Honeywell T6812A1000 Digital Thermostat Installation Guide
- June 7, 2024
- Honeywell
Table of Contents
Honeywell T6812A1000 Digital Thermostat Installation Guide
CAUTION: ELECTRICAL HAZARD. Can cause electrical shock or equipment
damage.
Disconnect power before removing cover.
Terminal Designations
| Terminal | Description |
|---|
L
| Live
Ch/Cc
| Heating close / Cooling close
W/Y
| Heating open / Cooling open
N
| Neutral
GI
| Low fan speed
Gm
| Medium fan speed
Gh
| High fan speed
Wiring
-
Typical wiring for ON / OFF control in 2 pipe systems (VC4 valves)
-
Typical wiring for ON / OFF control in 2 pipe systems (VC6 valves)
Thermostat Installation
Installer Parameters Table
| N o | Parameter | Setting |
|---|---|---|
| 1 | System type | 0 = 2 pipe system, heat only |
1 = 2 pipe system, cool only
2 = 2 pipe system, heat or cool, manual changeover (default)
9| Temperature Scale| 0 = °F
1 = °C (default)
13| Cycles Per
Hour value for HEATING| 1 – 12 (default = 4)
14| Cycles Per
Hour value for COOLING| 1 – 6 (default = 3)
18| Temperature display offset| -2.0°C to +2.0°C increment 0.5°C
/ -4°F to +4°F increment 1.0°F
(default = 0°)
19| Temperature display mode| 0 = Display room temperature (default)
1 = Display setpoint
20| Heating range stops| 10 – 32°C ( default maximum
= 32°C ) / 50 – 90°F ( default maximum = 90°F )
21| Cooling range stops| 10 – 32ºC ( default minimum = 10ºC ) / 50 – 90ºF ( default minimum
= 50ºF )
22| Keypad lockout| 0 = All keys available (default)
1 = All keys locked
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>