Enerco How Much Heat Do I Require?, Btus Per Hour Required, MH170FAVT - WIRING CHART

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.

BTU'S PER HOUR REQUIRED

Cubic feet		Temperature Rise Required (oF)*
of space to
be heated		20o	30o	40o	50o
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

WARNING: When using a thermostat controled 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		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

Model-MH170FAVT

WIRING DIAGRAM

	COLOR CODE			LEGEND
B	BLACK	R RED		TERMINAL BOARD
L	BLUE	W WHITE	YY	Y TERMINAL
G GREEN				MALE CONN
O ORANGE			Y FEMALE CONN

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)

Mr. Heater Forced-Air Propane Construction Heater 6 Operating Instructions and Owner’s Manual