Enviro 50-1221 technical manual To install the Optional slider damper rod, remove the left

Installation

THERMOSTAT INSTALLATION:

A) HI / LOW:

When the jumper is placed on only one of the J9 pins, then the control board is in a HI / LOW mode of thermostat operation (factory setting).

B) ON / OFF:

If both pins of J9 are jumped (covered), the control board is in an ON / OFF mode of thermostat operation.

Thermostat wires.

Figure 25: Circuit Board.

This control board can be placed into two different modes: When the jumper J9 is not jumped then the control board is in a HI / LOW mode operation. If the control board is placed with J9 jumped then the control board is in a ON / OFF mode of operation. In the ON /OFF thermostat mode, the unit will shut OFF when the thermostat is not calling for heat. When the thermostat calls for heat, the unit will go through an ignition sequence once again and relight.

1.Install the wall thermostat in a location that is not to close too the unit but will effectively heat the desired area.

2.Install a 12 or 24 Volt Thermostat using an 18 x 2 gauge wire from the unit to the thermostat.

If the unit has been placed in the HI / LOW mode, the unit will be taken to a low or idle setting when the thermostat is not calling for heat. When the thermostat calls for heat, the unit will go to the setting that is displayed on the control board Heat Indicator. If the heating load is not great enough when the stove is on low, the high limit switch will turn the stove off and the switch will have to be manually reset. To reset the high limit switch, remove the right cabinet side. The switch is found behind the control panel. Avoid setting off the high limit switch.

OPTIONAL SLIDER/DAMPER INSTALLATION:
If you wish to adjust the slider damper externally
(NOT REQUIRED), please follow the instructions
below.		Slider damper
		rod and knob
		7/16" Nut
	Slider damper plate	7/16" Clinching Nut
	Figure 26: Slider/Damper Assembly.
	1. To install the OPTIONAL slider damper rod, remove the left
	cabinet side and locate the slider damper plate. Install the 7/16”
	inch nut onto the slider damper rod, thread all the way to the
	end of the threads on rod.
Slider/Damper	2. Slide rod through the hole in the slider damper plate and install
Knob	the 7/16” clinching nut onto the rod and tighten completely onto
	the slider damper plate.
	3. Re-install the cabinet side. Install the black knob on the end of
	the rod. Check slider damper for smooth operation.
Figure 27: Slider/Damper Knob.

18