(2) OPEN THE THERMOSTAT

Use your hands to pull the thermostat face off of the base. Separate one side at a time. There are latches on either side of the thermostat.

If needed, the thermostat can be pried from the base by inserting a flat-head screwdriver (see Figure 3).

(3)MOUNT THE THERMOSTAT BASE TO THE WALL

1.Place the wire opening in the base over the wire entry

hole in the wall. Level the base (for appearance only)

Figure 4

and mark the screw locations. See Figure 4.

 

2. Use the supplied screws and wall anchors to mount

 

the thermostat to the wall. It is recommended that wall

 

CAUTION

Loss of internal programs may result from static discharge to thermostat circuit board. Avoid touching the circuit board and touch a grounded metal object before handling the thermostat.

Figure 3

 

anchors be used for installation to drywall/sheet rock.

 

• Drill a 3/16" hole for wall anchors.

 

• Drill a 3/32" starter hole for screws only.

3.

For junction box mounting, screws are field supplied.

 

The thermostat can be installed on a vertical j-box.

4.

Seal the wire entry hole(s) with caulk, drywall putty

 

or insulation to prevent drafts from inside the wall

 

cavity from affecting thermostat performance.

 

90-1027

INSERT SCREWDRIVER INTO 1 OF 4 SLOTS (2 ARE ON THE TOPSIDE, 2 ARE ON THE BOTTOM SIDE)

USE THE SCREWDRIVER TO SEPARATE THE HOUSINGS. REPEAT ON THE REMAINING 3 SLOTS. NOTE: THE HOUSINGS WILL NOT COMPLETELY SEPARATE. PULL THE HOUSINGS APART WITH YOUR HANDS TO COMPLETELY SEPARATE.

CAUTION

Minimize wire entry hole size and seal the hole – drafts from inside the wall could affect temperature readings.

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Aprilaire 8570 installation instructions Open the Thermostat, Mount the Thermostat Base to the Wall