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© 2013 

 553_D - 04/13

36 of 48

A Watts Water Technologies Company

The thermostat has three humidification modes.

Mode

Operation

HM1

Stand Alone Humidifier

Humidifier operates independently of the HVAC system.
Available in all modes except off.

HM2

Humidifier with Fan

Humidifier ducted together with HVAC system. The system fan is oper-
ated whenever the humidifier is operating. This is only available when 
operating a conventional heating system with a fan.
Available in all modes except off.

HM3

Humidifier with Air Heating

Humidifier ducted together with HVAC system. The air system must be 
heating (heat pump, furnace, electric or hydronic fan coil) in order to 
allow the humidifier to operate.
Available when heating.

The thermostat has three dehumidification modes.

Mode

Operation

DHM1

Stand Alone Dehumidifier

Dehumidifier operates independently of the HVAC system.
Available in all modes except off.

DHM2

Coil Dehumidification

A DX coil compressor is operated with the blower fan operating at its 
dehumidification speed.

DHM3

HRV Dehumidification
(requires an outdoor temperature reading to be available)

The HRV is operated based upon indoor dew point and outdoor air tem-
perature. The HRV operates when the indoor dew point is 5.5°F (3.0°C) 
above the outdoor temperature. The HRV is shut off when the indoor dew 
point falls to 2°F (1.0°C) above the outdoor temperature.
Available in all modes except off.

DX Coil Frost Protection

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When operating a coil dehumidification system (DHM2), frost protection of the DX coil 
can be provided when an optional Duct Sensor 083 is installed. In the event that the 
duct air temperature nears freezing, the thermostat removes the dehumidification signal 
and the cooling compressor is allowed to operate together with the fan operating at full 
speed to allow the DX coil to warm up.

Summary of Contents for tekmarNet 553

Page 1: ...res Programmable Schedule Zone Synchronization Zone Post Purge Warm Weather Shut Down Cooling Interlock Auto Heating Cycle Temporary Hold Away Scene Key Additional Features 2 Auxiliary Sensor Inputs t...

Page 2: ...r Interface 8 Home Screen 8 Symbols Description 8 Programmable Settings 9 Programming Menus 9 Set Temp Menu 10 13 Time Menu 14 Schedule Menu 15 16 Display Menu 16 17 Scenes Menu 17 Monitor Menu 18 21...

Page 3: ...ring viewing and adjusting the display screen Approximately 5 feet 1 5 m off the finished floor The maximum length of wire is 500 feet 150 m Strip wire to 3 8 10 mm for all terminal connections Use st...

Page 4: ...e Manager This allows easy wiring for retrofit applications Application specific wiring diagrams are provided in the 553_A brochure Wall Stud Thermostat Front Thermostat Base If a gang box is not used...

Page 5: ...fault with the previously tried zone on the House Control Wiring Center or Zone Manager If the thermostat display continues to be off or is cycling on and off there may be a fault on the thermostat If...

Page 6: ...nventional Rc to ACC heat pump Y HEAT ON Rc to Y Y COOL ON Rc to Y W2 HEAT ON Rc to ACC HUMIDIFY ON Rc to ACC W HEAT Rh to W DEHUMIDIFY ON Rc to ACC HUMIDIFY ON Rc to ACC heat and cool Rc to Y two sta...

Page 7: ...e access level Set to Unlock during the installation process Note tekmarNet system controls include a Global Lock that locks all connected thermostats Set the tekmarNet system control to unlock to all...

Page 8: ...displayed setting SCENE AWAY Operating at Away temperature TEMPORARY HOLD Holds temperature for 3 6 9 or 12 hours WWSD Warm Weather Shut Down COOL Cooling system is on MIN or MAX Reached the room min...

Page 9: ...wards counterclockwise in above illustration through the menus Touch ENTER to enter a menu Setting Items Touch or arrow to adjust the setting if required Touch NEXT ITEM to advance to the next item wi...

Page 10: ...ns Scenes is set to Away All or Guest Default 62 F 16 5 C HEAT MINIMUM ROOM LIMIT Set the minimum room heating limit Access Level Installer Range 40 to 95 F 4 5 to 35 0 C Conditions Always available D...

