Product Overview -

Premier 7-Day Programmable Thermostats
Standard (Gas/Electric/Oil)
up to 2Heat / 2Cool
Heat Pump (Standard and Dual Fuel)
up to 3-Heat / 2-Cool
Advanced Remote Bus with up to
10 Remote Sensors; up to 6 Indoor,
1 Outdoor, and 3 Auxiliary
The RS300P Premier Programmable series of thermostats from Robertshaw are designed for new and replacement
commercial or residential applications. The RS300P family has a beautiful new blue backlight and secondary display for the
remote sensor bus. The RS300P family thermostats are direct replacements for the Robertshaw 300 series programmable
products. They can be configured to control conventional HVAC equipment or heat pump equipment with both traditional and
dual fuel heat pumps. The pushbuttons on the thermostat can be locked to give restricted override capabilities, and the
optional Occupancy Sensor enables automatic energy savings. The advanced remote sensor bus allows up to 6 indoor
remote sensors, an outdoor sensor, and up to 3 auxiliary sensors for needs such as supply air, return air, water temperature,
walk-in freezers and refrigerators, and any other temperature monitoring desired.
2H/1C – Gas, Elec, Oil, Heat Pump
3H/2C – Gas ,Elec, Oil, Heat Pump, w/Economizer
3H/2C – Gas, Elec, Oil, Heat Pump, w/Economizer, & Humidity Control
300-225, 300-226
300-227, 300-229
300-227, 300-229
7-Day Programmable, 5-2 Day Programmable or Manual Operation
Auto Heat/Cool Changeover, Heating Only or Cooling Only Control
Intuitive Setup Menu for Easy Configuration of Options
Fan Selector for Automatic, Continuous or Recirculation Fan Operation
Adjustable Fan Purge Timer to Use All Conditioned Air at the End of a Heating or Cooling Call
Adjustable Min/Max Heating and Cooling Setpoint Limits
Room Sensor and Remote Sensor Calibration Offset
Commercial Lockout Mode with adjustable 0 to 24 Hour Override in 10min Increments
Resume Button for Cancelling Commercial Override
+/- 3°F (1°C) or +/-5°F (2°C) Restricted Temperature Adjustment in Commercial Lockout Mode
2 Occupied (Day-Cool & Day-Heat) and 2 Unoccupied (Night-Cool & Night-Heat) Setpoints
Adjustable Balance Points for Heat Pump Compressor and Aux Heat Lockout when Used with Outdoor Sensor
Selectable Fahrenheit or Celsius Display
Lockable Access Cover
HVAC equipment control using dry contact relays
Two Digital Inputs with LEDs: LED1 (Green - Filter) and LED2 (Yellow – Fault) with or without LCD icon indications
LED3 (Red - Emergency Heat; HP Operation Only)
Setback Input for Use as Occupied/Unoccupied Trigger with Optional Occupancy Sensors (Ceiling and Wall Mount)
Advanced Remote Sensor Bus Sensors allow up to 6 Indoor, plus Outdoor, Aux1, Aux2, and Aux3
(think supply air, return air... all on a 3-wire bus
Random Restart on power up randomly staggers restart of HVAC system after a power outage to
minimize peak in-rush current for any installation
Economizer Control on RS332PE and RS332PEH
Humidity Control on RS332PEH
© 2016 Robertshaw Climate, Grapevine, TX
Rated Voltage:
Rated A.C. / D.C. Current:
Control Range:
Thermostat Sensing Range:
Minimum Deadband:
Thermostat LEDs:
Equipment Terminations:
Power Terminations:
Input Terminations:
Occupancy Terminations:
Remote Sensor Terminations:
20V to 30VAC, 24VAC nominal
0.05 to 0.75 AC / 0.0 to 0.75 DC Amp continuous, per output, surges to 3 Amps max.
Heating: 38 to 88°F (6 to 30°C) in 1° steps Cooling: 60 to 108°F (16 to 40°C) in 1° steps
20 to 124°F (0 to 48°C)
Control Accuracy: +/-1°F @ 68°F (0.5°C @ 20°C)
(between Heat and Cool) 2°F (1°C)
4.5”H x 4”W x 1”D (114mm x 102mm x 26mm)
Red – Emergency Heat, Yellow – Fault, Green – Filter
R - 24V switching voltage, W1 - Heat1 or Aux/Emer Heat, G - Fan, Y1-Compressor1,
Y2 - Compressor2, O/W2 - Heat2 or Rev. Valve in Cooling, B-Rev. Valve in Heating
24V - remote power by removing jumper, 24V(c) - power common
(from HVAC equipment)
LED1 (Green LED / Filter Icon), LED2 (Yellow LED / Fault Icon)
CLK1 ( + ), CLK2 ( - )
RS+V - Power, RS2 - Return, RS1 - Data
Not all terminals available on all models.
See thermostat manuals for specific wiring options.
Download PDF