Download Erie™ Digital, On/Off Thermostat

T200 Series
Erie™ Digital, On/Off Thermostat
T200 Serie
T200 series thermostats provide temperature
control on a variety of heating, cooling and single
stage heat pump applications.
The large LCD window displays room temperature
including 1/5th of a degree increments indicated by
a series of up to 5 dashes. The system heat output
cycles on a 1 or 2F degree field selectable
differential. The cool output differential is fixed at
2F degrees. The setpoint is displayed and changed
by pressing one of the setpoint buttons up or
down. Installation is simplified by having all of the
field wires mounted to the separate wall plate.
Features:
• LCD window display, qF standard, qC configurable.
• Jumper selectable 5 minute time delay for heating and
cooling application.
• Mechanical contact for low limit protection (optional).
• Base adaptor plate standard.
Model Chart
Control Outputs
Fan Controla
System Switcha
Changeover
Mechanical Contact
B & O Terminals
T201
Heating Only
None
Heat/Off
None
No
No
T201-FPb
Heating Only
None
Heat/Off
None
Yes
No
T204
Cooling Only
On/Auto
Cool/Off
None
No
No
T205
Cooling & Heating
On/Auto
Cool/Off/Heat
Manual
No
No
T205-FPb
Cooling & Heating
On/Auto
Cool/Off/Heat
Manual
Yes
No
T207
Cooling & Heating
On/Auto
Cool/Off/Heat
Manual
No
Yes
T207-FPb
Cooling & Heating
On/Auto
Cool/Off/Heat
Manual
Yes
Yes
Model No.
a
Fan switch operates independent of system switch unless relays are added.
b
Low limit protection, at 40qF the thermostat mechanically latches heat with output.
220
T200 Series
Specifications
Inputs
20 to 32 Vac, 75 mA to 1.2 amps (power-stealing thermostat, 75 mA required at all times. 250:,
5 watt resistor may be needed).
Power input
Outputs
Electrical
Battery: Setpoint backup Energizer 357 or similar (battery included). 1.2 A inductive load max.
Setpoint range: 50 to 86qF (10 to 35qC).
Control ranges
Operating differential: Heating 1 or 2 F degrees field selectable, (0.6 or 1.1 C degrees), Cooling
2 F degrees (1.1 C degrees).
Material: Rigid vinyl.
Mechanical
Finish: Off-white.
Environment
Ambient temperature
limits
Shipping and storage: -4 to 125qF (-20 to 52qC).
Operating: 40 to 125qF (5 to 53qC).
Humidity
95% non-condensing.
Locations
NEMA Type 1.
Dimensions
Thermostat:4 H x 2-1/2 W inches (102 x 64 mm).
Thermostat base and adaptor plate: 4-3/4 H x 4-1/4 W inches (121 x 108 mm).
Agency Listing
None.
General Instructions
Refer to F-27027.
Typical Applications
24 VAC HEATING
TRANSFORMER
24 VAC
TRANSFORMER
RH
24 VAC
120 VAC
RH
RC
FACTORY
INSTALLED
JUMPER
W
Y
W
G
1
1 Optional 250W 5 watt resistor is needed
only if power drops below 75 milliamps.
24 VAC
120 VAC
1
HEATING
RELAY
REVERSING
VALVE
B
2
O
1
HEATING
RELAY
COOLING
RELAY
FAN
RELAY
Figure 1 T201 Wiring to Heating System With Single
Transformer.
2
Optional 250W 5 watt
resistor is needed only if
power drops below 75
milliamps.
Either the B or O output
will be connected to the
reversing valve. Terminal
A supplies 24V on a call
for cooling. Terminal B
supplies 24V on a call for
heat. Do not connect both.
Figure 2 T207 Wiring to Heating/Cooling System With
Single Transformer and Reversing Valve.
221
T200 Series
24 VAC HEATING
TRANSFORMER
24 VAC
TRANSFORMER
RH
FACTORY
INSTALLED
JUMPER
120 VAC
24 VAC
W
1
Y
HEATING
RELAY
W
G
REVERSING
VALVE
B
1 Optional 250W 5 watt resistor is needed
1
120 VAC
24 VAC
RC
RH
2
O
only if power drops below 75 milliamps.
1
HEATING
RELAY
COOLING
RELAY
2
FAN
RELAY
Optional 250W 5 watt
resistor is needed only if
power drops below 75
milliamps.
Either the B or O output
will be connected to the
reversing valve. Terminal
A supplies 24V on a call
for cooling. Terminal B
supplies 24V on a call for
heat. Do not connect both.
24 VAC HEATING 2
TRANSFORMER
24 VAC
TRANSFORMER
RH
RC
FACTORY
INSTALLED
JUMPER
1
Y
COOLING
RELAY
G
120 VAC
24 VAC
RC
120 VAC
24 VAC
W
Y
1
G
1
HEATING
RELAY
COOLING
RELAY
FAN
RELAY
1 Optional 250 Ohm 5 watt resistor is needed
2
FAN
RELAY
only if power drops below 75 milliamps.
Figure 3 T204 Wiring to Cooling System With Single
Transformer.
Optional 250W 5 watt
resistor is needed only if
power drops below 75
milliamps.
If one of the secondary
sides of both transformers
are grounded, grounded
sides must be connected
together.
Figure 4 T205 Wiring To Heating/Cooling System With
Single Transformer.
24 VAC HEATING 2
TRANSFORMER
RH
24 VAC
RC
FACTORY
INSTALLED
JUMPER
120 VAC
W
Y
G
1
HEATING
RELAY
COOLING
RELAY
FAN
RELAY
24 VAC COOLING 2
TRANSFORMER
120 VAC
1
2
AUTO
FAN
CONTROL
TH
HC
RH
RC
W
Y
G
B
O
Optional 250W 5 watt
resistor is needed only if
power drops below 75
milliamps.
If one of the secondary
sides of both transformers
are grounded, grounded
sides must be connected
together.
Figure 5 T205 Wiring To Heating/Cooling System With
Dual Transformer.
222
DISPLAY
HEATING OPERATING
DIFFERENTIAL
HEAT CONTROL TIME DELAY
COOL CONTROL TIME DELAY
Figure 6 Terminal Identification.