Johnson T500 Series User Manual

Page 1

T500 Series Non-Programmable Thermostats

T500 Series Thermostats provide an economical control solution for single-stage, multi-stage, or heat pump systems. Two temperature settings can be selected, as well as heat, cool, automatic changeover, and off modes.

Thermostats are available in the following types: T500HCN-1 (1 heat/1 cool), T500HPN-1 (heat pump, 3 heat, 2 cool), T500MSN-1 (2 heat/2 cool). Each thermostat is packaged with the necessary mounting hardware, and installation is simple and fast for reduced cost.

FANs 216, 1628.3

Product/Technical Bulletin T500

Issue Date 0899

Low-Profile Design

!!!!

No Batteries Required

!!!!

Lockable Access Cover and

!!!!

Keypad Lockout

Full Function Liquid Crystal

!!!!

Display (LCD)

Fuzzy Logic Control

!!!!

Figure 1: T500 Series Non-Programmable

Thermostats

Features and Benefits

Compliments any decor

Retains programmed setpoints upon loss of power

Prevents unauthorized changes

Makes controls easy to read, easy to use

Optimizes control performance

Part No. 24-8341-19, Rev. C www.johnsoncontrols.com Code No. LIT-216178

Page 2

ntroduction

ocation Considerations

The T500 thermostats use an adaptive control routine, based on fuzzy logic, to determine the heating or cooling load of the controlled space. The routine calculates load by evaluating recent room conditions, and room reactions to heating and cooling. This load is used to determine the cycle rate of the equipment, giving optimal control of the space.

114. 3 (4-1/2)

101.6 (4)

22.2 (7/8)

Locate T500 thermostats as follows:

•

on a partitioning interior wall, and approximately

1.5 m (5 ft) above the floor in a location of average temperature

•

away from direct sunlight or radiant heat, outside

walls or behind doors, air discharge grills, stairwells, or outside doors

•

away from steam or water pipes, warm air

stacks, unheated/uncooled areas, or sources of electrical interference

CAUTION:

nstallation and Wiring

Note: When replacing an existing thermostat,

remove and use wire tags to identify terminal designations.

To install and wire the thermostat:

Shock Hazard.

Disconnect power supply before wiring connections are made to prevent electrical shock or possible damage to the equipment.

1. Lift the thermostat cover and insert a small coin

Dmnsn

Figure 2: T500 Dimensions, mm (in.)

upplies Needed

•

drill

•

4.7 mm (3/16 in.) drill bit

•

3 mm (1/8 in.) flat-blade screwdriver

•

hammer

•

marking pencil

•

wire stripper

T500 Series Non-Programmable Thermostats Product/Technical Bulletin

into the slot located in the bottom center of the thermostat case and twist 1/4 turn. Grasp the base from the bottom two corners and separate from the thermostat. (See Figure 3.)

2. Swing the thermostat out from the bottom, and lift up and out of the base. Place the rectangular opening in the base over the equipment control wires protruding from the wall and, using the base as a template, mark the location of the two mounting holes. No leveling is required.

3. Use the supplied anchors and screws for mounting on drywall or plaster. Drill two 4.7 mm (3/16 in.) holes at the marked locations, and tap nylon anchors flush to wall surface and fasten. (See Figure 4.)

4. Connect the wires from the existing system to the thermostat terminals according to the wiring designations in Table 4, Table 5, or Table 6. Push extra wire back into the wall. Wires must be flush to the plastic base. Plug hole with a fireproof material to prevent drafts from affecting the ambient temperature readings.

Page 3

CAUTION:

Equipment Damage Hazard.

Before applying power, make all wiring connections and check the connections. Short-circuited or improperly connected wires may result in permanent damage to the unit.

Mount

Figure 4: Mounting the Base

Figure 3: Separating the T500 from the Base

T500 Series Non-Programmable Thermostats Product/Technical Bulletin

Page 4

nstalling the Thermostat Cover Lock

If desired, insert the plastic lock piece into the bottom of the mounted base. The ends of the lock piece should fit snugly under the lock pins extending from the bottom of the mounted base. The tab in the middle of the lock piece should extend downward from the mounted base. (See Figure 5.)

