Therma-Stor Products Group HI-E Dry Vehere - Manual (Page 8)

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1. Defrost thermostat loose or defective
2. Low refrigerant charge
3. Dirty air filters or airflow restricted.
7.3 Refrigerant Charging
WARNING: Only qualified service people should service this unit.
The Vehere has a high-pressure refrigerant system and high
voltage circuitry. This could present a hazard which could result
in death, serious bodily injury, and/or property damage. Only
qualified service people should service this unit.
If the refrigerant charge is lost due to service or a leak, a
new charge must be accurately weighed in. If any of the
old charge is left in the system, it must be removed before
weighing in the new charge. Refer to the unit nameplate
for the correct charge weight and refrigerant type. Add the
refrigerant through the low side service port. (See Fig. 11)
7.4 Blower Replacement
The blower has a PSC motor internal thermal overload
protection. If defective, the complete assembly must be
replaced.
1. Unplug the power cord.
2. Remove the cabinet front.
3. If an outlet duct is connected to the unit, remove it.
4. Disconnect the blower leads: white from the
compressor run capacitor, and black connected to the
fan switch.
5. Remove the nuts & bolts holding the blower outlet flange
to the cabinet end and remove the blower.
6. Reassembling with the new blower is the above
procedure reversed.
7.5 Relay
The contacts of the single pole, single throw relay complete
the power circuit to the compressor. The contacts are closed
when power is provided to the relay coil via the control circuit.
The control circuit includes the humidity control, low pressure
control, defrost thermostat and timer.
8 Vehere Accessories
Part No. Item
4025283 Vehere Remote Humidity Sensor/Control
4021799 Filter (2 Filters Required)
4024750 12” x 25’ Flext Duct
Optional Ventilator
4019663
Quiet-Vent Exhaust Ventilator
Figure 11: Low side service port.