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15

Warranty

ONE YEAR LIMITED WARRANTY

Motors & Armatures Inc. warrants each new MARS thermostat against any defects due to
non-conforming material or workmanship for a period of one year after the original date of
purchase by a professional service technician and does not include the cost of removal or
re-installation.  This warranty extends to the contractor or dealer who purchased the
product from a wholesaler.  For warranty claims, consumers should contact the contractor
or dealer who installed the thermostat.

This warranty and Motors & Armatures’ liability does not include damage to merchandise or
thermostat resulting from accident, alteration, neglect, misuse, improper installation, or any
other failure to follow Motors & Armatures’ installation and operating instructions.  Contact
Motors & Armatures Inc. for full details on product warranty policy.

Motors & Armatures Inc.

250 Rabro Drive East

Hauppauge, NY 11788

70803-IM  12/18/06  2:10 PM  Page 15

Summary of Contents for 70803

Page 1: ...INSTALLATION AND OPERATING INSTRUCTIONS Non Programmable Electronic Thermostat Heat Cool Model 70803 70803 IM 12 18 06 2 10 PM Page 1...

Page 2: ...t the system control to test the installation This will damage the thermostat and void the warranty This thermostat is equipped with automatic compressor protection to prevent damage due to short cycl...

Page 3: ...ntly depressing the bottom locking tab and swinging the back plate up and away 4 Place the back plate against the wall in the desired mounting location with the thermostat wires protruding from the wa...

Page 4: ...the battery compartment door install 2 AA Alkaline batteries included 14 Remove the clear plastic film from the display Testing The New Thermostat WARNING Do not switch the system to cool if the outd...

Page 5: ...ystem should shut down within several seconds The LCD will again display only the room temperature Programming The User Settings Temperature Differential is factory set at 5 F 0 25 C for both heating...

Page 6: ...et ting of 0 30 or 60 seconds 2 When the desired setting is made release the key and the unit will automatically store the setting after 5 seconds Operating The New Thermostat 1 Set the System switch...

Page 7: ...icates this feature has been activated Once the 5 minute delay expires the snowflake will illuminate continuously and the system will be able to re start when called upon NOTE For the purpose of unit...

Page 8: ...Blinking snowflake flame Allow the 5 minute compressor lock out to expire System turns on off Adjust the differential setting on the thermostat too frequently or A high differential decreases cycle r...

Page 9: ...I is displayed Reduce room temperature or allow a newly installed thermostat to acclimate HI indicates a room temperature reading greater than 90 F 32 C LO is displayed Increase room temperature or al...

Page 10: ...10 Wiring Diagrams Typical 5 Wire System RC RH G Y W B O Inst HEAT 24 VAC TRANSFORMER COM HOT COOL 24 VAC TRANSFORMER COM HOT FAN CONTROL COOL CONTROL HEAT CONTROL 70803 IM 12 18 06 2 10 PM Page 10...

Page 11: ...l Single Stage Heat Pump System RC RH G Y W B O Install Jumper Install Jumper C TR REV VALVE COOL ENERGIZED 24 VAC TRANSFORMER COM HOT FAN CONTROL COMPRESSOR CONTROL REV VALVE HEAT ENERGIZED 70803 IM...

Page 12: ...12 Wiring Diagrams Typical 2 Wire Millivolt System RC RH G Y W B O In C TR COM HEAT CONTROL 24 VAC TRANSFORMER HOT 70803 IM 12 18 06 2 10 PM Page 12...

Page 13: ...13 Wiring Diagrams Typical 4 Wire System RC RH G Y W B O Install Jumper C TR HEAT CONTROL COM 24 VAC TRANSFORMER HOT COOL CONTROL FAN CONTROL 70803 IM 12 18 06 2 10 PM Page 13...

Page 14: ...14 70803 IM 12 18 06 2 10 PM Page 14...

Page 15: ...ho purchased the product from a wholesaler For warranty claims consumers should contact the contractor or dealer who installed the thermostat This warranty and Motors Armatures liability does not incl...

Page 16: ...INSTALLATION AND OPERATING INSTRUCTIONS Non Programmable Electronic Thermostat Heat Cool Model 70803 70803 IM 12 18 06 2 10 PM Page 16...

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