Siemens RAB10.1U, RAB30.1U, RAB20.1U, RAB90.1U Tech Tips

Electric Fan Coil Thermostats

RAB…

RAB10.1U Thermostat with

manual changeover.

RAB20.1U Thermostat with
exposed setpoint knob and

external changeover.

Description

Designed to control 2- or 4-pipe fan coil or unit ventilators,
the RAB… Electric Fan Coil Thermostats are an attractive
and economical solution that utilize two-wire, gas
membrane technology.

Providing On/Off control, the RAB… Electric Fan Coil
Thermostats are available with dual scale Fahrenheit/
Celsius models with manual or external changeover.

The RAB20.1U requires an aqua sensor to initiate
changeover.

Features

• Fan Speed Switch (RAB90.1U) for remote switching
location (24...277 Vac)

• Two-point control algorithm for on/off control

• Line voltage

• 2-pipe or 4-pipe fan coil applications

• 3-speed fan control

• Fan on only models for ventilation

• Manual or external changeover

• Two mounting styles: electrical wall box or drywall

• Adjustable upper/lower limit stops

• Dual Fahrenheit/Celsius scale

RAB30.1U Thermostat with
exposed setpoint knob and

3-speed fan control.

RAB90.1U 3-speed

fan switch.

Applications

The RAB… Electric Fan Coil Thermostats are
recommended for applications in commercial or light
industrial buildings in conjunction with zone valves,
thermal valves, fans or thermostats.

Note:

ARG70, wall plate, is required for UL compliance in
switching line voltage.

A-37

Thermostats

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Specifi cations/Product Ordering

A-38

Operating Voltage ........................................................ 24…120, 277 Vac

Frequency ..............................................................................50 or 60 Hz

Setpoint Setting Range ....................................... 50 to 85°F (8 to 30 °C)

Switching Differential (SD) ................................................. <1.8°F (1°C)

Switch Rating ............................................... 6 A resistive, 3.5 A inductive,

Time Constant ...............................................................................14 min.

Operating Conditions

Temperature ...............................................14 to 122°F (-10 to +50 °C)

Relative Humidity ...................................................................<95% RH

Transportation Conditions

Temperature ..............................................-4 to +122°F (-20 to +50 °C)

Relative Humidity ...................................................................<95% RH

3-speed
Change- Vent- Fan Electric Wall
Application over ilation Control Switch Box1 Dry Wall

2-pipe Heating/Cooling/Ventilation Manual Yes Yes Heat/Cool/Vent RAB10.1UW RAB10.1U

RAB…

2-pipe Heating/Cooling/Ventilation Auto Yes Yes Heat/Cool/Vent RAB20.1UW RAB20.1U

4-pipe Heating/Cooling/Ventilation Manual Yes Yes Heat/Cool/Vent RAB30.1UW RAB30.1U

— 3-speed Fan Switch — — Yes — — RAB90.1U

Ordering Note

1. Includes wallplate, ARG70, to be UL compliant for switching line voltage.

3.5 FLA, 12 LRA

Description

Safety ............................................................................................. UL 873

Wiring ..........................................................Screw Terminals for Wires of

2 x 16 or 1 x 14 AWG, 20 AWG max.

Cover Color ..................................................................................... White

Shipping Weight ........................................................... 0.08 lb. (0.18 kg)

Accessories
& Service Kits

Part Nos.

A-77

Thermostats

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Dimensions

RAB... Room Thermostat and Wall Plate for Mounting

(RAB10.1U, RAB20.1U and RAB30.1U)

A-39

3.80

TH0721R1

(96.4)

Wall Plate (ARG70) for Mounting

RAB90.1U and Wall Plate for Mounting

3.92
(99.6)

1.53

(38.9)

(30)

1.181.18

(30)

TH0491R2

1.101.10

(28)

(28)

3.39
(86)

1.18 1.18
(30)

1.10
(28)

(30)

0.14
(3.6)

1.10
(28)

3.39

Thermostats

(86)

Dimensions shown in inches (mm).

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Engineering Drawings

Wiring Diagrams

A-40

Thermostats

RAB10.1U...

Key
L Operating Voltage
M1 3-speed Fan
N Neutral
N1 Room Thermostat

Heating Mode

RAB20.1U...

G1 Control Output Fan Speed I
G2 Control Output Fan Speed II
G3 Control Output Fan Speed III

Operating Diagrams

RAB30.1U...

ZV Zone or Thermal Valve
W/Y Control Output Actuator
AS Aqua Sensor

Cooling Mode

Key
T Room Temperature
SD Switching Differential
SP Room Temperature Setpoint

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W Valve Output Signal Heating
Y Valve Output Signal Cooling

Room Temperature Controllers
for Two-pipe Fan Coil Units

RCC…

RCC20U Room Temperature Controller.RCC10U Room Temperature Controller.

Description

The RCC... Room Temperature Controllers are room
temperature controllers for two-pipe fan coil units.

Features

RCC10U

• Output for on/off valve actuator

• Output for three-speed fan

• Dual setpoint temperature scale

• Control depending on the room or return air
temperature

• Automatic Heating/Cooling changeover

• Operating modes: Normal, Energy Saving, Frost
Protection and Off

• Operating mode changeover input for remote control

• Selectable control parameters

RCC20U

• Outputs for on/off valve actuator and electrical heater.

• Output for three-speed fan.

• Dual setpoint temperature scale.

• Control depending on the room or return air
temperature (remote sensing).

• Automatic Heating/Cooling changeover.

• Operating modes: Normal, Energy Saving, Frost
Protection and Off.

• Operating mode changeover input for remote control.

• Selectable control parameters.

Applications

The RCC... Series of Room Temperature Controllers
are typically used for:

• Controlling Normally Open (NO) 120 Vac,
two-position valves.

• Controlling room temperature in individual rooms that
are heated or cooled with two-pipe fan coil units.

• Switching an electrical heater (RCC20U).

• Operating a 3-speed fan.

The RCC... Series is suitable for systems with:

• Automatic Heating/Cooling changeover.

• Heating only/Cooling only or Heating and Cooling
applications.