To release the lock, press the lock piece up and into the base while gently prying open the thermostat’s cover at the same time. Use caution to avoid cracking the thermostat base or cover.

eattaching the Thermostat and Cover

to the Installed Base

1. Position the thermostat inside the cover and attach on the hinged tabs located at the top of the base.

2. Swing the thermostat and cover down, and press on the bottom center edge until they snap in place. (See Figure 6.)

Hinged Ta b s

Plastic Lock Pin

Snap

plastic lock

into place.

Figure 5: Installing the Thermostat Lock

Thermostat Base

Figure 6: Installing the T500 Thermostat

T500 Series Non-Programmable Thermostats Product/Technical Bulletin

Page 5

IP Switch Selections

CAUTION:

Equipment Damage Hazard.

Before selecting a minimum on/off time, ensure the equipment can tolerate the following maximum hourly cycle rates: 7.5 cycles per hour when using 4-minute on/off, or 15 cycles per hour when using 2-minute on/off.

Table 1: T500HCN-1 DIP Switch Selections

DIP Switch Switch

Selection

On Allows 2-minute minimum on/off time for heating or cooling equipment.

Off Allows 4-minute minimum on/off time for heating or cooling equipment.

On Locks the keyboard, disabling buttons to prevent tampering.

Off Unlocks the keyboard.

On In heating mode, allows the fan to delay with the plenum switch with a call

Off In heating or cooling mode, allows the fan to operate immediately with a

Description

(Only the

Thermostat, Changing Settings While the Keyboard is Locked Temporary Override While the Keyboard is Locked

for heat. However, in cooling mode, allows the fan to operate immediately with a call for cooling.

call for heat or cooling.

Outdoor

and ∨∨∨∨ and ∧∧∧∧ buttons will function. See

in this bulletin.)

Setting the

and

T500 Series Non-Programmable Thermostats Product/Technical Bulletin

Page 6

Table 2: T500HPN-1 DIP Switch Selections

DIP Switch Switch

Selection

Description

On Compressor/Auxiliary Interlocked: Turns off the compressor when the auxiliary

heat is on. The compressor will remain off for two minutes after the auxiliary heat is turned off to ensure that the heat pump coil has cooled.

Off Compressor/Auxiliary Normal: Allows the compressor and auxiliary heat to be

on simultaneously.

Not used Not used. Switch should remain in the off position.

On Allows 2-minute minimum on/off time for heating or cooling equipment.

Off Allows 4-minute minimum on/off time for heating or cooling equipment.

On Locks the keyboard, disabling buttons to prevent tampering.

(Only the

Thermostat, Changing Settings While the Keyboard is Locked, Override While the Keyboard is Locked

Off Unlocks the keyboard.

On Minimizes the use of auxiliary heat by disabling the auxiliary heat when the

room temperature is within 0.5° of the setpoint and not allowing a forced “On” of the equipment.

Off Allows a forced “On” of the equipment by allowing the user to raise the setpoint

over 2° above the room temperature.

On Allows multi-stage heating or cooling.

Off Allows single-stage heating or cooling.

LED 1 icon off/on (See Table 7.)

LED 2 icon off/on (See Table 7.)

Optional selection: LCD icon comes on with LED 1.

Optional selection: LCD icon comes on with LED 2.

Outdoor

and ∨∨∨∨ and ∧∧∧∧ buttons will function. See

in this bulletin.)

Setting the

and

Temporary

T500 Series Non-Programmable Thermostats Product/Technical Bulletin

Page 7

Table 3: T500MSN-1 DIP Switch Selections

DIP Switch Switch

Selection

Description

On Allows 2-minute minimum on/off time for heating or cooling equipment.

Off Allows 4-minute minimum on/off time for heating or cooling equipment.

On Locks the keyboard, disabling buttons to prevent tampering.

(Only the

Thermostat, Changing Settings While the Keyboard is Locked, Temporary Override While the Keyboard is Locked

Off Unlocks the keyboard.

On In heating mode, allows the fan to delay with the plenum switch with a call for

heat. However, in cooling mode, allows the fan to operate immediately with a call for cooling.

Off In heating mode or cooling mode, allows the fan to operate immediately with

a call for heat or cooling.

On Allows multi-stage heating or cooling.

Off Allows single-stage heating or cooling.

LED 1 icon off/on (See Table 7.)

LED 2 icon off/on (See Table 7.)

Optional selection: LCD icon comes on with LED 1.

