Model-mh170favt wiring diagram, Mh170favt - wiring chart, How much heat do i require – Enerco MH170FAVT User Manual
Page 6: Recommended minimum gauge for cord extensions, Btu's per hour required
6
Mr. Heater | Forced-Air Propane Construction Heater
Operating Instructions and Owner’s Manual
Model-MH170FAVT
WIRING DIAGRAM
TERMINAL BOARD
Y TERMINAL
MALE CONN
FEMALE CONN
YY
Y
B BLACK
L BLUE
G GREEN
O ORANGE
R RED
W WHITE
COLOR CODE
LEGEND
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).
MH170FAVT - WIRING CHART
PART
NO.
COLOR
LENGTH
FROM
TO
1100
White
7"
Valve
Terminal Block
1040
Black
6"
On/Off Switch
Terminal Block
1226
Red-(Hi-Temp)
16 1/2"
High Limit Switch
Valve
1226
Red-(Hi-Temp)
16 1/2"
High Limit Switch
Terminal Block
1070
Orange
11"
Flame Control
Spark Plug
(Ignition)
1959
Green
7"
Flame Control
Ground
(Harness)
1959
Red
7"
Flame Control
Terminal Block
(Harness)
1959
White
6"
Flame Control
Terminal Block
(Harness)
1959
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 ususally 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 controled 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