A-41

Thermostats

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Specifi cations/Product Ordering

A-42

Operating Voltage .........................................................................120 Vac

Frequency ................................................................................... 50/60 Hz

Power Consumption ..........................................................Maximum 4 VA

Control Outputs (Fan) 11, 10, 9 ...120 Vac max./3A res./3.5 FLA/7.0 LRA

Control Output 3 ..................................................................... 0 to 10 Vdc

Resolution .................................................................................... 39 mV

Current ......................................................................................... ±1 mA

Signal Input 2 for Changeover Sensor ......................QAH11.1, Class 2,

Permissible Number of Thermostats ........ Ten in Parallel, Signal Input 3

Status Input D1 and GND

Contact Sensing ................................................... 6 to 15 Vdc/3 to 6 mA

Insulation against live voltage ......................................................... 4 kV

Operating Action ......................................................Normally Open (NO)

Permissible Cable Length with Copper
Cable 16 AWG for Connection to Signal Input 2,

D1, and GND ....................................................................... 262 feet (80m)

Setpoint Setting Range ....................................... 50 to 85°F (10 to 30°C)

Description Part No.

Two-pipe fan coil unit controller,
on/off output RCC10U

RCC...

Two-pipe fan coil unit controller with
additional electric heat; on/off output RCC20U

NTC resistor 3K Ω at 77°F (25°C)

Setpoint (Energy Saving Mode), Heating ............................ 61°F (16°C)

Setpoint (Energy Saving Mode), Cooling ............................ 82°F (28°C)

Operation

Temperature ...................................................... 32 to 122°F (0 to 50°C)

Humidity .................................................................................. <95% RH

Shipping and Storage

Temperature ............................................ –13 to +158°F (–25 to +70°C)

Humidity .................................................................................. <95% RH

Agency Approvals ......................................................................... UL 873

Certifi cation C22.2 No. 24-93

Conforms to CE Requirements

Connection Terminals .............. Solid Wires or Prepared Standard Wires

2 X16 AWG or 1 X14 AWG

Minimum 20 AWG

Housing Color

Cover .............................................................................. White and gray

Base ...............................................................................................Gray

Degree of Housing Protection .................................................... NEMA 1

Shipping Weight .............................................................. 0.5 lb. (0.23 kg)

cUL

Accessories
& Service Kits

A-77

Dimensions

Thermostats

RCC10U/20U Controller

1.38

1.10

(35)

(28)

1.18

1.10

(30)

(28)

0.46

(11.8)

TH0613R1

Dimensions are shown in inches (mm).

Baseplate

0.16 (4)

1.10
(28)

1.02
(26)

3.54
(90)

1.10
(28)

0.16
(4)

4.09
(104)

0.16 (4)

1.18
(30)

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Free Energy Band™ Room Temperature
Controller for Four-pipe Fan Coil Units

RCC…

RCC30U Room Temperature Controller.

Description

The RCC... Free Energy Band Room Temperature
Controllers are room temperature controls for four-pipe fan
coil units.

Features

• Outputs for on/off valve actuators

• Outputs for three-speed fan

• Dual setpoint temperature scale

• Control depending on the room or return air
temperature (remote sensing)

• Automatic Heating/Cooling changeover

• Operating modes: Normal, Energy Saving, Freeze
Protection and Off

• Operating mode changeover input for remote control

• Selectable control parameters

• Free Energy Band between Heating and Cooling for
energy conservation

Applications

The RCC... Series is typically used for the following
applications:

• Controlling room temperature in individual rooms that
are heated or cooled with four-pipe fan coil units.

• Opening or closing a Normally Closed (NC) Heating
and a Normally Open (NO) Cooling, 120 Vac, two­position valve.

• Switching a three-speed fan.

A-43

Thermostats

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Specifi cations/Product Ordering

A-44

Operating Voltage ........................................................ 120 Vac +10/-15%

Frequency ................................................................................... 50/60 Hz

Power Consumption ...........................................................Maximum 10A

Control Outputs (Fan) 12, 11, 10

7 and 9 ....................................................................120 Vac max./3A res./

3.5 FLA/7.0 LRA

120 Vac max./3A res./3.5 FLA/7.0 LRA

Control Output 5 (Common) ..................................120 Vac/7A maximum

Signal Input 1 for Return Air Sensor ..........................QAH11.1, Class 2

NTC resistor 3K @ 77°F (25°C)

Operating Action .............................................. Single-pole, Single-throw

Permissible Cable Length with Copper
Cable 16 AWG for Connection to

Terminals 1, D1, and GND ................................................ 262 feet (80 m)

Setpoint Setting Range ....................................... 50 to 85°F (10 to 30°C)

Maximum Control Deviation at 72°F (22°C) ..... Maximum ±1.5°F (0.7°C)

Switching Differential in Heating Mode SDH

(Selectable) ..................................................................2 or 7°F (1 or 4°C)

Switching Differential in Cooling Mode SDC ..........................1 or 3.5°F

(0.5 or 2°C) (selectable)

Dead Zone in Normal Operation .............................. 3.5 or 9°F (2 or 5°C)

Description Part No.

Free Energy Band™ Four-pipe Fan
Coil Controller RCC30U

RCC... FEB

Setpoint (Energy Saving mode), Heating ............................ 61°F (16°C)

Setpoint (Energy Saving mode), Cooling ............................ 82°F (28°C)

Setpoint (Freeze Protection) .................................................. 46°F (8°C)

Operation

Temperature ...................................................... 32 to 122°F (0 to 50°C)

Humidity .................................................................................. <95% RH

Shipping and Storage

Temperature ..............................................-13 to +158°F (-25 to +70°C)

Humidity .................................................................................. <95% RH

Agency Approvals

UL Listing ....................................................................................UL 873

cUL
Certifi cation C22.2 No. 24-93
Conforms to CE requirements

Connection Terminals ................. Solid wires or prepared standard wires

2 X16 AWG or 1 X14 AWG
Minimum 20 AWG

Housing Color

Cover ............................................................................. White and gray

Base ...............................................................................................Gray

Degree of Housing Protection .................................................... NEMA 1

Shipping Weight ............................................................... 0.5 lb (0.23 kg)

Accessories
& Service Kits

A-77

Thermostats

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Dimensions

RCC30U FEB Controller

4.49

(114.15)

TH0612R1

1.38
(35)

1.18

(30)

1.10
(28)

1.10
(28)

3.80

(96.6)

Baseplate

0.16 (4)

1.10
(28)

1.88
(48)

A-45

Thermostats

1.10
(28)

0.16
(4)

4.09
(104)

0.46

(11.8)

TH0613R1

0.16 (4)

1.02
(26)

Dimensions shown in inches (mm).

3.54
(90)

1.18
(30)

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A-46

Thermostats

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Room Temperature Controllers
for CAV Systems

RCU15/50…

RCU15U/RCU50U

Room Temperature Controller.

