Friedrich 920-075-13 (1-11) User Manual
14
Chassis Final Connections
With the chassis in place, you are now ready to begin chassis
connections:
connections:
Electrical Shock Hazard
WARNING
Pull out electrical disconnect on front of
the chassis and turn off all power to the
unit before servicing.
the chassis and turn off all power to the
unit before servicing.
Failure to do so can result in property
damage, personal injury and/or death.
damage, personal injury and/or death.
Final Installation Checklist
Inspect and ensure that all components and accesso-
ries have been installed properly and that they have
not been damaged during the installation process.
ries have been installed properly and that they have
not been damaged during the installation process.
Ensure that all installation instructions concerning
clearances around the unit have been adhered to.
clearances around the unit have been adhered to.
Check to ensure that the unit air filter, indoor coil, and
outdoor coil are free from any obstructions.
outdoor coil are free from any obstructions.
Ensure that the circuit breaker(s) or fuse(s) and supply
circuit wire size have been sized correctly.
circuit wire size have been sized correctly.
Check the condensate water drain(s) to ensure that
they are adequate for the removal of condensate
water, and that they meet approval of the end user.
they are adequate for the removal of condensate
water, and that they meet approval of the end user.
Ensure that the entire installation is in compliance with
all applicable national and local codes and ordinances
having jurisdiction.
all applicable national and local codes and ordinances
having jurisdiction.
Secure all access panels (i.e. front cover and/or control
box), apply power to the unit, then start the unit, and
check for proper operation in each mode. Instruct the
owner or operator regarding the unit’s operation, and
the recommended routine maintenance schedule.
box), apply power to the unit, then start the unit, and
check for proper operation in each mode. Instruct the
owner or operator regarding the unit’s operation, and
the recommended routine maintenance schedule.
NOTE: Maintaining a log for recording the dates of mainte-
nance and/or service is recommended, and should be
suggested to the owner or operator of the equipment.
nance and/or service is recommended, and should be
suggested to the owner or operator of the equipment.
Move the thermostat switches to “OFF” and “AUTO”.
This will keep the thermostat from cycling the chassis
until final connections are complete.
This will keep the thermostat from cycling the chassis
until final connections are complete.
Connect the duct work onto the 10” collar. Plastic wire
ties (field supplied) are suggested to secure the duct
work in place. Use 2 wire ties, one for each inner and
outer flex duct sleeve.
ties (field supplied) are suggested to secure the duct
work in place. Use 2 wire ties, one for each inner and
outer flex duct sleeve.
Review the Final Installation Checklist before replacing
the power quick disconnect, reconnecting power to the
chassis or operating the chassis.
the power quick disconnect, reconnecting power to the
chassis or operating the chassis.
Present the owner or operator of the equipment with the
Installation & Operation Manual, all accessory installation
instructions, and the name, address and telephone number
of the Authorized Friedrich Warranty Service Company in
the area for future reference if necessary.
Installation & Operation Manual, all accessory installation
instructions, and the name, address and telephone number
of the Authorized Friedrich Warranty Service Company in
the area for future reference if necessary.
Chassis Operation
Fresh Air Door
Low Ambient Compressor Cut Out
Room Freeze Protection
The Fresh Air Door is an “intake” system. The fresh air door
is opened via a slide on the front of the chassis located just
above the indoor coil. Move the slide left to open and right to
close the fresh air door. The system is capable of up to 60
is opened via a slide on the front of the chassis located just
above the indoor coil. Move the slide left to open and right to
close the fresh air door. The system is capable of up to 60
CFM of fresh air at .3 H20 internal static pressure.
Each chassis is equipped with low ambient protection in the
form of a thermistor, which will prevent compressor opera-
tion at low suction temperature.
form of a thermistor, which will prevent compressor opera-
tion at low suction temperature.
A.
B.
C.
This feature will monitor the indoor room conditions and in
the event that the room falls below 40ºF the unit will cycle
on high fan with the electric heater. This occurs regardless
of mode.
the event that the room falls below 40ºF the unit will cycle
on high fan with the electric heater. This occurs regardless
of mode.