Mars 70810 Betriebsanleitung Seite 1

INSTALLATION AND OPERATING INSTRUCTIONS5-2 Programmable ElectronicThermostat Heat/Cool®Model 7081070810-IM 12/21/06 2:52 PM Page 1

10TroubleshootingSYMPTOM CORRECTIVE ACTIONDisplay is blank Check thermostat wiring & connections.Check circuit breaker/fuse panel.No heat Set syst

11Wiring DiagramsTypical 4-Wire SystemRC RHCGYWBOFANCONTROLHEATCONTROLInstall Jumper24 VACTRANSFORMERCOOLCONTROLCOMHOT70810-IM 12/21/06 2:52 PM Pag

12Wiring DiagramsTypical 5-Wire SystemRC RHCGYWBOFANCONTROLHEATCONTROLCOOLCONTROLHEAT 24 VACTRANSFORMERCOMHOTCOOL 24 VACTRANSFORMERCOMHOT70810-IM 12/

13Wiring DiagramsTypical 2-Wire Millivolt SystemRC RHCGYWBOHEATCONTROL24 VACTRANSFORMERCOMHOT70810-IM 12/21/06 2:52 PM Page 13

14Typical Single Stage Heat Pump SystemRC RHCGYWBOFANCONTROLCOMPRESSORCONTROLREV. VALVECOOL ENERGIZEDREV. VALVEHEAT ENERGIZED 24 VACTRANSFORMERCOMHOTI

15WarrantyONE YEAR LIMITED WARRANTYMotors & Armatures Inc. warrants each new MARS thermostat against any defects due tonon-conforming material or

INSTALLATION AND OPERATING INSTRUCTIONS5-2 Programmable Electronic Thermostat Heat/Cool®Model 7081070810-IM 12/21/06 2:52 PM Page 16

2Compatible with low voltage single stage gas, oil or electric heating or cooling systems and single stage heatpumps. For use on 24VAC systems (not t

3Removing The Existing Thermostat1) CAUTION: Make certain the power to the system has been disconnected. 2) Remove the cover of the old thermostat a

49) Carefully place the thermostat body face down on a soft surface to expose the main circuit board. Gentlyset the following switches in the correct

52) Set the fan switch to the ON position. The system blower should start.3) Set the fan switch to the AUTO position. The system blower should stop.

62) When the desired setting is made, release the key and the unit will automatically store the setting after 15seconds.Programming & Operating Th

7Customizing the Program1) Set the System switch to the HEAT or COOL position and the Fan switch to either the AUTO or ON posi-tion. NOTE: In AUTO,

8Vacation Hold1)The thermostat can be set to hold a single specific temperature for up to30 consecutive days. Upon activation, the thermostat will ho

9• Compressor Protection: To protect the system compressor(s) from damage, the thermostat features a 5minute delay. After the cooling system (or heat