Optional selection: LCD icon comes on with LED 2.

Outdoor

and ∨∨∨∨ and ∧∧∧∧ buttons will function. See

Setting the

and

in this bulletin.)

T500 Series Non-Programmable Thermostats Product/Technical Bulletin

Page 8

Heat/Cool: 4 Minute

Minimum On/Off

Fan Immediate

with Call for Heat

Heat/Cool: 2 Minute Minimum On/Off

Keyboard LockedKeyboard Unlocked

Fan On with Plenum Temperature Switch

Figure 7: T500HCN-1 Factory-Set DIP Switch

Settings (All Off)

CLK1 CLK2

RS2

RS1

RS+V

Heating

Cooling

Fan

24VAC Common

24V

24V(c)

Table 4: T500HCN-1 Output Terminal Designations

Terminal Function

24V

24V(c)

CLK1

CLK2

RS2

RS1

RS+V

Energizes on call for heating

Energizes on call for cooling

Energizes fan on call for heating or cooling or by pressing the

Fan

button

Independent switching voltage

24 VAC from equipment transformer

24 VAC (common) from equipment transformer

Connections for remote clock/timer for alternate setpoints

Connections for outdoor air temperature or indoor remote sensors; refer to instructions included with sensors

Hcn-1wire

Figure 8: T500HCN-1 Wiring Configuration

T500 Series Non-Programmable Thermostats Product/Technical Bulletin

Page 9

Compressor/Auxiliary

Normal

Not Used

Heat/Cool: 4 Minute

(Minimum On)

Keyboard Unlocked

Economy

Single Stage

LED 1 Icon Off

LED 2 Icon Off

Compressor/Auxiliary Interlocked

Not Used Heat/Cool: 2 Minute

(Minimum On)

Keyboard Locked

Comfort

Multi-stage

LED 1 Icon (Filter)

LED 2 Icon (Wrench/Fault)

Figure 9: T500HPN-1 Factory-Set DIP Switch

Settings

LED1

2nd Stage Heat Pump

LED2 CLK1

CLK2 RS2 RS1 RS+V

1st Stage Heating

1st Stage Cooli ng

Cool Reversing Valve

Heat Reversing Valve

Fan

24VAC

Common

Table 5: T500HPN-1 Output Terminal Designations

Terminal Function

24V

24V(c)

LED 1

LED 2

CLK1

CLK2

RS2

RS1

RS+V

Energizes compressor No. 2 on a call for second-stage heating or cooling

Energizes auxiliary stage heat as third-stage heating or emergency heat

Energizes compressor No. 1 on a call for second-stage heating or cooling

Energizes fan on a call for heating or cooling or by pressing

Fan

button

Independent switching voltage

24 VAC from equipment transformer

24 VAC (common) from equipment transformer

Input connection that energizes LED 1 or LED 2 from remote status device (See Figure 10 and Table 7.)

Connections for remote clock/timer for alternate setpoints

Connections for outdoor air temperature or indoor remote sensors; refer to instructions included with sensors

Energizes reversing valve in the cooling mode

Energizes reversing valve in the heating mode

Figure 10: T500HPN-1 Wiring Configuration

Hpn-1wire

T500 Series Non-Programmable Thermostats Product/Technical Bulletin

Page 10

Heat/Cool: 4 Minute

(Minimum On/Off) Keyboard Unlocked Fan immediate with

a call for heat

Single Stage

LED 1 Icon Off

LED 2 Icon Off

Heat/Cool: 2 Minute (Minimum On/Off)

Keyboard Locked Fan on with plenum

switch

Multi-stage

LED 1 Icon (Filter)

LED 2 Icon (Wrench/Fault)

Figure 11: T500MSN-1 Factory-Set DIP Switch

Settings

2nd Stage Cooling

LED1

1st Stage Heating

LED2

1st Stage Cooli ng

CLK1 CLK2

RS2 RS1 RS+V

Fan

24VAC

Common

24V

Table 6: T500MSN-1 Output Terminal Designations

Terminal Function

24V

24V(c)

LED 1

LED 2

CLK1

CLK2

RS2

RS1

RS+V

Energizes on a call for second-stage heat

Energizes on a call for second-stage cooling

Energizes on a call for first-stage heat

Energizes on a call for first-stage cooling

Energizes fan on call for heating or cooling or by pressing the

Fan

button

Independent switching voltage

24 VAC from equipment transformer

24 VAC (common) from equipment transformer

Input connection that energizes LED 1 or LED 2 from remote status device (See Figure 12 and Table 7.)

Connections for remote clock/timer for alternate setpoints

Connection for outdoor temperature sensor and/or indoor remote sensor option; refer to instructions included with sensors

MSN-1Wire

Figure 12: T500MSN-1 Wiring Configuration

T500 Series Non-Programmable Thermostats Product/Technical Bulletin

Page 11

iring Diagrams

If the transformer (T2) is to power all of the loads R and 24V must be connected by insert ing jumper J 1 located above the relays. If a separate 24V transformer (T1) is to be used, remove the jumper J 1 to disconnect R and 24V(c).

JP1

Electronics

1st Stage

Heat

Y1 G

1st Stage

Compressor

24V

Fan

Optional

24V(c)

RS+V

RS1

Remote

Sensor

(if used)

RS2

Figure 13: T500HCN-1 Wiring Schematic

CLK2

CLK1

Remote

Clock/Timer

(if used)

Thermostat

Equipment

Hcn-1

T500 Series Non-Programmable Thermostats Product/Technical Bulletin

Page 12

If the transformer (T2) is to power all of the loads R and 24V must be connected by inserting jumper J 1 located above the relays. If a separate 24V transformer (T1) is to be used remove the jumper J 1 to disconnect R and 24V(c).

J1P

Compressor

1st Stage

Auxiliary

Y1 Y2 G O B R

1st Stage

2nd Stage

Compressor

Fan

Reverse

Val ve

Heating

Reverse

Val ve

Cooling

Optional

24V

Figure 14: T500HPN-1 Wiring Schematic

If the transformer (T2) is to power all of the loads R and 24V must be connected by inserting jumper J 1 located above the relays. If a separate 24V transformer (T1) is to be used, remove the jumper J 1 to disconnect R and 24V(c).

JP1

24V(c)

Electronics

LED1W1

LED2

Field Contact Switches

RS+V RS1 RS2

Remote

Sensor

(if used)

Electronics

CLK2

CLK1

Remote

Clock/Timer

(if used)

Thermostat

Equipment

HPN-1

1st Stage

Heat

2nd Stage

1st Stage

Cool

Heat

2nd Stage

Cool

Optional

Fan

24V

T1 T2

24V(c)

LED2

LED1

Field Contact Switches

Figure 15: T500MSN-1 Wiring Schematic

RS+V

Remote

Sensor

(if used)

RS1

RS2

CLK1

Clock/Timer

CLK2

Remote

(if used)

Thermostat

Equipment

T500 Series Non-Programmable Thermostats Product/Technical Bulletin

Page 13

ommissioning

The thermostat normally displays room temperature and mode of operation (whether cooling heating

is currently on).

hermostat Operation Overview

Table 7: LED Indicators (T500MSN-1, T500HPN-1 only)

LED Position Function

Left

Center

Right

LEDs (T500HPN, T500MSN only) indicate system activity or problems (See Table 1).

Indicates filter needs changing. Controlled by external switch on LED 1. Display of the filter symbol can be enabled; see Table 2 and Table 3.

(T500HPN-1 only) Indicates when highest stage heat is activated. Internally controlled.

Indicates a fault. Controlled by external switch on LED 2. Display of the wrench symbol can be enabled; see Table 2 and Table 3.

Used to select heating or

cooling mode of operation

Used to run fan

continuously.

Mode

Fan

Outdoor

Day/Night

Face

Used to display outdoor temperature (optional).

Used to alternate between day and night setpoints.

Used to increase/decrease values or change between Degree C or F.

Figure 16: T500 Non-Programmable Pushbuttons

T500 Series Non-Programmable Thermostats Product/Technical Bulletin

Page 14

Mode

Repeated pressing of the

Mode

button allows selection from four modes of operation (five for the T500HPN-1/Heat Pump model):

•

When the

COOL

Snowflake

symbol

and the word

are displayed, the thermostat is in the cooling mode. When the thermostat is calling for cooling, the snowflake will flash.

•

When the

Flame

symbol

and the word

HEAT

are displayed, the thermostat is in the heating mode. When the thermostat is calling for heating, the flame will flash.

