Mr. Heater How Much Heat Do I Require?, Btu’S Per Hour Required, Model #170FAVT, Color Code

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#

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)*
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 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		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 #170FAVT
			wIRINg DIAgRAM
	G	GAS		B					SPARK PLUG
		VALVE		W					G
CHASSIS						B			CHASSIS
							LINE		GROUND
GROUND				B
	G					HIGH-LIMIT SWITCH X2
		MOTOR
						Y
				B
							VALVE
						Y
CHASSIS						R	NEUT
GROUND
			R
						W	GRD
		THERMOSTAT						FLAME CONTROL
		LINE CORD		B	W		G	CP MARK 10DN
				G
				CHASSIS		CHASSIS
				GROUND		GROUND

COLOR CODE

B - BLACK	R -RED
L - BLUE	W - WHITE
G - GREEN
O - ORANGE

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)

Operating Instructions and Owner’s Manual E-6 Force-Air Propane Construction Heater