Robertshaw 300-227 - Manual (Page 2)

Terminal Designations
Specifications
Electrical rating: 24 Volt AC (20-30 VAC)
0.05 amp - 0.75 amp per output
3 Amp total maximum load (all terminals combined)
Temperature control range:
Heating: 40° - 88°F (6° - 30°C)
Cooling: 60° - 108°F (16° - 40°C)
Accuracy: +/-1°F at 68°F (0.5°C at 20°C)
Auto Changeover deadband: 2°F (1°C)
Temporary temperature override: 3 hours maximum
Remote sensor capable: Up to 6 remote sensors
System configuration: multi-stage heat pump systems (up to 2 stages
of heat, 1 stage cool) or multi-stage gas, oil, or electric heating/cooling
(3 stages of heat, 2 stages of cooling
Other Multi Stage
Heat Pump Thermostats
9520: Digital, Non-Programmable
9620: Programmable, 7 Day
9720: Deluxe Programmable, 7 Day
300-202: Digital, Non-Programmable
300-208: Digital, Non-Programmable
300-226: Deluxe Programmable, 7 Day
Architectural / Engineering
Specification
The thermostat shall be a Robertshaw Model 300-227 or equivalent. The
thermostat shall have seven-day programmability with up to 4 time/temperature
changes per day. The thermostat will allow temporary temperature override for a
maximum of 3 hours or the next setpoint time, whichever occurs first. The
thermostat shall allow the user to program the system fan separately for
continuous or automatic operation for each of the 4 time setpoints per day to meet
local application and code requirements.
It shall be capable of operating with standard 24 VAC heat pump systems with up
to 2 stages of heat and 1 stage of cooling or 3 stages of heat and 2 stages of
cooling for gas, oil or electric heating and/or electric heating /cooling systems. The
thermostat shall have an electrical rating of 0.75 amp maximum load per terminal,
3 amp total maximum load for all terminals combined. The thermostat shall have
relay outputs with standard 24 VAC control circuits and be equipped with back-up
circuitry to prevent loss of programming in memory during power outages.
The thermostat shall have automatic changeover capability to allow the thermostat
to determine whether the heating or cooling program should be used to control
room temperature.
The keypad and case shall have an integral lock to prevent tampering and/or
the altering of the program. The switching voltage shall be independent of the
heating and cooling system transformer. The thermostat will provide remote sensor
capability for up to six temperature sensors (including main thermostat sensor).
The thermostat shall be equipped with a 5-minute delay on break for compressor
short cycle protection during cooling operation to prevent compressor damage.
300-227
Shipping Information
Indiv. Ctn. Dim.: 4.75” x 6” x 1.75”
Master Ctn. Qty.: 20
Master Ctn. Dim.: 10" x 6.25” x 17.5"
Master Ctn. Cu. Ft.: .64
Master Ctn. Wt.: 15 lbs.
Max. Pallet Qty.: 1120
Max. Pallet Wt.: 860 lbs. Item 10-528 & 10-529 Remote Sensors
Indiv. Ctn. Dim.: 4.75” x 6” x 1.75”
Master Ctn. Qty.: 40
Master Ctn. Dim.: 10" x 12.5” x 17.5"
Master Ctn. Cu. Ft.: 1.28
Master Ctn. Wt.: 14 lbs.
Distributed by:
DELUXE
PROGRAMMABLE
THERMOSTAT
White-Rodgers Company* 1F91, 1F92, 1F94
Honeywell, Inc.* T7300D2002, T7300F2010
* Verify specific application requirements before substitution.
THE ROBERTSHAW
300-227
REPLACES:
Optional Remote Sensors:
INDOOR OUTDOOR
10-528 10-529
W2
Heating
Relay
(2nd Stage)
W1
Heating
Relay
Y2
Cooling
Relay
(2nd Stage)
Y1 G
Fan
Relay
Cooling
Relay
R 24V 24V(C) O B
24 VAC
Equipment
Transformer
Independent
Switching
Voltage
Cool Active
Reversing
Valve
24 VAC
Equipment
Common
Heat Active
Reversing
Valve
LED1
Selectable
Function
Indication
RS2 LED2 RS1 RS+V
Outdoor/Indoor
Sensor
NO COM NC
Occupancy Relay
Coil, De-energize
during night event
®
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©2003 Climate Controls Americas 6/03 - #150-1557B