Description

The RCU15/50… Series microprocessor controlled CAV
room controllers are designed for air only, or air and water
heating and/or cooling systems. Controllers have
two-position, pulse width modulation (PWM), or
proportional response.

Features

• 0 to 10 Vdc output for heating or cooling (RCU50U and
RCU50.2U)

• ON/OFF or PWM outputs for heating and cooling
(RCU15U)

• Control depending on room or return air temperature
(RCU15U)

• Automatic heating/cooling changeover (RCU15U and
RCU50U)

• Manual heating/cooling changeover (RCU50.2U)

• Operating modes: Normal, Energy Saving, Freeze
Protection and Standby (RCU15U and RCU50U)

• Operating modes: Normal and OFF (RCU50.2U)

• Active 0 to 10 Vdc input for setpoint shifting (RCU50U)

• Operating mode changeover input for remote control
(RCU50U)

• Adjustable minimum limitation for cooling output
(RCU50U)

• Operating voltage 24 Vac

RCU50.2U Room Temperature Sensor with
manual heating/cooling changeover switch.

Applications

Controlling individual room temperature in HVAC
installations that are heated or cooled.

Controlling these types of equipment:

• Valve actuators

• Air damper actuators

A-47

Thermostats

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Specifi cations/Product Ordering

A-48

Power Supply

Operating Voltage ............................................................. 24 Vac ±20%

Frequency ................................................................................ 50/60 Hz

Setpoint Setting Range ...................................... 50 to 85°F (10 to 30°C)

P-band in Heating Mode

RCU50U .................................................................... 2 or 7°F (1 or 4°C)

RCU50.2U (fi xed) .................................................................... 7°F (4°C)

P-band in Cooling Mode

RCU50 ................................................................ 1 or 3.5°F (0.5 or 2°C)

RCU50.2 (fi xed) ................................................................... 3.5°F (2°C)

Setpoint (Energy Saving Mode), Heating ........................... 61°F (16°C)

Setpoint (Energy Saving Mode), Cooling ........................... 82°F (28°C)

Setpoint Freeze Protection ..................................................... 46°F (8°C)

Setpoint Shift Temperature @ 72°F (22°C) ............... +22.5°F (±12.5°C)

Control Action

RCU15U ............................................................................. On/Off/PWM

RCU50U & RCU50.2U ........................................................ Proportional

Control Outputs, Terminals 4 and 5 (RCU 50...)

Voltage ................................................................................. 0 to 10 Vdc

Current ......................................................................................... ±1 mA

Control Outputs, Terminals 7 and 8 (RCU15U) ........... PWM or ON/OFF

Voltage .............................................................................. 24 Vac ±20%

Current ................................................................................... 0.02 to 1A

Cycle time PWM (selectable for terminal 7) ...........................20s or 90s

Status Input D1 (RCU50U)

Contact sensing ................................................... 6 to 15 Vdc/3 to 6 mA

Insulation against live voltage ......................................................... 4 kV

Maximum number of contacts connected in a panel .......................... 50

Status Inputs 1 and 2 (RCU50U)

Setpoint shift of +22.5°F @ 72°F (22°C) .............................. 0 to 10 Vdc

Neutral position (no setpoint shift) ................................................. 5 Vdc

Signal Input Terminals 2 and 3

for Changeover Sensor ....................................... QAH11.1 safety class 2

NTC resistor 3KΩ @ 77°F (25°C)

Maximum Copper Cable Length 16 AWG

For Input Signal terminals 1 & 2 (RCU50U) .................... 262 feet (80m)

For Input Signal D1 (RCU50U) ....................................... 262 feet (80m)

Operation

Temperature ...................................................... 32 to 122°F (0 to 50°C)

Humidity .................................................................................. <95% RH

Shipping and Storage

Temperature ..................................................-13 to 158°F (-25 to 70°C)

Humidity .................................................................................. <95% RH

Agency Approvals .......................................................... UL listed UL 873

Conforms to CE requirements
cUL certifi ed to Canadian Standard C22.2 No. 24-93

Connection Terminals ....... Use Solid Wires or Prepared Stranded Wires

2 x 16 AWG or 1 x 14 AWG, 20 AWG max.

Housing Color

Cover ............................................................................................. White

Base ...............................................................................................Gray

Shipping Weight ............................................................... 0.5 lb (0.23 kg)

Heat/Cool Changeover Output(s) Part No.

Automatic (2) On/Off or PWM RCU15U

Automatic (1) 0 to 10 Vdc RCU50U

RCU15/50…

Manual (1) 0 to 10 Vdc RCU50.2U

Thermostats

Ordering Note: The temperature sensor, changeover mounting

kit, and valve and damper actuators must be ordered separately,
see table below.

Device Combinations

Description Part No.

Remote Cable

Temperature/Changeover Sensor QAH11.1

44 lb-in NSR Air Damper Actuator GDE16...

88 lb-in NSR Air Damper Actuator GLB16...

Valve Actuator SSB61U

Valve Actuator SSC61U

SSC61.5U

Valve Actuator SQS65U
SQS65.5U

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Engineering Drawings

Function Diagrams

Y1[%]

100

0

XpH

TH0904R1

SDH SDC

RCU15U – Heating-Cooling

Key
T Room temperature
Y1, Y2 Output percentage
W Room temperature setpoint
Xdz Dead band
XpH Proportional band heating

2 P

W

Xdz

XpK

XpK Proportional band cooling
SDH Switching differential for heating
SDC Switching differential for cooling
2 P. 2-position outputs

Y2 [%]

100

T [∞F]

A-49

Thermostats

RCU50U – Heating-Cooling with Minimum Limitation Cooling

Key
T Room temperature
Y10 Output percentage
W Room temperature setpoint
XpH Proportional band heating

XpK Proportional band cooling
VR 0 to 100% minimum limitation of

cooling output

c/o Changeover

RCU50.2U – Heating-Cooling

Key
T Room temperature
Y10 Output percentage
W Room temperature setpoint

XpH Proportional band heating
XpK Proportional band cooling
c/o Changeover

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A-50

Dimensions

RCU15/50… Controller

Thermostats

RCU15/50… Baseplate

Dimensions shown in inches.

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Room Temperature Controllers
for CAV and VAV Systems

RCU61U

RCU61U Room Temperature Controller.

Description

The RCU61U Room Temperature Controllers are designed
specifi cally for Constant Air Volume and Variable Air
Volume Systems.

