Automated Logic RC642D User Manual

83
Hardware Points
Point Name
AI
BI
BO
AO
I/O #
Comments
Zone temp X Internal
Zone setpoint
adjust
X Internal
Zone override X Internal
Outdoor air temp X UI-1 Optional – Requires sensor
(Type II thermistor)
NOTE
Short input to ground if
not used.
Discharge air temp X UI-2 Optional – Requires sensor
(Type II thermistor)
Freezestat X UI-3 Optional – Requires sensor
(dry contact)
Cooling stage 1 X DO-1 (Y1) Relay output
Cooling stage 2 X DO-2 (Y2) Optional – Use this output if 2-
stage cooling is present
Fan start/stop X DO-3 (G) Relay output
Heating stage 1 X DO-4 (W1) Optional – Use this output OR
Heating stage 2
hot water valve
X DO-5 (W2) Optional – Use this output if 2-
stage heating is present
Fan second speed X DO-6 Connect this output to DO-3 if
using a single-speed fan
Mixed air dampers X AO-1 0–10 Vdc
Hot water valve X AO-2 Optional – 0–10 Vdc
Use this output
OR staged
heating
Run conditions - scheduled
User-defined schedules determine when the unit runs in:
• Occupied Mode
The unit maintains a 74°F (23.5°C) adjustable cooling setpoint and a 70°F (21°C)
adjustable heating setpoint.
• Unoccupied Mode (night setback)
The unit maintains an 85°F (29.5°C) adjustable cooling setpoint and a 55°F (13°C)
adjustable heating setpoint.
Zone setpoint adjust
The occupant can adjust the heating and cooling setpoints at the zone sensor.
Point list
Sequence of
operation

Automated Logic RC642D Specifications

General

Brand	Automated Logic
Model	RC642D
Category	Controller
Language	English