Therma-Stor Products Group Santa-Fe Rx Free-Standing Dehumidification User Manual
Rx
Rx
INSTALLER’S & OWNER’S MANUAL
HVAC INSTALLER: PLEASE LEAVE MANUAL FOR HOMEOWNER
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Free-standing dehumidification
for your home.
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Includes installation, operating
and safety instructions, warranty
information and all ancillary products.
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Read and save these instructions.
P.O. Box 8680 Madison, WI 53708 • TOLL-FREE 1-800-533-7533 • www.thermastor.com • sales@thermastor.com
© 2006 Therma-Stor LLC • Manual P/N TS- 235 8/07
TABLE OF CONTENTS
Table of Contents
1. Specifications ..........................................................................2
2. Installation .............................................................................. 2
2.1 Location .............................................................................. 2
2.2 Electrical Requirements ..................................................... 3
2.3 Condensate Removal ......................................................... 2
2.4 Optional Reservoir Container .............................................. 3
2.5 Safety Overflow Switch ...................................................... 3
3. Operation .................................................................................3
3.1 Top Removal ...................................................................... 3
3.2 Humidity Control Adjustment .............................................. 3
3.3 Power Switch ...................................................................... 3
4. Maintenance ........................................................................... 3
4.1 Air Filter ............................................................................. 3
4.1A Filter Options ................................................................. 4
4.1B Optional Filter Test ........................................................ 4
5. Service ................................................................................... 4
5.1 Warranty ............................................................................ 4
5.2 Technical description ......................................................... 4
5.3 Troubleshooting ................................................................. 4
5.4 Refrigerant Charging .......................................................... 5
5.5 Blower Replacement .......................................................... 5
5.6 Compressor/Capacitor Replacement .................................. 5
5.6A Replacing A Burned Out Compressor ...................................... 6
5.6B Replacing a Compressor - Nonburn Out .................................. 6
5.7 Humidity Control ................................................................ 6
5.8 Defrost Thermostat ............................................................ 6
5.9 Condensate Pump .............................................................. 6
5.10 Relay................................................................................ 6
5.11 Low Pressure Control ....................................................... 6
Wiring Diagram ............................................................................7
Service Parts List ........................................................................ 8
Filter Frame Assembly ................................................................ 9
Set-Up Instructions ....................................................................10
Laminate Top Kit ....................................................................... 11
Warranty ....................................................................................12
1. Specifications
Part Number: 4023673
Model: Santa Fe Rx Dehumidifier
Electrical: 110-120 VAC, 6.3 Amps, grounded
Capacity: 86 pints/day @ 80°F, 60% RH
Operating Temp. 65°F min., 100°F max.
Range:
Air Flow: 230 CFM @ 0.0" WG
Refrigerant Charge: 1 lbs., 14 oz. R-22
Unit Size: 20” D x 23” W
37
Weight: 130 lbs
1/
2
” H w/top
2. Installation
2.1 Location
The Santa Fe Rx can be installed in a variety of locations to meet
the owner’s needs as listed below. In all cases, keep the following
cautions in mind:
1. It is designed to be installed INDOORS ONLY.
2. If used near a pool or spa, be certain there is NO chance the
unit could roll into the water or be splashed and that it is
plugged into a GROUND FAULT INTERRUPTER.
3. DO NOT use the Santa Fe as a bench or table.
4. Avoid discharging the air directly at people, especially in pool
areas.
Consider the following points when choosing a location for
your Santa Fe Rx:
1. The Santa Fe Rx is most effective if it is centrally located in the
space to be dehumidified.
2. It is designed to be placed with its back 3” or more from a wall
(the air outlet is located at the lower portion of the back). This
will reduce noise and the likelihood that discharge air will blow
directly at someone.
3. The water removed by the APD will be pumped through the
white 20’ long hose coming from under its base. The hose
(about the diameter of a TV coaxial cable) must be routed to
a drain or outside. It can pump 15’ above the unit and can be
extended (see section 2.3).
4. The top can serve as a light duty table (maximum load: 20 lbs.),
but it must be removed periodically to check the air filter.
Read the installation, operation and maintenance instructions
carefully before installing and using this unit. Proper adherence to
these instructions is essential to obtain maximum benefit from
your Santa Fe Rx Dehumidifier.