Features

• Modulating P-control

• 0 to 10 Vdc output for cooling

• Three-position output 24 Vac for heating

• Operating modes: normal, energy saving and standby

• Active 0 to 10 Vdc input for remote setpoint shifting

• Operating mode changeover input for remote control

• Adjustable minimum limitation for cooling output

• Operating voltage 24 Vac

• Ergonomic design

• Dual Fahrenheit/Celsius scale

Applications

Controlling individual room temperature in HVAC
installations that are heated or cooled, the RCU61U
Temperature Controllers are suited for use with VAV
systems with auxiliary heating with VAV compact
controllers, valve actuators, and air damper actuators.

Function Diagram

A-51

Thermostats

Key
T Room Temperature
Y2, Y10 Output Percentage
W Room Temperature Setpoint
XpH Proportional Band Heating

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XpK Proportional Band Cooling
VR 0 to 100% Minimum Limitation

of Cooling Output

Specifi cations/Product Ordering

A-52

Power Supply

Operating Voltage ............................................................. 24 Vac +10%

Frequency ................................................................................ 50/60 Hz

Setpoint Setting Range ........................................ 46 to 86°F (8 to 30°C)

Maximum Control Deviation at 68°F (20°C) ................................. +0.7 K

Switching Differential Heating SDH

or P-band XpH (Selectable) .......................................2 or 7°F (1 or 4°C)

Switching Differential Cooling SDC

or P-band XpC (Selectable) .................................1 or 3.5°F (0.5 or 2°C)

Setpoint Shift Temperature @ 72°F (22°C) ...................... +22.5°F (+°C)

Control Outputs (Cooling) 4 & 5 ........................................... 0 to 10 Vdc

Voltage .........................................................................................24 Vac

Current ......................................................................................... +1 mA

Control Outputs (Heating) 8, 9 &10 .................................... 24 Vac ±20%

Motor Timing for Heat Output .....................................150 sec. @ 60 Hz

Status Input D1

Contact Sensing .................................................. 6 to 15 Vdc /3 to 6 mA

Insulation Against Live Voltage ....................................................... 4 kV

Maximum Number of Contacts per Panel .......................................... 50

Description Part No.

Room Temperature Controller RCU61U

RCU61U

Status Input B1

Setpoint Shift of 36°F (12.5 C) ............................................. 0 to 10 Vdc

Neutral Position (No Setpoint Shift) .............................................. 5 Vdc

Signal Input B2 for Changeover Sensor ..........QAH11.1 Safety Class 2

Maximum Copper Cable Length 16 AWG

For Input Signal B1/B2 (RCU61U) ....................................262 ft. (80 m)

For Input Signal D1 (RCU61U) ......................................... 262 ft. (80 m)

Operation

Temperature ...................................................... 32 to 122°F (0 to 50°C)

Humidity .................................................................................. <95% RH

Agency Listings ............ UL Listed 197N; Conforms to CE Requirements

Connection Terminals ...... Use Solid Wires or Prepared Stranded Wires

2x13 AWG or 1x16 AWG

Housing Color

Cover ............................................................................................. White

Base ...............................................................................................Gray

Shipping Weight ............................................................. 0.5 lb. (0.02 kg)

Accessories
& Service Kits

A-77

Thermostats

Device Combinations

Description Type Reference

Valve Actuator SSA81
SSB61U
SSB81
SSC81

Damper Actuator GLB16x
GCA16x
GBB16x
GDE16x

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Dimensions

RCU61U Controller

A-53

Baseplate

Thermostats

Dimensions shown in inches.

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A-54

Thermostats

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RLA162.5U

Room Temperature Controller
with Two 0 to 10 Vdc Outputs

Description

Room temperature controller for basic ventilation,
air conditioning and heating systems. Compact design
with two analog, 0 to 10 Vdc control outputs for heating
and/or cooling, and digital input for pump or fan.

Features

• Automatic heat/cool changeover.

• Automatic day/night setpoint changeover via

external contact.

• Room temperature control through modulating control

of valve or damper actuators with selectable operating
action of control signals for heating only, cooling only,
or heating and cooling in sequence.

• Relay input for fan pump or other controls.

• Minimum limitation of the supply air temperature.

• Outputs are independently selectable direct acting (DA)

or reverse acting (RA).

• Adjustable proportional band.

New!

RLA162.5U Room Temperature Controller

Applications

• Single-stage heating

• Single-stage cooling

• Two-stage heating

• Heating and cooling in sequence

• Minimum limitation of supply air

Devices that can be controlled:

• Modulating heating or cooling valve actuators

• Modulating air damper actuators

• Circulating pumps, charging pumps, and boilers

A-55

Thermostats

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Specifi cations/Product Ordering

A-56

Power Supply

Operating Voltage .......................................................24 Vac ±20/-25%

Frequency ................................................................................ 50/60 Hz

Power Consumption ........................................................Maximum 2 VA

Setpoint Temperature Differential

Adjustment Range ................................................. 46 to 86°F (8 to 30°C)

Night Setpoint Differential From

Day Setpoint, Adjustable ......................................... 0 to 18°F (0 to 10 K)

Proportional-band ....................................................2 to 90°F (1 to 50 K)

Integral Action Time with PI Control ............. 600 Seconds (10 minutes)

Dead Zone with Heating/Cooling in Sequence ..................... 1.8°F (1 K)

Relay Input (Fan) 13, 20 .................................................................24 Vac

Control Outputs 18, 19, Modulating, P or P + I Control Algorithm

Voltage ...................................................... 0 Vdc to 10 Vdc, Continuous

Current ...........................................................................Maximum 1 mA

Maximum Cable Length Copper (16 AWG)

For Signal Input 5, 11 ..................................................... 262 feet (80 m)

Contact Input (D1-GND) ............................................................ 3 to 6 mA

Description Part No.

Room Temperature Control with
Minimum Limitation and Automatic
Day/Night Changeover RLA162.5U

RLA162.5U

Ordering Note: The temperature sensor, kit, and valve and

damper actuators must be ordered separately, see table below.

