Ventilation, Outdoor Installation only

Installation (contd.)

VENTILATION

OUTDOOR INSTALLATION ONLY

For outdoor installation with built in vent top, the heater must be placed in a suitable area on a level, noncombustible surface. Do not install the heater under an overhang with clearances less than 3 feet from the top of the heater. The area under an overhang must be open on three sides.

IMPORTANT!

In an outdoor installation it is important to protect your heater from water damage. Ensure water is diverted from overhanging eves with a proper gutter/ drainage system. The heater must be set on a level foundation for proper rain drainage.

Maintain minimum clearances as indicated below. Install a minimum of 4 feet below, and 4 feet horizontally from any opening to a building.

The heater should not be installed closer than 6 inches to any fences, walls or shrubs at any side or back, or any combustible material, nor closer than 18 inches at the plumbing side. A minimum clearance of 24 inches must be maintained at the front of the heater.

	6"
DOOR	6"
	6"
24"
	18"

Figure 12.

IMPORTANT!

When locating the heater, consider that high winds can roll over or deflect off adjacent buildings and walls. Normally, placing the heater at least three feet from any wall will minimize downdraft.

Unusually high prevailing wind conditions and downdrafts may require the use of a stack type outdoor vent kit (available at additional cost).

NOTE

This unit shall not be operated outdoors at temperatures below 0o F. for propane and -20oF. for natural gas.

STACK TYPE OUTDOOR VENT KIT

Model	Vent Cap	Product No.	Vent Dia.
150	OV15	460237	6 in.
200	OV20	460222	7 in.
250	OV25	460223	7 in.
300	OV30	460224	8 in.
350	OV35	460225	9 in.
400	OV40	460226	10 in.	Table 11.
				Table 11.
	Outdoor Stack

Top Cover

Flue Adaptor

Inner Panel

Flue Collector

Figure 13.

Figure 14.

OUTDOOR VENT CAP INSTALLATION

The MiniMax CH heater is shipped standard as an outdoor stackless unit. To install the outdoor vent kit:

1.Take out the louvered outer top after first removing all 1/4 in. sheet metal screws attaching it along its perimeter to the cabinet. Set it aside.

2.Place the flue adaptor over the flue collector opening. Temporarily, put the top cover, from the kit, on with the label to the front of the heater. Center the flue adaptor evenly inside the top cover flue stack opening. Remove the top cover and secure the centered flue adaptor to the inner panel with the provided #8 x 1/2 in. drill qwik screws.

3.Place the top cover, with the hole for the stack, on the heater cabinet.

4.Install the vent stack through the hole in the top cover, over the flue adaptor top ring.

5.Using a 3/32 in. drill bit, position the “L” bracket to hold the top cover and outdoor stack. Drill the pilot holes through the “L” bracket holes to accept the screws.

6.Secure the vent stack and the inner top with the #8 x 1/4 in. sheet metal screws through the “L” brackets.

P/N 472128

Rev. B 1-17-03

CH specifications

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