•

When the

Flame

symbol

and

E Ht

(emergency heat) are displayed, the thermostat will control using the emergency heat with the compressor locked out. (T500HPN-1/Heat Pump only.)

•

When the

symbols and word

Snowflake

AUTO

and the

are displayed, the

Flame

thermostat will automatically change over between heating and cooling.

Note: The thermostat never allows less than a 1°C

(2°F) difference between cooling and heating setpoints.

•

When

OFF

is displayed, the equipment will not

operate.

Note: Use caution when using the

OFF

mode in

extremely cold weather.

Outdoor

Day/Night

Press to

select

continuous

fan operation

Mode

Fan

Figure 17: Selecting Continuous Fan Operation

Outdoor Button

When an outdoor temperature sensor (order separately) is connected to the T500 thermostat, you can display the current outdoor temperature by pressing the

Outdoor

button. If the sensor option is

not connected, the thermostat will display “— —”.

See the

Ordering Information

section.

Day/Night Button

When the T500 thermostat is first installed or after a power loss, the display will show the the temperature, and the mode. To select an alternate or

Night

temperature:

Day

symbol

•

Celsius/Fahrenheit

and

∧∧∧∧

buttons simultaneously to

Press the

∨∨∨∨

alternate between Celsius and Fahrenheit display.

Press the

•

Install a time clock using the CLK1 and CLK2

terminals, to activate the thermostat’s night mode. (The T500 Thermostat will remember the

Fan

If continuous fan is not selected, the fan will operate

night mode setpoint.) See

Terminals CLK1 - CLK2.

automatically and the fan symbol will be off. To select continuous fan operation, press the button. The Fan symbol

will be displayed.

Fan

(See Figure 17.)

T500 Series Non-Programmable Thermostats Product/Technical Bulletin

Day/Night

button,

Options: Clock

Page 15

etting the Thermostat

ptions

1. Press the

2. Set the mode to cooling

3. Select the desired temperature for equipment to maintain while in the cooling mode using the

∨∨∨∨

16 to 40°C (60 to 108°F).

4. Set the mode to heat

5. Select the desired temperature for equipment to maintain while in the heating mode using the

∨∨∨∨

5 to 30°C (38 to 88°F).

6. Press the and repeat Steps 2 through 5.

Day/Night

∧∧∧∧

buttons. The cooling setpoint range is

∧∧∧∧

buttons. The heating setpoint range is

Day/Night

button until is displayed.

button until is displayed

Changing Settings While the Keyboard is Locked

To change settings while the DIP switch is set to lock the keyboard:

1. Open the thermostat and switch the DIP switch to unlock the keyboard. (See Table 1, Table 2 and Table 3). Close the thermostat.

2. Make the necessary changes.

3. Open the thermostat and switch the DIP switch to lock the keyboard again. Close the thermostat.

Temporary Override While the Keyboard is Locked

Clock Terminals CLK1 - CLK2

The T500 thermostat has a contact closure for a clock/timer to allow the use of alternate heating and cooling setpoints.

When the contact is open, the day symbol displayed and the thermostat controls to the day setpoint. When the contact is closed, the symbol the night setpoint.

Pressing the is in night mode will switch the thermostat to the day mode, even if a clock/timer is used. The CLK contacts on the thermostat are parallel with the thermostat contacts and will change to the next command given by the clock. Therefore, if the thermostat is in night mode (contacts closed) and the thermostat is switched to the day mode (contacts open), then at the next clock control time the thermostat will stay in the day mode.

is displayed and the thermostat controls to

Day/Night

button when the thermostat

Night

Remote Sensor

The indoor remote sensor allows the T500 to be mounted away from the controlled space, and allows use of multiple sensors for temperature averaging. Order separately. See

Accessories

Table 10: Optional

Outdoor Sensor

Order separately. See

Accessories

Table 10: Optional

To alter the setpoint while the DIP switch is set to

lock the keyboard, press the the setpoint ± 3°C or ± 6°F. This will temporarily change the setting for 1 hour. If the setpoint is altered while in night mode, the thermostat will change to the day mode setting.

ensor Calibration (Fan/10 Seconds)

The internal and remote sensors can be calibrated to eliminate wire resistance errors or to match another reference.

