3. Separate the thermostat and back plate. 4. Route thermostat wires through hole in back plate. Level back plate against wall (for aesthetic value only - thermo- stat need not be leveled for proper operation) and mark wall through 2 mounting holes.
3 minutes if a change in set point, or a change in mode occurs. Connection to “B” E4 will be displayed if the thermostat has an internal memory failure. terminal required on If E4 appears, replace the thermostat.
V. THERMOSTAT CONFIGURATION This thermostat has been carefully conﬁ gured at the factory to provide optimum operation for most installations. The settings programmed into it at the factory should NOT be changed unless determined to be absolutely necessary by a qualiﬁ ed HVAC contractor.
FRIEDRICH AIR CONDITIONING CO. INC. Post Ofﬁ ce Box 1540 · San Antonio, Texas 78295-1540 4200 N. Pan Am Expressway · San Antonio, Texas 78218-5212 (210) 357-4400 · FAX (210) 357-4480 www.friedrich.com Printed in the U.S.A. 920-162-01 (5-05)