Therma-Stor 4025081 Installer'S & Owner'S Manual Download Page 5

(RH) is reduced to the humidity control dial setting. The Santa 
Fe HC unit (and refrigerant based dehumidifiers in general) will 
reduce a warm space’s RH to a lower level than that of a cool 
space. Therefore there is no benefit to set the humidity control to 
excessively low levels in cool rooms. Doing so will result in long 
periods of ineffective dehumidifier run time.

Quality humidity meters are available from the factory and are 
recommended to accurately monitor humidity levels. Refer to the 
options and accessories table in this document.

5.2 Blower (Fan) Switch

Turning the blower switch to 

“FAN ON” 

will cause the unit’s 

internal blower to run continuously, whether the unit is 
dehumidifying or not. This function is desirable if the unit is used 
for air circulation.

Turning the blower switch to 

“FAN AUTO”

 will cause the unit’s 

internal blower to run only while the unit is dehumidifying.

6. Maintenance

WARNING! 

NOTE: Do not operate the unit without 

the filter or with a less effective filter. The heat 

exchange coils inside the unit could become 

clogged and require disassembly to clean.

6.1 Air Filter

The Santa Fe HC ships with a standard MERV 11 65% efficient 
pleated fabric filter. This should be checked every six months. 
Operating the unit with a dirty filter will reduce dehumidifier 
capacity and efficiency and may cause the compressor to cycle on 
and off unnecessarily. 

The pleated fabric filter can generally be vacuumed clean several 
times before needing replacement. Replacement filters can be 
ordered from the factory. To order a replacement filter, refer to the 
options and accessories table in this document.

6.2 Blower Oiling

The blower motor has been lubricated at the factory for many years 
of normal operation.

7. Service

WARNING:

 Servicing the Santa Fe HC with its 

high pressure refrigerant system and high voltage 
circuitry presents a health hazard which could 
result in death, serious bodily injury, and/or 
property damage. Only qualified service people 

should service this unit.

7.1 Technical Description

The Santa Fe HC uses a refrigeration system similar to an air 
conditioner’s to remove heat and moisture from incoming air, 
and add heat to the air that is discharged. Hot, high pressure 
refrigerant gas is routed from the compressor to the condenser 
coil. The refrigerant is cooled and condensed by giving up its 
heat to the air that is about to be discharged from the unit. The 
refrigerant liquid then passes through a filter/drier and capillary 
tubing which cause the refrigerant pressure and temperature to 
drop. It next enters the evaporator coil where it absorbs heat from 
the incoming air and evaporates.

The evaporator operates in a flooded condition, which means that 
all the evaporator tubes contain liquid refrigerant during normal 
operation. A flooded evaporator should maintain constant pressure 
and temperature across the entire coil, from inlet to outlet. The 
mixture of gas and liquid refrigerant enter the accumulator 
after leaving the evaporator coil. The accumulator prevents any 
liquid refrigerant from reaching the compressor. The compressor 
evacuates the cool refrigerant gas from the accumulator and 
compresses it to a high pressure and temperature gas to repeat 
the process.

SANTA FE HC OWNER’S AND INSTALLER’S MANUAL

5

Santa Fe HC Installer’s & Owner’s Manual

Santa Fe HC refrigeration system

Summary of Contents for 4025081

Page 1: ...1 08 For small usage P O Box 8680 Madison WI 53708 TOLL FREE 1 800 533 7533 www thermastor com sales thermastor com Free standing Moisture Control for Large Areas INSTALLER S OWNER S MANUAL HVAC INST...

Page 2: ...80 F 60 RH Operating Temp 56 F min 100 F max Air Flow 323 CFM without external ducting 307 CFM 20 WG external static 285 CFM 40 WG external static Refrigerant Charge 1 lb 12 oz R22 Duct Connections Ro...

Page 3: ...air flow path between the two rooms e g high door undercut louvered door or wall grill This eliminates the need to remote mount the humidity control WARNING Before installing the dehumidifier in the...

Page 4: ...Route the drain hose through the trap as shown below in Figure 6 Position the trap on the hose approximately 12 away from the unit 4 Ducting 4 1 Optional Ducting Kit 10 collars may be attached to acc...

Page 5: ...to the options and accessories table in this document 6 2 Blower Oiling The blower motor has been lubricated at the factory for many years of normal operation 7 Service WARNING Servicing the Santa Fe...

Page 6: ...charge 3 Dirty air filter or air flow restricted 7 3 Defrost Thermostat The defrost thermostat is attached to the refrigerant suction tube between the accumulator and compressor It will automatically...

Page 7: ...SANTA FE HC OWNER S AND INSTALLER S MANUAL 7 Santa Fe HC Installer s Owner s Manual 10 Wiring Diagram...

Page 8: ...de panel of the dehumidifier by removing 9 hex screws Remove four screws on back of unit to expose electbox 4 Remove the 4 screws securing the wiring box to the inside of the blower end of the dehumid...

Page 9: ...shown STEP 2 Pre drilled mounting holes are located near the bottom and on the same side of the unit as the drain hose STEP 5 Example of hose cut at a 45 angle The angle prevents the hose from sealin...

Page 10: ...applies to residential applications and does not cover any defect malfunction etc resulting from misuse abuse lack of normal care corrosion freezing tampering modification unauthorized or improper re...

Page 11: ...uced or transmitted in any form or by any means electronic or mechanical for any purpose without the express written permission of Therma Stor LLC 2008 Therma Stor LLC All rights reserved PO Box 8680...

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