Home > PECO > PECO T8168B-2 BACnet Proportional Thermostat Installation Guide

PECO T8168B-2 BACnet Proportional Thermostat Installation Guide

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PART I: INSTALL WALL PLATE

PART IV: MOUNT THE T8168 ONTO THE WALL PLATE

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

terminal blocks facing outward.

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 ﬁt into the terminal blocks on the wall plate.

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

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 ﬂathead 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.

Secure hooks

on back side of

thermostat to

Retaining screw

wallplate.

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

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

wires ﬁt into the cavity on the back side of the thermostat.

PART V: SET CLOCK, MONTH, AND DAY

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

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

conﬁguration. Setting the clock can also be accessed by selecting MORE then

CLOCK. Set clock as follows:

• ▲/ ▼= Arrows set selection. Note: The ﬂashing 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 conﬁgured for

non-programmable operation.

Insert

wires into

appropriate

terminal

blocks.

Enlarged area

shows wire

insertion point at

terminal block.

PART VI: VERIFY THERMOSTAT OPERATION WITH SYSTEM TESTS

System test veriﬁcation 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 ﬁnished performing all system tests.

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

Service Menus: 600, 610, 620.

PART III: CONNECT POWER TO THE THERMOSTAT WALL PLATE

1. The T8168 operates on 24VAC power.

PART VII: REMOVE BATTERY INSULATOR TAB

2. See Terminal Block Designations on page 1 for connection of 24 VAC

3. Typical wiring diagrams are in the back for reference.

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

Remove Insulator Tab after power is

applied.This tab protects onboard bat-

tery prior to installation. This battery

backups up the clock.

SYSTEM TYPE: Service Menu 110 Output Conﬁguration

SM110 =

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 TWF Heat

TWF Cool

1 Heat

2 Fan

TWF Heat

TWF Cool

2 Fan

0-10

VDC

Only

1 Cool

2 Fan

1 Cool

3 Fan

Cool 1

Heat 1

Cool 1

Heat 1

FAN MED

Cool 1

Heat 1

Cool 1

Heat 1

COOL 2

Heat 2

Cool 1

Cool Open

Heat 1

Cool Open

Heat Open

Cool Close

Heat Close

Heat

Open

Heat

Open

Heat 1

Cool 2

Heat 1

Cool 2

Heat 1

FAN MED

Heat 2

Cool

FAN MED

Heat 2

FAN MED

Cool2

FAN MED

Heat

Heat 2

FAN

FAN HI

FAN

FAN HI

Damper

FAN LO

Damper

FAN LO

Damper

Cool 1

Heat 1

Cool 1

Heat 1

Cool 1

Heat 1

Cool 1

Heat 1

Cool 1

Heat 1

Cool 1

Heat 1

Cool 1

Heat 1

Cool 1

Heat 1

Cool 1

Heat 1

Cool 1

Heat 1

• 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.

P/N 74599 3220-2406 REV 00

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General	Details
Name	PECO T8168B-2 BACnet Proportional Thermostat Installation Guide
Make	PECO
Language	English
Filetype	PDF (Download)
File size	0.42 MB

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PECO T8168B-2 BACnet Proportional Thermostat Installation Guide

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