Operation

Temperature ...................................................... 32 to 122°F (0 to 50°C)

Humidity .................................................................................. <95% RH

Transport

Temperature ..................................................-13 to 158°F (-25 to 70°C)

Humidity .................................................................................. <95% RH

Regulatory Approvals

Degree of protection .................................................................. NEMA 1

UL listing ...................................................................................... UL 916

cUL ................................... Canadian Standard C22.2 No. 205-M1983

Connection Terminals for solid wires

or stranded wires .......................................... 2 x 16 AWG or 1 x 14 AWG

Sensor

Sensing Element ............................... Siemens-Ni 1000 Ω at 32°F (0°C)

Shipping Weight ............................................................. 1.40 lb (0.64 kg)

Wiring Diagrams

Thermostats

Device Combinations

Actuators and controls must meet the following specifi cations:

• Operating voltage 24 Vac

• Control input: modulating 0 to 10 Vdc

Description Type Reference

OpenAirTM GDE Series Damper Actuator GDE161.1T
with 44 lb/in torque GDE161.1P

TM

OpenAir
with 88 lb/in torque GLB161.1P

OpenAir
62 lb/in torque GMA161.1U

Accessory wall escutcheon ARG70

Air duct temperature controller
(as a minimum limiter) RLM162U

Cable changeover sensor QAP22

GLB Series Damper Actuator

TM

GMA Damper Actuator GMA161.1P

RLA162.5U

Key
B2 Heat/cool changeover sensor
E1 Fan or auxiliary unit
F2 Low temperature detection thermostat
N1 Room temperature controller (RLA162.5U)
S1 Time clock or switch for day/night setpoint changeover
Y1 Heating valve actuator
Z9 Limit controller (RLM162U) as a limiter

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Engineering Drawings

Function Diagrams

RLA162.5U Room Temperature Controller

A-57

RLA162.5U and RLM162U Room Temperature Controllers

Key
N1 Room Temperature Controller (RLA162.5U)
N2 Air Duct Temperature Controller (RLM162U) — controls minimum or maximum limitation of discharge air
Y1 Heating valve
Y2 Cooling valve

Thermostats

www.usa.siemens.com/hvaccomponents

A-58

Dimensions

RLA162.5U Controller

Thermostats

RLA162.5U Baseplate

Dimensions shown in inches (mm).

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Room Temperature Controllers
with LCD for Heating
and Cooling Systems

RDU...

Description

The RDU Series Room Controller with LCD is designed for
2-pipe heating and cooling systems.

Features

• Liquid crystal display

• Modulating Proportional + Integral (P+I) control

• Control depending on room or remote air temperature

• Output for a 0 to 10 Vdc actuator (RDU50U and

RDU50.2U)

• Output for a fl oating (3-position) or on/off output

actuator (RDU20U)

• Adjustable actuator run time (RDU20U)

• Automatic heating/cooling changeover (RDU20U

and RDU50U)

• Manual heating/cooling changeover (RDU50.2U)

• Operating modes: Normal, Energy Saving and Off

(RDU20U and RDU50U)

• Operating mode changeover input for day/night

remote control

• Selectable installation and control parameters

• Adjustable minimum limitation for cooling output

(RDU50U)

• Optional selectable Direct Acting or Reverse Acting

output (RDU50U and RDU50.2U)

• Selectable display of room temperature or setpoint

• Fahrenheit or Celsius selectable display

• Minimum and maximum setpoint limitation

• Operating voltage, 24 Vac

RDU20U/RDU50U Room

Temperature Controller.

RDU50.2U Room

Temperature Controller.

Applications

The RDU…Series of Room Temperature Controllers are
used for individual room temperature control in heating or
cooling HVAC applications.

A-59

Thermostats

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Specifi cations/Product Ordering

A-60

Operating Voltage ................................................................ 24 Vac +20%

Frequency ................................................................................... 50/60 Hz

Power Consumption ..........................................................Maximum 4 VA

Control Output 1–5 (RDU50U and RDU50.2U) ..................... 0 to 10 Vdc

Resolution .................................................................................... 39 mV

Effective Current ...........................................................Maximum +1 mA

3-position Control Output 4–6 (RDU20U) .....................................24 Vac

Return air temperature input 4–3 ......................QAH11.1 Safety Class 2

Changeover temperature input
2–3 (RDU50U)

8–7 (RDU20U) ...................................NTC resistor 3K ohm at 77°F (25°C)

Dry Contact D1 and GND

Contact Sensing ................................................... 6 to 15 Vdc/3 to 6 mA

Operating Action .....................................................Normally Open (NO)

Maximum Cable Length 16 AWG for Connection

to Terminals 4, 2 and D1 .................................................. 262 feet (80 m)

Setpoint Setting Range ......................................... 41 to 95°F (5 to 35°C)

Control Deviation at 77°F (25°C) ......................Maximum ±1.6°F (0.9°C)

Description Part No.

Automatic heating/cooling changeover,
3 Position RDU20U

Automatic heating/cooling changeover,

RDU...

0-10Vdc RDU50U

Manual heating/cooling changeover
switch, 0-10Vdc RDU50.2U

P-band in Heating Mode, Adjustable

in 0.5K Increments (1 Kelvin = 2°F) .........................................0.5K to 4K

Factory Setting ................................................................................... 2K

P-band in Cooling Mode, Adjustable

in 0.5K Increments (1 Kelvin = 2°F) .........................................0.5K to 4K

Factory Setting ................................................................................... 1K

Integral Action Time, Adjustable .....................................1 to 10 Minutes

Factory Setting ........................................................................ 5 Minutes

Setpoint (Energy Saving Mode), Heating ............. 41 to 65°F (5 to 18°C)

Setpoint (Energy Saving Mode), Cooling ........... 75 to 95°F (24 to 35°C)

Operation

Temperature ...................................................... 32 to 122°F (0 to 50°C)

Humidity .................................................................................. <95% RH

Shipping and Storage

Temperature

(RDU50U and RDU50.2U) .......................-13 to 158°F (-25 to 70°C)

(RDU20U) ................................................. -13 to 140°F (-25 to 60°C)

Humidity .................................................................................. <95% RH

Agency Approvals ................................... Conforms to CE Requirements

NEMA 1

Connection Terminals ...... Use Solid Wires or Prepared Stranded Wires.

