Honeywell TC500A Quick Start Guide

TC500A COMMERCIAL THERMOSTAT
31-00398M-02 | Rev. 04-21 4
Terminal Identification
Fig. 1. Terminals
Thermostat Variants
Accessories
Table 9. Terminal Identification
Terminal Label Connection
24VAC
R
24VAC power from heating
transformer
C
24VAC common (Neutral). For 2
transformer systems, use
common wire from cooling
transformer
UIO1
1 Universal input/output
COM Common
UIO2
2 Universal input/output
COM Common
UI1
1 Universal input
COM Common
UI2
2 Universal input
COM Common
Sylk
(S-BUS)
Sylk bus, master, power output
Sylk bus, master, power output
RS485
+
BACnet Communications (coming
soon)
_
BACnet Communications (coming
soon)
R-RC
Jumper between R and RC for
single transformer system
24VAC
RC
24VAC power from cooling
transformer
G Fan
Y1
Relay output, Compressor
contactor (stage1)
Y2
Relay output, Compressor
contactor (stage2)
Y3
Relay output, Compressor
contactor (stage3)/Configurable
Output
W1 Relay output, Heat (stage1)
W2 Relay output, Heat (stage2)
W3
Relay output, heat
(stage3)/Configurable Output
Aux
Relay dry contact, Aux-1
Relay dry contact, Aux-2
Table 10. Thermostat Part Numbers
TC500A-N Thermostat with North
American Wi-Fi
conformance
TC500A-W
(coming soon)
Thermostat with outside
of North American Wi-Fi
conformance
Table 11. Accessories Part Numbers
Decoplate-N TC500 deco plate for NA
junction boxes
Decoplate-W TC500 deco plate for
Globe junction boxes
Table 9. Terminal Identification
Terminal Label Connection

Honeywell TC500A Specifications

General

Brand	Honeywell
Model	TC500A
Category	Thermostat
Language	English