background image

© 2010 

  D 508 - 05/10 

8 of 12 

View Menu

ROOM TARGET

The current desired air temperature for the space. This item is 
only available in the Installer access level.

(Must have an active 

air sensor.)

ROOM

The current air temperature for the space. 

(Must have at least one 

active air sensor. This is the average of all active air sensors.

OUTDOOR

The current temperature at the outdoor sensor.
(SENS must be set to OUT.)

SLAB

The current slab temperature. 

(Must have an active slab sensor.)

The MIN segment is displayed when running at Slab Minimum.

MENU BUTTON

The menus display in the Menu Field at the left of the LCD. 
Three menus are available:

• View
• Adjust
• Schd (Schedule)

To select a menu, press and release the Menu button.

ITEM BUTTON

In each menu, a group of items can be selected. The abbreviated name of the selected 
item displays in the Item field of the LCD display.

•  To view the next available item, press and release the Item button. 
•  To view the previous item, hold down the Item button and press and release the Up
  

button. 

ADJUSTING A SETTING

To adjust a setting:
1. Use the Menu button to select the appropriate menu.
2. Use the Item button to find the desired setting.
3. Use the Up or Down button to adjust the setting.

User Interface

Summary of Contents for D 508

Page 1: ...he thermostat s display has four distinct fields These fields are the Menu field the Item field the Number field and the Status field The four buttons on the face of the thermostat are used to navigat...

Page 2: ...th temperature swings and equipment cycles AUXILIARY SENSOR The thermostat has a single built in sensor to measure air temperature at the thermostat In addition to the built in sensor the thermostat h...

Page 3: ...er of these two ON times During light heating loads overheating can occur due to the minimum slab temperature requirements During heavy heating loads the maximum slab temperature setting limits the ON...

Page 4: ...a freeze protection is enabled that allows the Heat relay to be operated to keep the zone above 35 F 2 C STEP THREE MOUNTING THE BASE The thermostat should be installed on an interior wall of the des...

Page 5: ...ected to the auxiliary sensor input Connect the two wires from the auxiliary sensor to the Sensor terminals Heat Relay Rh W The Heat Relay Rh W terminals are an isolated output There is no power avail...

Page 6: ...d Switch C Input Power R R H8002A X X Input Power 24 V ac 10 60 Hz 11 VA Class 2 End Switch 24 V ac 2 A Pump Relays 115 V ac 5 A Zone Power 115 V ac 12 A Made in Canada tektra 1031 01 Use at least 167...

Page 7: ...Sensor 24 V ac Class 2 Transformer 115 V ac Unpowered Relay Wiring to Switching Relay Auxiliary Sensor Zone Pump L N 115 V ac W T T R NO POWER 2 Sensor 1 24 V 10 50 60 Hz 1 5 VA 24 V ac 2 A Class 2 I...

Page 8: ...ing at Slab Minimum MENU BUTTON The menus display in the Menu Field at the left of the LCD Three menus are available View Adjust Schd Schedule To select a menu press and release the Menu button ITEM B...

Page 9: ...ilable in the Installer access level Must have an active slab sensor 34 to 122 F OFF 1 0 to 50 0 C OFF SENSOR Selects the type of auxiliary sensor present This item is only available in the Installer...

Page 10: ...hould be replaced or returned for repair ROOM OPEN The thermostat s internal air sensor is open circuit This cannot be repaired in the field Either turn off the internal sensor and use an auxiliary se...

Page 11: ...11 of 12 2010 D508 05 10 Notes...

Page 12: ...uct or from defects in workmanship or materials including any liability for fundamental breach of contract The pass through Limited Warranty applies only to those defective Products returned to tekmar...

Reviews: