COPELAND 026-1739 Programmable Touchscreen Thermostat User Manual
2.3.2 Mounting the Baseplate on the Wall
2.4 Wiring and Connections
Turn off power of the HVAC system at
the main power panel or on the
controlled-system itself to avoid any
electrical shock or damage to the
system.
WARNING
2.4.1 Wiring Guide - Conventional Systems
(24VAC)
Figure 2-3 - Baseplate (Back view)
Single Transformer System:
To fix the baseplate on a wall, pass the wires through the
opening of the baseplate, and use either 2x self-taping screws
and dry-wall anchors, or regular 6-32 machine screws to
attach on a standard single-gang electrical junction
box (2” x 4”).
Table 2-5 - Single Transformer System
2H / 2C System with 1 Transformer
R
24VAC Power Supply
Shorting
Jumper
Do not over-tighten the screws when
attaching the baseplate on a wall as
physical damage may occur.
Rc
24VAC Power Supply for Y1,Y2
CAUTION
C
Y1
Y2
W1
W2
G
24VAC Power Supply Common
Cool Stage 1, relay output
Cool Stage 2, relay output
Heat Stage 1, relay output
Heat Stage 2, relay output
Fan Control, relay output
Keep the thermostat housing and
vents clean and free of any debris to
avoid malfunction of the device.
CAUTION
2.3.3 Wires and Electrical Connection
Once the baseplate is affixed on the wall, proceed with the
wiring connections to the terminal block. Please refer to
Section 2.4, Wiring and Connections for configuration and
signals definition.
Dual Transformer System:
Table 2-6 - Dual Transformer System
2H / 2C System with 2 Transformers
R
Rc
C
24VAC Power Supply
24VAC Power Supply for Y1, Y2
24VAC Power Supply Common
Cool Stage 1, relay output
Cool Stage 2, relay output
Heat Stage 1, relay output
Heat Stage 2, relay output
Fan Control, relay output
Y1
Y2
W1
W2
G
Figure 2-4 - Baseplate with Terminal Blocks Labels
For systems with only one stage, second stage terminals (Y2, W2) can be left
floating (open).
026-1739 R4 Programmable Touchscreen Thermostat
4
©2024 Copeland LP.
| General | Details |
|---|---|
| Name | COPELAND 026-1739 Programmable Touchscreen Thermostat User Manual |
| Make | Copeland |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.72 MB |
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