2.2 Electrical Requirements
The Santa Fe Rx plugs into a common grounded outlet on a
15 Amp circuit. It draws between 6 and 7 Amps under normal
operating conditions. If used in a wet area (pool, spa room, or
basement prone to flooding), a ground fault interrupter protected
circuit is required.
2.3 Condensate Removal
The Santa Fe Rx is equipped with a condensate pump to remove
the water that is condensed during dehumidification. This allows
the water to be discharged to a distant location, or to be pumped
up to 15’ above the Santa Fe Rx.
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Santa Fe Rx Installer’s & Owner’s Manual
SAFETY PRECAUTIONS
The water is discharged through a 20’ long white hose coming
from the unit bottom. The hose is about the diameter of a TV
coaxial cable and can be routed in much the same way. If a drain
is not convenient, a small hole can be drilled through the floor
or wall to access a drain or outside. The hose can be extended
if needed; it should, however, be extended with a hose of larger
inner diameter (1/4” I.D. or greater) to avoid overloading the
pump. Larger diameter hose is available from the factory or may
be purchased from many hardware stores. If the hose can not be
routed to a drain or outside, a reservoir container with an overflow
switch can be used.
If the hose is routed outside, it must exit the building with a
downward slant. This will allow the water in the hose to drain
from it when the pump shuts off, preventing it from freezing.
Pump failure will cause the unit to stop dehumidifying via a safety
switch.
2.4 Optional Reservoir Container
If the condensate discharge hose cannot be routed to a drain or
outside, it can empty into a conveniently located container. This
container (supplied by the customer) can be any size greater than
1/2 gallon. It can be emptied manually or by a pump (supplied by
the customer).
CAUTION: It is strongly recommended that a safety
overflow switch be used to prevent the container
from overflowing and causing potentially costly
water damage.
2.5 Safety Overflow Switch
A Safety Overflow Switch is available from the factory (see parts
list). It consists of a float switch on a weighted cord with a malefemale piggyback plug. The cord is secured to the container with
the float and weight inside; the weight is separated from the float
and container wall.
3 Operation
3.1 Top Removal
The top of the unit must be removed to access the humidity
control knob, blower switch, and standard air filter. The standard
metal top is removed by pulling it horizontally toward the front
about 3/4”, then lifting it upward (the unit front is opposite from
the side that the air comes out).
3.2 Humidity Control Adjustment
The humidity control knob is located under the removable top (top
must be lifted off to access). Turning the knob clockwise lowers
humidity. Turning it counter clockwise to the stop shuts it off.
The dehumidifier will run continuously until the relative humidity
(RH) is reduced to the humidity control setting. Setting the
humidity control to lower RH levels will NOT increase the unit’s
dehumidification rate, it will simply run longer to reduce the area’s
RH to the setting.
The Santa Fe Rx unit (and refrigerant based dehumidifiers in
general) will reduce a warm space’s RH to a lower level than that
of a cool space. For example, the Santa Fe Rx may reduce an
80°F space to 30% RH. However, if the same space is 65°F, it
may only reduce to a 40% RH. It is therefore pointless to set the
humidity control to excessively low levels in cool rooms. Doing so
will result in long periods of ineffective dehumidifier run time and
will consume electricity needlessly.
A quality humidity meter is supplied upon return of the warranty
registration card; it is recommended to accurately monitor
humidity levels. Additional meters are available for purchase from
the factory.
3.3 Blower Switch
Lifting off the top accesses the blower switch. It is located near
the humidity control dial.
Turning the blower switch to FAN ON will cause the blower to run
continuously, whether the unit is dehumidifying or not. This function
is desirable if the unit is used for air filtering.
4. Maintenance
4.1 Air Filter
The Santa Fe Rx is equipped with a standard MERV 11 65%
Efficient disposable pleated fabric air filter. Optional 95%
efficiency, 99.97% efficiency HEPA grade and activated carbon
filters are available (see Section 4.1A).
The standard filter is located beneath the removable top. The
filter is removed by lifting the front edge up first, then the back.
It should be checked every 6 months. Operating the unit with
a dirty filter will reduce dehumidifier capacity and efficiency.If
dirty, the pleated fabric filter can generally be vacuumed cleaned
several times before needing replacement. Replacement filters
can be ordered from the factory or purchased locally if available.