1. Press and hold the

2. Adjust the temperature with the The temperature is shown on the lower display to the hundredths place. For example, 72°F on the large display is shown as 72 13.

∨∨∨∨

Fan

button for 10 seconds.

ower Failures

∧∧∧∧

buttons to alter

∨∨∨∨

∧∧∧∧

buttons.

T500 Series Non-Programmable Thermostats Product/Technical Bulletin

In the event of a power failure, the thermostat will retain setpoints. When power is restored, it will continue normal operation and will not require resetting unless power was lost when the thermostat was in the night mode, in which case it will return to the day mode.

Page 16

uzzy Logic Control

Over time, the T500 learns how long it takes the system to meet the load. If the system can change the room temperature quickly, the T500 allows the thermostat to drift further from setpoint before starting the equipment. If the system takes a longer period of time to change the room temperature, it will not allow the temperature to drift as far from setpoint. The T500 also takes into account the minimum On/Off times.

The 2-minute On/Off time allows the equipment to cycle more frequently at smaller differentials than the 4-minute On/Off time.

For multi-stage applications, the T500 does not bring on the next stage of cooling or heating if it knows that the system can change the temperature by 6 degrees in 1 hour, or 1 degree in 10 minutes. To verify thermostat operation, force the next stage on by changing the setpoint by more than 2 degrees.

erification

To verify proper functioning of the thermostat:

1. Press the mode. (See Figure 18.)

Mode

button to select the heat or cool

If the equipment does not come on, proceed to the

Troubleshooting

Note: If you are using the T500HPN-1 and DIP

switch number 5 is in the “on” position, the auxiliary heat will not come on when the setpoint is raised more than two degrees above room temperature (See Table 2.) Move the switch to the “off” position to force on the auxiliary heat when the setpoint is raised.

section.

Press to

select

mode (heat

or cool).

Mode

Fan

Outdoor

Day/Night

∨∨∨∨

2. Press the above or below the current ambient temperature. The thermostat should call for either heating or cooling, and should activate the fan.

∧∧∧∧

buttons to raise the setpoint

Npiface3

Figure 18: Verifying Proper Operation

T500 Series Non-Programmable Thermostats Product/Technical Bulletin

Page 17

roubleshooting

Table 8: Troubleshooting

Symptom Possible Cause Corrective Action

No display/faint display ...

Keyboard inoperative ...

Thermostat will not call for heat ...

Thermostat will not call for cooling ...

Fan does not turn on with the system ...

“AC” is displayed on the LCD ...

LCD shows missing or extra segments ...

Supply voltage incorrect Use a voltmeter to check the voltage between the 24V and

24V(c) terminals. Voltage should be between 20-30 VAC. If voltage is less than 20 VAC, disconnect the thermostat and check the voltage between 24V and the other system wires; see possible causes below. If voltage is greater than 30 VAC, troubleshoot the power source and replace the thermostat.

System transformer weak or overloaded

Thermostat damaged because system voltage was greater than 30 VAC

Keyboard locked Switch the keyboard DIP switch to the unlocked position.

Short cycle delay still in progress

Thermostat setpoint is satisfied

T500HPN-1 ONLY: If DIP switch number 5 is in the “on” position, the auxiliary heat will not come on when the setpoint is raised more than two degrees above room temperature. (See Table 2.)

Short cycle delay still in progress

Thermostat setpoint is satisfied

Fan failure Place a jumper between Terminals R and G. Fan should

20-30 VAC absent from R and C terminals

LCD failure Replace the unit.

Check and/or replace with a suitable 24V transformer.

Replace with new thermostat, and ensure new thermostat is isolated from the system using suitable relays and a transformer of the proper rating.

Wait 4 minutes, equipment short cycle protection in progress.

Raise the heating setpoint using the

Move the switch to the “off” position to force on the auxiliary heat when the setpoint is raised.

Wait 4 minutes, equipment short cycle protection in progress.

Lower the cooling setpoint using the

come on. If it does not, troubleshoot the fan system. If fan does come on, replace the thermostat.

Using a voltmeter, measure voltage between the 24V and 24V(c) terminals. If the reading is less than 20 VAC, check system transformer. If the voltage is between 20-30 VAC, replace the thermostat.

* The Non-Programmable T500 Thermostats do not have a

supercap back up. The “AC” on the LCD will therefore never flash.

button.

