SAVANT CLI-W220X-00 Multistat Smart Thermostat User Guide
Making Connections
When making connections, follow the guidelines set below to ensure a safe and secure connection.
1.
With a small slotted screwdriver, turn the screws
in the connector counterclockwise (CCW) until the
silver crimps open enough to slide the wire(s) into the
square slots.
2.
3.
Strip back insulation on each wire to 1/4 inch and insert
the stripped wire into the proper connection.
< 1/8 inch
bare wire
exposed
Turn screws clockwise (CW) until the crimps tighten
around each wire. Gently tug on each wire to verify
they are secure.
Connect Power - One Transformer used to power the HVAC system
The CLI-W220x does not run on batteries and requires a separate power source to operate. To power the thermostat,
voltage must be applied between the RC and 24C terminals. When replacing an existing thermostat, if the power
wires removed from the old thermostat were from the R and C terminals, use the diagram below to make the
connections.
RC - Connect the wire removed from the R terminal of the old thermostat to
the RC terminal. On new installations, connect the wire from the 24V AC HVAC
transformer to the RC terminal.
24C - Connect the wire removed from the C (common) terminal of the old
thermostat to the 24C terminal. On new installations, connect the common wire
from the 24V AC HVAC transformer to the 24C terminal.
Connect Power - Two Transformers used to power the HVAC system
When an HVAC system uses separate power sources (two transformers) to run the heating and cooling HVAC
systems, the HVAC system contains three power wires (R, C, and RC). Adjustments to accommodate the separate
power sources are described below.
Powers Relays
W1, W2, and O.
Jumper shunt JP1 on the thermostat’s PCB board connects the RH and RC
terminals. Each thermostat shipped from the factory comes with this jumper
Powers Relays
Y1, Y2, and G.
shunt installed. With the shunt installed, one transformer, wired as described
in the previous section, is needed. Remove the jumper shunt when the HVAC
system contains separate transformers and make the connections described in
the section below.
JP1
REMOVE SHUNT
Common wire
from HVAC.
RH - Supplies power to the relays connected to terminals
W1, W2, and O.
RC - Supplies power to the relays connected to terminals Y1,
Y2, and G. RC terminal is also used to power the thermostat.
Power wire from
HVAC cooling.
24C - Common terminal. The common wire from the HVAC
system is required for thermostat to run.
Power wire from
HVAC heating.
Multistat Smart Thermostat Quick Start Guide | 009-2428-01
3
of
8
45 Perseverance Way, Hyannis MA 02601
Savant.com | 508.683.2500
Copyright ©2025 Savant Systems, Inc
|
240318
| General | Details |
|---|---|
| Name | SAVANT CLI-W220X-00 Multistat Smart Thermostat User Guide |
| Make | SAVANT |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.32 MB |
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