Install Instructions

ManualsBrandsPeco Controls ManualsHeating SuppliesProportional Control 3 Speed Fan 2H/2C On/Off Thermostat, 0-10 VDC

PART I: INSTALL WALL PLATE

1. Position the wall plate on the wall with the directional arrow pointing up and

terminal blocks facing outward.

2. Pull equipment wires through the wall plate wiring passage.

3. Use a level to determine the best horizontal wall plate mounting position.

4. Mark positions of screw holes (two) with a pencil and remove wall plate.

5. Drill holes at pencil-marked locations (3/16” for drywall, 7/32” for plaster).

6. Insert the wall anchors in the holes, tapping them into place.

7. Mount the wall plate onto the wall and insert screws through mounting holes.

Assure that all loose wires come through the center opening of the wall plate.

Note: Do not over-tighten screws or use excessive force. This can cause

the wall plate to warp and may cause intermittent connections between

the base and the thermostat.

8. Cap off any unused wires and terminate properly according to local building

codes.

PART II: ATTACH WIRES TO THERMOSTAT WALL PLATE

1. Select the terminal designations that correspond to the system type.

2. Using a small athead screwdriver, loosen the screws on the terminal blocks,

Strip the insulation of each wire at a proper length (about 1/4” or 64 cm) and

insert wires into the terminal blocks.

3. Assure that no uninsulated wires are exposed: Cap off and

place a wire-nut on any unused wires. Assure that the attached

wires t into the cavity on the back side of the thermostat.

PART III: CONNECT POWER TO THE THERMOSTAT WALL PLATE

1. The T8168 operates on 24VAC power.

2. Connect the common side of the transformer to the “24 VAC-1” terminal.

3. Connect power side to the “24 VAC-2” terminal.

NOTE: Wait at least one hour for the displayed temperature to stabalize.

PART IV: MOUNT THE T8168 ONTO THE WALL PLATE

1. Position the thermostat slightly above the mounted wall plate, then secure the

hooks on the back side of the thermostat to the hinge pockets on the wall plate.

Note: The top back side of the thermostat should slip into the hinge

pockets easily. Do not use excessive force.

2. Align the pins on the back side of the thermostat with the terminal blocks on

the wall plate.

3. Gently bring down the thermostat onto the wall plate so the pins on the back of

the thermostat t into the terminal blocks on the wall plate.

4. Attach the retaining screw to the underside of the thermostat as shown.

PART V: SET CLOCK, MONTH, AND DAY

When power is rst applied to the thermostat, it will activate the clock display.

It is recommended that time and day are entered before performing advanced

conguration. Setting the clock can also be accessed by selecting MORE then

CLOCK. Set clock as follows:

• ▲/ ▼= Arrows set selection. Note: The ashing option is the default selection.

• NEXT = Advances to next menu.

• Menu selections are: 12 to 24 hour format - Hour - Minutes - Year - Month - Day

• DONE = Press Done when operation is complete.

NOTE: Display of Clock is not available when congured for

non-programmable operation.

PART VI: VERIFY THERMOSTAT OPERATION WITH SYSTEM TESTS

System test verication is highly recommended to verify thermostat operation.

For all system tests, press Next to continue to the following system test, or next

available Service Menu. Press Done only if nished performing all system tests.

Pressing Done exits the Service Menus and turns off all active outputs. See

Service Menus: 600, 610, 620.

PART VII: REMOVE BATTERY INSULATOR TAB

Remove Insulator Tab after power is

applied.This tab protects onboard bat-

tery prior to installation. This battery

backups up the clock.

SM110 = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

1 Heat

1 Cool

1 Fan

2 Heat

1 Cool

1 Fan

1 Heat

1 Cool

3 Fan

2 Heat

1 Cool

3 Fan

2 Heat

2 Cool

2 Fan

Heat

Only

1 Fan

Cool

Only

1 Fan

Heat

Only

2 Fan

Cool

Only

2 Fan

Heat

Only

3 Fan

Cool

Only

3 Fan

Heat TWF

1 Cool

2 Fan

TWF Heat

1 Cool

3 Fan

TWF Cool

1 Heat

2 Fan

TWF Heat

TWF Cool

2 Fan

0-10

VDC

Only

ON-OFF Outputs

Y1 Cool 1 Cool 1 Cool 1 Cool 1 Cool 1 - Cool 1 - Cool 1 - Cool 1 Cool 1 Cool 1 Cool Open Cool Open -

W1 Heat 1 Heat 1 Heat 1 Heat 1 Heat 1 Heat 1 - Heat 1 - Heat 1 -

Heat

Open

Heat

Open

Heat 1 Heat Open -

Y2 - - FAN MED FAN MED COOL 2 - Cool 2 - Cool 2 FAN MED FAN MED Cool2 FAN MED

Cool

Cool Close -

W2 - Heat 2 - Heat 2 Heat 2 Heat 2 - Heat 2 - Heat 2 -

Heat

Heat 2 Heat Close -

G FAN FAN FAN HI FAN HI FAN HI FAN FAN FAN HI FAN HI FAN HI FAN HI FAN HI FAN HI FAN HI FAN HI -

G1 Damper Damper FAN LO FAN LO FAN LO Damper Damper FAN LO FAN LO FAN LO FAN LO FAN LO FAN LO FAN LO FAN LO Damper

0-10

VDC

YD Cool 1 Cool 1 Cool 1 Cool 1 Cool 1 - Cool 1 - Cool 1 - Cool 1 Cool 1 Cool 1 Cool 1 Cool 1 Cool 1

WD Heat 1 Heat 1 Heat 1 Heat 1 Heat 1 Heat 1 - Heat 1 - Heat 1 - Heat 1 Heat 1 Heat 1 Heat 1 Heat 1

SYSTEM TYPE: Service Menu 110 Output Conguration

• When System Fan Type (SM112) is set to 1 or 2 (0-10 VDC operation), the GD output is the only fan oputput and G1 provides Damper operation.

• When Fan Coil 2-Pipe operation is selected the W1 and WD outputs will be disabled. See SM 171.

Insert

wires into

appropriate

terminal

blocks.

Enlarged area

shows wire

insertion point at

terminal block.

Secure hooks

on back side of

thermostat to

wallplate.

Retaining screw