2 x 16 AWG or 1 x 14 AWG

Maximum 20 AWG

Housing Color

Cover ............................................................................................. White

Base ...............................................................................................Gray

Shipping Weight ............................................................... 0.5 lb (0.23 kg)

Device Combinations

Thermostats

Description Type Reference

0 to 10 Vdc Valve Actuators SSB61U…

SSC61U…

SQS65U

SSC61.5U

SQS65.5U

44 lb-in NSR Air Damper Actuators GDE16…

RDU50U and RDU50.2URDU20UAll Models

88 lb-in NSR Air Damper Actuators GLB16…

Floating Control Valve Actuators SSB81U…

SSC61U

SSC81U

SQS65.5U

44 lb-in NSR Air Damper Actuators GDE131…

88 lb-in NSR Air Damper Actuators GLB131…

Two-way Globe Zone Valves Powermite MZ Series

Three-way Globe Zone Valves Powermite MZ Series

Two-way Globe Zone Valves Powermite MT Series

Three-way Globe Zone Valves Powermite MT Series

Two-way Ball Valves Powermite 599 Series

Accessories
& Service Kits

A-77

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Dimensions

RDU...Controller

4.61

(117)

TH0769R1

4.21

(107)

1.77
(45)

3.78
(96)

Baseplate

1.10
(28)

1.10
(28)

0.16

(4)

0.46

(11,8)

1.10
(28)

1.10
(28)

1.38
(35)

A-61

Thermostats

TH0772R1

0.16 (4)

1.18
(30)

Dimensions shown in inches (mm).

0.98
(25)

3.54
(90)

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0.28
(7)

A-62

Thermostats

TECH TIPS

Visit us on the web at:

www.usa.siemens.com/hvaccomponents,
for printable product specification sheets on all
products in this catalog.

www.usa.siemens.com/hvaccomponents

Room Temperature Controller
with LCD

RDX...

RDX42.22U Room Temperature

Controller with LCD.

Description

The RDX... Room Temperature Controller with LCD is a
controller for heat pump systems with reversing valve, or
standard heating and cooling with optional electric heater,
one- or two-stage heating and one-stage cooling.

Features

• Outputs for one-stage compressor and reversing valve
or on/off valve actuators

• Output for auxiliary electric heating

• Output for a one-speed fan

• Room or return air temperature control

• Manual heating/cooling changeover

• Operating modes: Normal (heating, cooling), Energy
Saving, Off

• Operating mode changeover input for remote control

• Selectable installation and control parameters

• Operating voltage 24 Vac

Applications

The RDX... Series of Room Temperature Controllers are
used for control of the following:

• Heat pump systems with reversing valve, optional
electric heater, one- or two-stage heating and
one-stage cooling.

• Four pipe standard heating and cooling systems.

• Room temperature in individual rooms that are heated
or cooled with four-pipe fan coil units and optional
electric heating.

• Opening and closing a valve.

• Switching a one-speed fan.

A-63

Thermostats

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Specifi cations/Product Ordering

A-64

Operating Voltage ................................................................ 24 Vac ±20%

Frequency ................................................................................... 50/60 Hz

Power Consumption ..........................................................Maximum 6 VA

Control Output FAN ........................................................................24 Vac

Rating ............................................................................ Maximum 5(3)A

Control Outputs Cooling and Heating ..........................................24 Vac

Rating ............................................................................ Maximum 5(3)A

Control Output Aux. Heating .........................................................24 Vac

Rating ............................................................................ Maximum 5(3)A

Remote Temperature Sensor

Status Input 8-7 ...................................................QAH11.1 Safety Class II

NTC resistor 3 k ohm at 77°F (25°C)

Status input D1 and GND

Operating Action Selectable ..................................... Normal Open (NO)

Contact Sensing ..................................................... Normal Closed (NC)

Insulation Against Line Voltage ..........SELV 6 to 15 Vdc/3 to 6 mA, 4kV

Reinforced Insulation

Permissible Cable Length with Copper Cable
2 X16 AWG or 1 X14 AWG for Connection to

Terminals 8 and D1 .............................................................. 262 ft. (80 m)

Description Part No.

Room Temperature Controller RDX42.22U

RDX...

Setpoint Setting Range ......................................... 46 to 95°F (8 to 35°C)

Control Deviation at 77°F (25°C) ........................ Maximum + 1°F (0.5 K)

Setting Range ................................................................ Factory Setting

Switching Differential in Heating Mode (adj) .....1 to 7°F 3.5°F (2 K)

Switching Differential in Cooling Mode (adj) ..... 1 to 7°F 2°F (1 K)

Setpoint Differential WD (Adjustable) .................1 to 9°F 3.5°F (2 K)

Setpoint (Energy Saving Mode), Heating ....... 46 to 64°F 61°F (16°C)

Setpoint (Energy Saving Mode), Cooling .......75 to 95°F 82.5°F (28°C)

Operation

Temperature ...................................................... 32 to 122°F (0 to 50°C)

Humidity .................................................................................. <95% RH

Shipping and Storage

Temperature ..............................................-13 to +158°F (-25 to +70°C)

Humidity .................................................................................. <95% RH

Agency Approvals ................................... Conforms to CE Requirements

NEMA 1

Connection Terminals .................................................Use Solid Wires or

Prepared Stranded Wires. 22 AWG to 14 AWG

Housing Cover Color ....................................................................... White

Shipping Weight ............................................................ 0.5 lb. (0.225 kg)

SP

QAH11.1

Thermostats

B1

498 D1GND

24 Vac

112 5 2 10

5(3)A

SN

TH0873R2

Key
6 Cooling output NC contact
5 Cooling output NO contact
11 Heating output NC contact
9 Heating output NO contact

max.

RDX… Four-pipe System Wiring

611

5(3)A
max.

5(3)A
max.

37

5(3)A
max.

Wiring Diagrams

SP

24 Vac

SN

TH0874R1

QAH11.1

B1

498 D1GND

112 5 2 10

61137

5(3)A
max.

5(3)A
max.

5(3)A
max.

RDX… Heat Pump Wiring

Key
6 Cooling output NC contact for reversing valve
5 Cooling output NO contact for compressor
11 Heating output NC contact for reversing valve
9 Heating output NO contact for compressor

Note: Outputs 5 and 10 must be wired together for compressor control

5(3)A
max.

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Dimensions

RDX... Controller

4.33 (117)

4.21

(107)

TH0870R1

1.77
(45)

3.78 (96)

1.10
(28)

Baseplate

1.10
(28)

(4)

0.16

1.38
(35)

A-65

Thermostats

0.46

(11,8)

1.10
(28)

1.10
(28)

TH0772R1

0.16 (4)

1.18
(30)

Dimensions shown in inches (mm).

0.98
(25)

3.54
(90)

www.usa.siemens.com/hvaccomponents

0.28
(7)

A-66

Thermostats

TECH TIPS

Visit us on the web at:

www.usa.siemens.com/hvaccomponents

You can:

• search for products by part number
or description.

