,000
20,000
54,000
30.000
80,000
120,000
50,000
133,000
200,000
Operating Instructions and Owner's Manual
LEAVE THE HEA
VE THE HEA
VE THE
HEATER UNA
TER UNA
TER
full cylinders
good air circulation
no frost on cylinders
Fuel Cyclinder Capacity: 100#
F)*
o
30
40
50
o
o
o
20,000
27,999
34,000
28,000
38,000
47,000
40,000
54,000
67,000
60,000
80,000
100,000
80,000
107,000
133,000
160,000
200,000
266,000
333,000
UNATTENDED WHILE BURNING!
TTENDED WHILE BURNING!
TTENDED WHILE BURNING!
WARNING: When using a thermostat controlled heater,
its exit area should be protected from personnel and
warnings posted of sudden startup.
Recommended Minimum Gauge
for Cord Extensions
Wire Gauge Chart A.W.G.
Name
Plate 120V
Amps.
5-6
6-8
8-12
10-12
12-14
WIRING DIAGRAM
B
GAS
VALVE
W
CHASSIS
GROUND
B
MOTOR
B
CHASSIS
GROUND
R
THERMOSTAT
B
LINE CORD
CHASSIS
GROUND
COLOR CODE
B-BLACK
L-BLUE
G-GREEN
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
White
7"
Black
6"
Red-(Hi-Temp)
16 1/2"
Red-(Hi-Temp)
16 1/2"
Orange
11"
Green
7"
Red
7"
White
6"
Black
6"
6
Force-Air Propane Construction Heater
Cord Length in Feet
25
50
100
150
18
16
14
12
18
16
12
10
18
14
12
10
16
14
10
16
12
10
SPARK PLUG
B
LINE
HIGH-LIMIT
Y
VALVE
Y
NEUT
R
W
GRD
FLAME CONTROL
W
G
CHASSIS
GROUND
O-ORANGE
R-RED
W-WHITE
Y-YELLOW
FROM
TO
Valve
Terminal Block
On/Off Switch
Terminal Block
High Limit Switch
Valve
High Limit Switch
Terminal Block
Flame Control
Spark Plug
(Ignition)
Flame Control
Ground
(Harness)
Flame Control
Terminal Block
(Harness)
Flame Control
Terminal Block
(Harness)
Flame Control
Terminal Block
(Harness)
8
8
G
CHASSIS
GROUND