7.1.1.2 Installation of the Condenser Fan Motor
1)
Reverse the above process.
7.1.2 Compartment Fans
There are two compartment fans located with-in the dual zone wine cellar. Both the upper and lower
compartment has a dedicated fan for independent air circulation of each zone.
The compartment fans are located in the supply air compartment and mounted to the evaporator cover
(See figure 12.19). The fans draw air from the return air compartment, across the evaporator coil and
into each compartment area.
Each compartment has its own dedicated return air damper. This damper is automatically drawn open
when that compartment fan is running. The damper door consists of a Mylar material that is taped into
position and simply opens when air is drawn through it when the compartment fan is running.
The following sequence is how the compartment fans relate to the basic system operation.
SEE PHOTO SECTION FOR REFERENCE TO ABOVE MENTIONED FIGURES
7.1.2.1 Compartment Fan Operation
Typical compartment call for cooling cycle:
At cut-in temperature:
On:
Compressor, Condenser Fan, & Compartment Fan
Off:
Heater / Fan
At cut-out temperature:
Off:
Compressor, Condenser Fan, Compartment Fan, Heater / Fan
The compressor and condenser fan cycle on and off together. The compressor has a minimum off time of
five (5) minutes.
A call for cooling in either compartment will activate the compartment fan. The other compartment fan
will not run if there is no call for cooling.
A call for cooling in either compartment will energize the fan for that compartment.
A call for heat in either compartment will de-energize the fan for that compartment.
If the set-point for either compartment has been obtained the fan for that compartment will be de-ener-
gized.
If a compartment has a call for cooling while the other compartment is satisfied.
The compressor and condenser fan will energize.
The compartment fan for the call for cooling compartment will energize.
The compartment fan for the satisfied compartment will remain off.
This will prevent evaporator air from being circulated into the satisfied compartment. However, the
heater / fan for the satisfied compartment may energize to heat any cool air which will migrate or con-
vect into that compartment.
39
2010 - Viking Preferred Service
SMR-0005
Summary of Contents for DFUW244CL
Page 6: ...Section 1 Introduction to Dual Zone 2010 Viking Preferred Service SMR 0005 ...
Page 10: ...Section 2 Dual Zone Characteristics 2010 Viking Preferred Service SMR 0005 ...
Page 16: ...Section 3 Refrigeration Systems 2010 Viking Preferred Service SMR 0005 ...
Page 27: ...Section 4 TruProtect Control Diagnostics 2010 Viking Preferred Service SMR 0005 ...
Page 30: ...Section 5 Mechanical System Components 2010 Viking Preferred Service SMR 0005 ...
Page 38: ...Section 6 Structural Components 2010 Viking Preferred Service SMR 0005 ...
Page 42: ...Section 7 Electrical Components 2010 Viking Preferred Service SMR 0005 ...
Page 50: ...Section 8 Control Components 2010 Viking Preferred Service SMR 0005 ...
Page 54: ...Section 9 Wiring 2010 Viking Preferred Service SMR 0005 ...
Page 57: ...52 J110 J111 J112 J2 J1 J4 J7 J3 9 3 Main Power Board 2010 Viking Preferred Service SMR 0005 ...
Page 58: ...9 4 User Interface 53 2010 Viking Preferred Service SMR 0005 ...
Page 59: ...Section 10 Reference Charts 2010 Viking Preferred Service SMR 0005 ...
Page 64: ...Section 11 Trouble Shooting Guide 2010 Viking Preferred Service SMR 0005 ...
Page 68: ...Section 12 Reference Photos 2010 Viking Preferred Service SMR 0005 ...
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