Page 11: ...during the event Access Level Installer Range CTRL control 40 to 100 F 4 5 to 38 0 C OFF Conditions An outdoor sensor must be available and Schedules are in use or Scenes is set to All or Guest Defau...

Page 12: ...HP or AC Default 100 F 38 0 C FLOOR MINIMUM Set the floor heating temperature while in the event Access Level Installer Range OFF 40 to 122 F 4 5 to 50 0 C Conditions Sensor 1 or 2 is set to Floor an...

Page 13: ...s 6 minutes per hour Access Level Installer User Range Auto 10 to 90 ON Conditions G O RELAY set to FAN or ACC Relay set to FAN and Schedules used or Scenes set to Guest or All 10 to 90 available if V...

Page 14: ...ions Always available Default JANUARY DAY OF MONTH Select the day of the current month Access Level Installer User Range 1 to 31 Conditions Always available Default 1 YEAR Select the current year Acce...

Page 15: ...AM when Event Day is 4 EVENT 3 The third programmable schedule time period of the day The temperature settings are used during this time period SuMoTuWeThFrSa Access Level Installer User Range 12 00 A...

Page 16: ...the number of temperatures per day Access Level Installer User Range 2 or 4 Conditions Schedule setting is set to Zone or Master 1 2 3 4 Default 2 24 HOUR 7 DAY Access Level Installer User Range 24 h...

Page 17: ...t OFF LOCAL NETWORK GROUP Select if scenes and time clock are shared when connected to a tekmarNet system OFF Send and receive messages ON Receive messages only Access Level Installer Range OFF or ON...

Page 18: ...stat and all air group member thermostats Access Level Installer Range 58 to 212 F 50 0 to 100 0 C Conditions Setup menu setting Air Group Master must be set to 1 through 16 Default Not applicable W S...

Page 19: ...ns An outdoor temperature is available Default Not applicable OUTDOOR LOW The lowest recorded outdoor air temperature measurement Touch the number and the ENTER key to reset Access Level Installer Use...

Page 20: ...hours HEAT Y HOURS The total number of hours the heat pump has been in heating operation Touch the number and the ENTER key to reset Access Level Installer User Range 0000 to 9999 hours Conditions Y...

Page 21: ...of hours the humidifier has been operated Touch the number and the ENTER key to reset Access Level Installer User Range 0000 to 9999 hours Conditions Humidify Mode is set to HM1 2 3 Default 0000 hour...

Page 22: ...ing could occur Baseload On Baseload heating is on even though the room temperature is satisfied Reduces heat up time when the sun sets in the evening Hydronic Heat Off The air group master is in cool...

Page 23: ...taller Range 5 to 5 F 3 0 to 3 0 C Conditions Always available Default 0 F 0 0 C OFFSET HUMIDITY Manual offset correction of the room humidity Access Level Installer Range 10 to 10 Conditions Always a...

Page 24: ...HUMIDITY SENSOR Select whether the built in humidity sensor is on or off Access Level Installer Range OFF or On Conditions Always available Default On Y RELAY Select the cooling equipment the Y relay...

Page 25: ...tem control is connected and W TERM is set to HRF1 or HRF2 or connected to a tN2 Wiring Center Default OFF ACCESSORY RELAY Select the equipment the accessory relay operates W2 Second stage heat HUM Hu...

Page 26: ...r must be operating before the W2 can turn on AUTO Automatic PID staging OVR W2 only turns on when Mode is set to EMER Available only when Y Relay is set to HP Access Level Installer Range AUTO 5 to 1...

Page 27: ...xcessive heat cool switchovers Access Level Installer Range 10 to 180 minutes Conditions Y RELAY is set to AC or HP Default 30 minutes BALANCE POINT SCHEDULE Select if the heat pump balance point shou...

Page 28: ...rol Default SYNC Y DURING W2 Select whether the heat pump compressor can operate when W2 heat is on When Mode is set to EMER emergency the heat pump compressor Y is always shut off Access Level Instal...