∧∧∧∧

button.

∨∨∨∨

T500 Series Non-Programmable Thermostats Product/Technical Bulletin

Page 18

rdering information

Table 9: Ordering Information

Item Product Code Number

Non-programmable Thermostat, Single-stage, 1 Heat, 1 Cool

Non-programmable Thermostat, Multi-stage, 2 Heat, 2 Cool

Non-programmable Thermostat, Heat Pump, 2 Compressors with Auxiliary Heat

ccessories

T500HCN-1

T500MSN-1

T500HPN-1

Table 10: Optional Accessories (including mounting hardware)

Item Product Code Number

Remote Indoor Air Temperature Communication Module with Integral Sensor

Outdoor Air Temperature Communication Module with Outdoor Air Sensor

Outdoor Air Temperature Communication Module with Duct Mount Sensor

eplacement and Repair Parts

The SEN-500 series of products allows for easy replacement of the sensor. For a replacement sensor, contact the nearest Johnson Controls

branch office or wholesale distributor and order using the information from

Table 11: Replacement Parts

and

Table 10: Optional Accessories

SEN-500-1

SEN-500-2

SEN-500-3

Table 11: Replacement Parts

Item Product Code Number

Replacement Outdoor Air Temperature Communication Module

Replacement Outdoor Air Temperature Sensor (includes mounting hardware)

Replacement Duct Mount Temperature Sensor (includes mounting hardware)

SEN-500-603

SEN-500-604

SEN-500-605

Table 12: Repair Parts

Item Product Code Number

3 in. Sensor Probe (use with outdoor air sensor)

8 in. Sensor Probe (use with duct mount sensor)

T500 Series Non-Programmable Thermostats Product/Technical Bulletin

SEN-500-601

SEN-500-602

Page 19

Notes

T500 Series Non-Programmable Thermostats Product/Technical Bulletin

Page 20

pecifications

Product

Power Requirements

Relay Contact Rating

Recommended Wire Size

Thermostat Measurement

Range

Outdoor Air Temperature

Indication Range

Control Range

Display Resolution

Minimum Deadband

°C/°F Conversion

Ambient Operating

Conditions

Ambient Storage

Conditions

Dimensions (H x W x D)

Shipping Weight

FCC Compliance

The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these specifications, consult the local Johnson Controls office. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products

T500HCN-1, T500MSN-1, T500HPN-1

20-30 VAC, 50/60 Hz, 24 VAC nominal

Maximum Inductive: 1 ampere with surges to 3 amperes, 24 VAC Class 2 Maximum Resistive: 1 ampere, 24 VDC (2000 VA Maximum for all outputs) Minimum: 10 uA for 24 VAC circuit; 10 mA for 24 VDC circuit

24-18 gauge

0 to 48°C (28 to 124°F)

-48 to 48°C (-50 to 124°F)

Heating: 5 to 30°C in 1° steps; 38 to 88°F in 1° steps Cooling: 16 to 40°C in 1° steps; 60 to 108°F in 1° steps

1C or 1F

1°C or 2°F between heating and cooling

20°C = 68°F, each Celsius degree above or below 20°C = 2°F

0 to 55°C (32 to 131°F), 5 to 90% RH non-condensing

-34 to 55°C (-30 to 131°F)

114.3 x 101.6 x 22.2 mm (4 1/2 x 4 x 7/8 in.)

0.171 kg (0.37 lb)

This equipment has been tested and found to comply with the limits for a Class A digital device and verified to Class B pursuant to Part 15 of FCC Rules. These limits are designed to provide reasonable protection against harmful interference when this equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his/her own expense.

This device complies with Class A Part 15 of the FCC rules. It was also verified to Class B. Operation is subject to the following two conditions: (1) This device may not cause harmful interference. (2) This device must accept any interference received, including interference that may cause undesired operation. This Class A digital apparatus meets all of the requirements of the Canadian Interference-Causing Equipment Regulations. Cet appareil numerique de la Classe A respecte toutes les exigences du Reglement sur le materiel brouilleur du Canada.

Controls Group

507 E. Michigan Street P.O. Box 423 Printed in U.S.A. Milwaukee, WI 53201 www.johnsoncontrols.com

T500 Series Non-Programmable Thermostats Product/Technical Bulletin