Automated Logic RC642D User Manual

48
Hardware Points
Point Name
AI
BI
BO
AO
I/O #
Comments
Fan start/stop X DO-3 (G) Relay output
Supplemental heat
stage 1
X DO-4 (W1) Optional – Relay output
Supplemental heat
stage 2
X DO-5 (W2) Optional – Relay output
Reversing valve X DO-6 Relay output. Closed = Heating
Mixed air dampers X AO-1 Optional – 0–10 Vdc
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.
Zone unoccupied override
The occupant can press a button to override the schedule and place the unit in occupied
mode for 30 minutes. Each additional press of the button adds 30 minutes, to a
maximum of 90 minutes. When the override time ends, the schedule controls the unit
again.
Discharge temperature limit control (optional)
The unit monitors the discharge temperature and limits the heating or cooling outputs as
follows:
Mode
Discharge
Temperature
Capacity
Limit
Outside Air
Damper Limit
Heating 110°F (43°C) 0% N/A
100°F (38°C) 100% N/A
Cooling 48°F (9°C) 100% 100%
40°F (4.5°C) 0% 0% OA
Sequence of
operation

Automated Logic RC642D Specifications

General

Brand	Automated Logic
Model	RC642D
Category	Controller
Language	English