Page 29: ...priority Access Level Installer Range HEAT or COOL Conditions Air Group Master is set to 1 to 16 Default COOL G O RELAY Select the operation of the G O relay Access Level Installer Range FAN or OFF Y...

Page 30: ...set to COIL and W1 or W2 TERMINAL is set to COIL or FURN Default 0 30 minutes HEAT COIL MINIMUM Select the minimum coil temperature before operating the fan for heating Access Level Installer Range O...

Page 31: ...rature is satisfied When the air temperature is below the Set Heat Room temperature the thermostat operates the heating system to maintain the Set Heat Room temperature The floor is never heated above...

Page 32: ...h this occurs is known as the balance point When the outdoor temperature falls below the balance point the heat pump is shut off and the backup supplemental heat source is operated to heat the buildin...

Page 33: ...Shut Down When the outdoor air temperature falls below the Cooling Cold Weather Shut Down CWSD setting on the thermostat the cooling system is shut off The first stage operates on a temperature diffe...

Page 34: ...e mix system pump is operated If the thermostat operates a motorized or thermal motor zone valve the W1 Pump setting should be set to On If the thermostat operates a thermal motor wax actuator zone va...

Page 35: ...off When a duct temperature sensor is installed the length of post purge is based on the air duct temperature and the Heat Purge or Cool Purge temperature settings When there is no duct temperature se...

Page 36: ...ier Dehumidifier operates independently of the HVAC system Available in all modes except off DHM2 Coil Dehumidification A DX coil compressor is operated with the blower fan operating at its dehumidifi...

Page 37: ...D setting This allows the air system heat pump fan coil or furnace to heat the building during mild outdoor weather and avoids heating up the radiant floor slab If the Set Heat Room temperature is adj...

Page 38: ...et Heat Room AWAY air heating or air heating with floor sensor Floor Min air heating with floor sensor Floor Min air heating with floor sensor Set Cool Room air cooling Set Cool Room air cooling Set C...

Page 39: ...uires the thermostat to be connected to a tekmarNet system Once the type of schedule has been selected the thermostat can support schedules that have either 2 events per day 4 events per day Schedules...

Page 40: ...ion Scenes Away Operation Scenes All Operation Scenes Guest Operation 1 Permanent or Schedule Permanent or Schedule Permanent or Schedule Permanent 2 Scene 1 Away Away Away 3 Scene 1 Scene 1 Permanent...

Page 41: ...ed back to scene 1 and the spare bedrooms resume operation at the temperature settings Commercial Buildings Commercial buildings are typically in use on a predictable schedule and normally the buildin...

Page 42: ...rmostats that have errors By referring to the address documentation it simplifies the process to locate and correct error messages Access Levels Section O The thermostat Toolbox menu supports four acc...

Page 43: ...tings in the Monitor menu SCHEDULE MENU SAVE ERROR The thermostat failed to read the Schedule menu settings from memory and has reloaded the factory default settings The thermostat continues to operat...

Page 44: ...ust be set to measure an air or floor temperature NO HEAT RELAY There are no heat relays configured To clear the error set W TERM to HRF1 HRF2 CONV COIL FURN or OTHR or set ACC RELAY to W2 W2 SOURCE B...

Page 45: ...procedures LOCAL HUMIDITY SENSOR ERROR The built in humidity sensor is faulty The error cannot be field repaired Contact your tekmar sales representative for repair procedures SENSOR 1 OR 2 SHORT CIRC...

Page 46: ...e air group master to None or install an air group master on the system SCHEDULE MASTER ERROR Two thermostats on the tekmarNet system have been set to the same Schedule Master number The thermostat op...

Page 47: ...tekmarNet system control connected to the tekmarNet system and not on this thermostat Error Messages 5 of 5 Technical Data tekmarNet Thermostat 553 Two Stage Heat One Stage Cool Fan Literature 553_A...

Page 48: ...ar during the war ranty period This Limited Warranty does not cover the cost of the parts or labor to remove or transport the defec tive Product or to reinstall the repaired or replacement Product all...

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