• print out product information for submittals.

• link to technical documentation.

• locate a distributor near you.

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RDF

Room Temperature Controllers
with LCD for Two-Pipe Fan Coil Units

Description

Room temperature controller with LCD for two-pipe fan
coil units.

Features

RDF10U

• Output for an on/off valve actuator

RDF20U

• Output for an on/off valve actuator and an electric heater

RDF50.1U

• Modulating PI control

• Output for a 0 to 10 Vdc valve actuator

RDF60.1U

• Modulating PI control

• Output for a three-position valve actuator

ALL MODELS

• Outputs for a three-speed fan

• Control depending on the room or the return
air temperature

• Automatic heating/cooling changeover

• Continuous heating or cooling mode

• Operating modes: Normal, Economy and Standby

• Operating mode changeover input for remote control
(Day/Night)

• Air movement control function for avoiding damage
resulting from moisture

• Selectable installation and control parameters

• Display of room temperature or setpoint (selectable)

• Electronic minimum and maximum setpoint limits

• Operating voltage 24 Vac

Applications

Typical use for RDF10U:

• Control of the room temperature in individual rooms that

• Opening or closing a valve and switching a three-

Typical use for RDF20U:

• Control of the room temperature in individual rooms

• Opening or closing a valve, switching a three-speed fan,

Typical use for RDF50.1U:

• Control of the room temperature in individual rooms that

• For opening and closing a 0 to 10 Vdc valve operating

Typical use for RDF60.1U:

• Control of the room temperature in individual rooms that

• Opening and closing a three-position valve operating on

New!

RDF20U Room Temperature Controller with LCD for

Two-Pipe Fan Coil Units with Electric Heat

are heated or cooled with two-pipe fan coil units.

speed fan.

that are heated or cooled with two-pipe fan coil units
equipped with an electric heater.

and switching an electric heater.

are heated or cooled with two-pipe fan coil units.

on 24 Vac and for switching a three-speed fan.

are heated or cooled with two-pipe fan coil units.

24 Vac and for switching a three-speed fan.

A-67

Thermostats

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Specifi cations/Product Ordering

A-68

Power Supply

Operating Voltage ......................................................24 Vac, +20/-25%

Frequency ................................................................................ 50/60 Hz

Power Consumption ..........................................................6 VA maximum

Fan Control Outputs

RDF10U, RDF20U, RDF60.1U 12, 11, 10-N ....................................24 Vac

Rating .......................................................................... 5 (3) A maximum

Valve Control Output 4-2 (NO) .......................................................24 Vac

Rating .......................................................................... 5 (3) A maximum

Valve Control Output 5-2 (NC) .......................................................24 Vac

Rating .......................................................................... 5 (3) A maximum

RDF20U Electric Heating Control Output 6-2 (NO) ......................24 Vac

Rating .......................................................................... 5 (3) A maximum

RDF60.1U Valve Control Output 4, 6, 2 .........................................24 Vac

Rating .......................................................................... 5 (3) A maximum

RDF50.1U Valve Control Output 1-6 ............................ SELV 0 to 10 Vdc

Resolution .................................................................................... 39 mV

Effective Current ...........................................................±1 mA maximum

Return Air Temperature Sensor ......................... QAH11.1 safety class II

RDF10U, RDF20U, RDF60.1U

Status Input 8-9 ..................................NTC resistor 3 kΩ at 77°F (25°C)

RDF50.1U

Status Input 4-3 ..................................NTC resistor 3 kΩ at 77°F (25°C)

Heat/Cool Changeover ....................................... QAH11.1, safety class II

RDF10U, RDF20U, RDF60.1U

Status Input 7-8 ..................................NTC resistor 3 kΩ at 77°F (25°C)

RDF50.1U

Status Input 2-3 ..................................NTC resistor 3 kΩ at 77°F (25°C)

Status Input D1 and GND

Contact Sensing ......................................... SELV 6 to 15 Vdc/3 to 6 mA

Insulation Against Live Voltage ..................... 4 kV, reinforced insulation

Operating Action ......................................................Selectable (NO/NC)

Permissible Cable Length With Copper .................. 262 ft (80 m) cable

14 AWG for connection to terminals 7, 8, 9 and D1, GND

Setpoint Setting Range .......................................41° to 95°F (5° to 35°C)

Control Deviation at 77°F (25°C) ......................... ±1°F (0.5 K) maximum

Switching Differential In Heating Mode, Adjustable ............. 2 K (3.6°F)

Switching Differential In Cooling Mode, Adjustable ............1 K (1.8°F)

Setpoint, Economy Mode, Heating, Adjustable .................. 61°F (16°C)

Setpoint, Economy Mode, Cooling, Adjustable .................. 82°F (28°C)

Setpoint, Standby, Heating, Adjustable ................................. 46°F (8°C)

Setpoint, Standby, Cooling, Adjustable ........................................... OFF

Operation

Temperature ....................................................32° to 122°F (0° to 50°C)

Humidity .................................................................................. <95% RH

Transport and Storage

Temperature ...............................................-13° to 158°F (-25° to 70°C)

Humidity .................................................................................. <95% RH

UL Listing ....................................................................................... UL 873

Connection Terminals ................. Solid wires or prepared stranded wires

2 x 16 AWG or 1 x 14 AWG

Housing Front Color ..................................................... White (RAL 9003)

Weight ................................................................................0.5 lb (0.23 kg

Description Part No.

Thermostats

Room Temperature Controller with LCD for
Two-Pipe Fan Coil Units RDF10U

Room Temperature Controller with LCD for
Two-Pipe Fan Coil Units with Additional
Electric Heat RDF20U

RDF

Room Temperature Controller with LCD for
Two-Pipe Fan Coil Units with Modulating
0 to 10 Vdc Output RDF50.1U

Room Temperature Controller with LCD for
Two-Pipe Fan Coil Units and Output
for 3-Position Actuator RDF60.1U

Device Combinations

Description For Use With Controllers Type Reference

Temperature Sensor RDF10U, RDF20U, RDF50.1U, RDF60.1U QAH11.1

Two-way and Three-way Zone Valves RDF10U, RDF20U, RDF50.1U, RDF60.1U 599 Series

Zone Valve Actuator RDF10U, RDF20U SF Series

Zone Valve Actuator RDF50.1U, RDF60.1U SSA61 Series

Zone Valve Actuator RDF50.1U, RDF60.1U SSB61U Series

Accessories
& Service Kits

A-91

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Dimensions

RDF... Controller

4.33 (117)

4.21

(107)

TH0870R1

1.77
(45)

3.78 (96)

1.10
(28)

Baseplate

1.10
(28)

(4)

0.16

1.38
(35)

A-69

Thermostats

0.46

(11,8)

1.10
(28)

1.10
(28)

TH0772R1

0.16 (4)

1.18
(30)

Dimensions shown in inches (mm).