Its nominal size is 16” x 20” x 2” thick. Its efficiency is 65% per
ASHRAE std. 52.1-1992.
DO NOT operate the unit without the filters or with a less
effective filter. The heat exchange coils inside the unit could
become clogged which would reduce performance and require
disassembly to clean.
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Santa Fe Rx Installer’s & Owner’s Manual
FOR HVAC INSTALLER ONLY
4.1A Filter Options
An optional filter frame is available that attaches to the back of the
machine and adds 6-1/2” to the units’ depth. It allows the choice
of using either 95% efficient, HEPA grade, or activated carbon
filters in addition to the standard filter. These filters are accessible
by removing the 4 screws from the filter frame top cover.
The 95% efficient filters MERV 14 (as rated by ASHRAE 52-76
Dust Spot Test) capture about 95% of all particles greater than
1 micron. Actual filter size is 19.38” wide x 15.38” high x 3.75”
deep. Two filters are stacked to form a 32” high filter bank. These
filters can be tested for replacement using the optional filter test
listed in Section 4.1B.
The HEPA media filter captures 99.97% of all particles 0.3
microns or larger that pass through it. Actual filter size is 19.38”
wide x 30.75” high x 3.75” deep. These filters can be tested for
replacement using the optional filter test listed in Section 4.1B.
Optional Carbon filter/Pleated filter combination: The carbon
filter is actually a blend of activated carbon and potassium
permanganate. This blend removes the vast majority of gaseous
contaminants encountered in most filtering applications. The
activated carbon removes the heavier volatile organics while the
potassium permanganate removes the lower molecular weight
contaminates. The life of this disposable filter depends upon both
the hours used and the contamination level. The filter contains 8.7
pounds of active media (17.4 pounds with two filters).
Another advantage of this blend versus an all carbon filter is that
this one changes color as it loads up with contaminates. It starts
out black, then turns pink, then brown and finally white. It is
best changed when it passes the brown stage and begins to turn
white. It has lost most of its effectiveness at that point. Actual
filter size of the carbon filter is 19.38” wide x 15.38” high x 2.88”
deep. The .88” deep pleated filter is the same nominal size and
is installed downstream of the carbon dust. The two filter combos
are stacked to form a 32” high filter bank.
4.1B Optional Filter Test
The optional 95% efficiency and HEPA filters have long lives
when prefiltered by the standard MERV 11 65% efficient pleated
inlet filter; they can last many years in certain conditions. How
long they last can, however, vary widely depending upon the
following: unit run time, air contamination level and standard inlet
filter cleanliness. Given the expense of the optional filter, it can
be costly to change them prematurely. The following test helps
determine when they should be changed.
Air exiting the bottom rear of the unit enters the filter frame, then
passes through the optional filter and into the room. If the filter
is dirty, air pressure builds up before the filter. To check this
pressure, remove the plastic plug from the filter frame top; you
will feel air coming out of the hole with the unit running. Place
the ping pong ball that came with the filter frame on the hole and
let go (any marked, regulation sized ping pong ball will work). If
the ball does not move or only bounces slightly and does not spin
continuously, the filter is clean enough for continued use. If the
ball floats above the hole and starts to spin and perhaps wobble
within 30 seconds, the filter needs to be changed.
5. Service
CAUTION: Servicing the Santa Fe 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.
5.1 Warranty
A warranty certificate has been enclosed with this unit. Read
it before any repair is initiated. If a warranty repair is required,
call the factory first at 1-800-533-7533 for warranty claim
authorization and technical assistance.
5.2 Technical Description
The Santa Fe RX 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 (see figure 1).
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.
5.3 Troubleshooting
No dehumidification. Neither blower nor compressor run with
AUTO FAN and humidity control turned ON.
1. Unit unplugged or no power to outlet.
2. Humidity control set too high or defective (Sec. 3.1 & 5.7).
3. Loose connection in internal wiring (Fig. 2).
4. Safety float switch in remote reservoir has turned unit off (Sec.
2.5).
No dehumidification. Compressor does not run but blower
runs with AUTO FAN and humidity control turned to ON.
1. Defective compressor run capacitor (Sec. 5.6).
2. Loose connection in compressor circuit (see Fig. 2).
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Santa Fe Rx Installer’s & Owner’s Manual
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