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    T500 Series Programmable Thermostats Product/Technical Bulletin

W

iring Diagrams

1st Stage

Compressor

1st Stage

Heat

Fan

W1

Y1

G

24V(c)

R

24V

T1

T2

RS+V RS1 RS2

Remote

Sensor

(if used)

Thermostat

Equipment

Electronics

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

P

P

Hcp-1diag

J 1

P

Optional

Figure 15: T500HCP-1 Wiring Schematic

Summary of Contents for T500HCP-1

Page 1: ...and installation is simple and fast for reduced cost Figure 1 T500 Series Programmable Thermostats Features and Benefits Low Profile Design Complements any decor No Batteries Required Retains schedule...

Page 2: ...t power supply before wiring connections are made to prevent electrical shock or possible damage to the equipment Installation and Wiring Note When replacing an existing thermostat remove and use wire...

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 Fig...

Page 4: ...locking mechanism press the lock piece up and into the base while gently prying open the thermostat at the same time Use caution to avoid cracking the thermostat base or cover Thermostat Base Plastic...

Page 5: ...d of the night event Smart Fan remembers the fan selection automatic cycling or continuous fan for the morning day and evening events and reverts back Off Allows the fan to cycle with equipment or run...

Page 6: ...4 5 2 Events Per Day Smart Fan Enabled Heat Cool 2 Minute Minimum On Keyboard Locked Fan Immediate with Heat Call Fan On with Plenum Switch Figure 7 T500HCP 1 Factory Set DIP Switch Settings All Off...

Page 7: ...t mode Y2 Energizes compressor No 2 on call for second stage heating or cooling W1 Energizes auxiliary heat as last stage heating or first stage in emergency heat Y1 Energizes compressor No 1 on call...

Page 8: ...eating See Note Y1 Energizes compressor contactor See Note Energizes on call for cooling See Note G Energizes fan on call for heating or cooling or by pressing Fan button R Independent switching volta...

Page 9: ...Designations Terminal Function W2 Energizes on a call for second stage heat Y2 Energizes on a call for second stage cooling W1 Energizes on a call for first stage heat Y1 Energizes on a call for firs...

Page 10: ...2 RS V RS1 RS2 Remote Sensor if used Thermostat Equipment Electronics If the transformer T2 is to power all of the loads R and 24 must be connected by inserting jumper J 1 located above the relays If...

Page 11: ...2 Field contact switches 2nd Stage Compressor Electronics COM OCC all other events NO NC COM UNOCC night event if thermostat loses power NO NC Thermostat Equipment Hpp 1diag If the transformer T2 is t...

Page 12: ...en W1 and Y1 and wire O or B as shown Conventional Single Stage Heat Cool between W1 and Y1 and wire as shown in Figure 12 Note that the O and B terminals are not used in this application If the trans...

Page 13: ...cs COM OCC events NO NC COM UNOCC night event or if thermostat NO NC Thermostat Equipment Reverse Valve If the transformer T2 is to power all of the loads R and 24V must be connected by inserting jump...

Page 14: ...e heat is activated internally controlled Right An external switch on the LED 1 Display enables the wrench symbol see Table 1 Thermostat Operation Overview Mode Clock Set Temp Outdoor Fan Program Resu...

Page 15: ...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 roo...

Page 16: ...ontrol the temperature according to the setpoint of the latest event Table 7 is an example of event times and setpoints for a given week using a 4 event program See the owner s manual for a blank tabl...

Page 17: ...s the Mode button until heat is displayed 2 Press the Set Temp button The mode heat or cool event morning day evening or night symbols and the present setpoint will be displayed 3 Press the or buttons...

Page 18: ...rogram settings to the selected days of the week 9 Repeat the procedures for Setting the Event Times for any remaining unprogrammed days of the week 10 When finished verify that all events are program...

Page 19: ...d Unlocked To implement a temporary change from the current event setpoint for a 3 hour period 1 Press the or buttons to change the scheduled setpoint 3 C or 6 F The current mode of operation will app...

Page 20: ...able 10 Optional Accessories Power Failures If power fails AC will be displayed for 2 hours After 2 hours the display will go blank If power is restored in the first 2 hours the internal clock will be...

Page 21: ...nsformer of the proper rating Keyboard inoperative Keyboard locked Switch the keyboard DIP switch to the unlocked position Thermostat will not call for heat Compressor delay still in progress Wait equ...

Page 22: ...unt Sensor SEN 500 3 Conversion Module ACC 500 1 Thermostat Wall Plate ACC 500 2 Replacement and Repair Parts The SEN 500 series of products allows for easy replacement of the sensor For a replacement...

Page 23: ...d T500MSP 1 only Single Pole Double Throw The normally open contact is closed in the night event or if the thermostat loses power The normally closed contact is closed in all other events Thermostat M...

Page 24: ...ipment 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 The performance specifications are nomin...

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