0.98
(25)

3.54
(90)

www.usa.siemens.com/hvaccomponents

0.28
(7)

A-70

Thermostats

TECH TIPS

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via our secure Order Tracker feature. To take
advantage of time-saving benefits, go online to
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click on site360, and register today.

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Electric Surface Mounted/High
Temperature Limit Control
Thermostats

141

Description

The 141 Electric Surface Mount Thermostats are single
setpoint electric thermostats for high or low limit control;
surface mounted or duct mounted models available.

Features

Electric Surface Mounted Thermostat

• Can be mounted horizontally, vertically or at an angle.

• Visual setpoint indication through cover

Electric High Temperature
Limit Control Thermostat

• Liquid-fi lled, rigid bulb sensing unit

• Adjustable high temperature limit stop

• Manual reset to close contacts

141-0522 Electric Surface

Mounted Thermostat.

141-0530 Electric High Temperature

Limit Control Thermostat.

Applications

141 Surface Mounted Thermostat

The 141 Surface Mounted Thermostat is ideal as a low or
high limit control on unit heaters. Also can be used as a
convector or fan coil changeover control for automatically
selecting the heating or cooling function based on water
temperature.

141 Electric High Temperature Thermostat

The 141 Electric High Temperature Thermostat is nor­mally located in a duct system and wired to shut down air
conditioning or ventilating fans when the air temperature
exceeds 125°F (52°C), which would occur during a fi re.

This thermostat can also be used as a high limit control for
a warm air system when a “lockout” type control is desired
or required by code.

Typical Connections

A-71

Thermostats

Typical High Limit Wiring.

Typical Changeover Wiring.

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Specifi cations/Product Ordering

A-72

Part No. 141-0522

Setpoint Range ................................................. 50 to 150°F (10 to 65°C)

Maximum Bulb Temperature ............................................240°F (116°C)

Switch Action ..................................................................................SPDT

Electrical Ratings

Motor Rating ............................................................ 7.4 FLA @ 120 Vac

3.7 FLA @ 240 Vac

Locked Rotor ..............................................................44.5 A @ 120 Vac

22.2 A @ 240 Vac

Cover Finish ............................................................. Gray Baked Enamel

Dimensions .................................................. 2.30" W x 5.38" H x 1.84" D

(58 mm W x 173 mm H x 47 mm D)

Shipping Weight ............................................................... 2.0 lb. (0.9 kg)

Description Part No.

Surface Mounted 141-0522

High Temperature Limit Duct Mount 141-0530

141

Part No. 141-0530

Setpoint Range .............................................. 25 to 215°F (-4 to +102°C)

Switch Action ............................................................ SPST, open-on-rise

Factory Temperature Setting ............................................. 125°F (52°C)

Electrical Ratings

Motor Rating ............................................................ 10 FLA @ 120 Vac

6 FLA @ 240 Vac

Noninductive Rating ................................................ 1 A @ 0.3 to 12 Vac

6 A @ 12-50 Vac

Agency Approvals .................................................................UL MP3487

CSA LR6246

Cover Finish ............................................................. Gray Baked Enamel

Dimensions ...................................................... 2.94" W x 5.38 H x 2.5" D

(59 mm W x 136 mm H x 64 mm D)

Shipping Weight ............................................................. 1.8 lb. (0.82 kg)

Accessories
& Service Kits

A-91

Thermostats

Part No. in black box Ships same day when requested through Rapid Response

TM

shipping. See page 1 for details.

Electric Low Temperature
Detection Thermostats

134

134 Electric Low Temperature Detection Thermostat.

Description

The 134 Electric Low Temperature Detection Thermostat
is a remote bulb instrument with a Single Pole, Double
Throw switch. Any one foot of the capillary element
actuates the thermostat switch, making this control ideal
for the protection of large coils where air stratifi cation
could cause localized freezing conditions.

Features

• Compact and durable construction

• Adjustable concealed, low and high range limit stops
with a fi xed differential

• Available with manual or automatic reset

• Electroplated copper capillary tube for sensitivity
and durability

• Switches 120 V or 20 Vac

• Universal mounting bracket included

Applications

The 134 Electric Low Temperature Detection Thermostats
are ideally suited for detecting potential freeze-up
conditions of heating coils, cooling coils, liquid heating
pipes, and similar applications.

Typical Connections

A-73

Thermostats

Red to Yellow
opens on temp.
decrease below
set point.

Red to Blue
closes on temp.
decrease below
set point.

OPEN ON RISE CLOSE ON RISE

Red to Blue
closes on temp.
decrease below
set point.

Red to Yellow
opens on temp.
decrease below
set point.

www.usa.siemens.com/hvaccomponents

Specifi cations/Product Ordering

A-74

Part No. 134-1504

Dimensions ......................................................... 4" W x 3.25" H x 2.5" D

(102 mm W x 83 mm H x 65 mm D)

Shipping Weight ............................................................... 2.4 lb. (1.1 kg)

Part No. 134-1510

Dimensions .................................................. 2.31" W x 3.19" H x 2.31" D

(59 mm W x 81 mm H x 59 mm D)

Shipping Weight ............................................................... 1.8 lb. (0.8 kg)

Switch Reset
Temperature Range Action Bulb Size Action Part No.

35 to 45°F (1.7 to 7.2°C) SPDT 1/8" x 20' (3 mm x 6 m) Automatic

35 to 45°F (1.7 to 7.2°C) SPDT 1/8" x 20' (3 mm x 6 m) Manual 134-1511

134

15 to 55°F (-9.4 to +12.8°C) DPST, 4-wire 1/8" x 20' (3 mm x 6 m) Manual 134-1504
2 Circuit

Part No. 134-1511

Dimensions .................................................. 2.31" W x 3.19" H x 2.31" D

(59 mm W x 81 mm H x 59 mm D)

Shipping Weight ............................................................... 1.8 lb. (0.8 kg)

134-1510

Accessories
& Service Kits

A-91

Thermostats

Part No. in black box Ships same day when requested through Rapid Response

TM

shipping. See page 1 for details.