Santa Fe ULTRA Series User manual

1
800.533.7533 | Santa-Fe-Products.com Santa Fe ULTRA155/205 Installation & Operation Instructions
Serial Number
Install Date
Sold By
Installation Instructions
Patent: thermastor.com/patents
Santa-Fe-Products.com | 800.533.7533
The  are
ventilating dehumidiers that integrate into the
heating and cooling system to provide the ultimate
in comfort, health and property protection through:
+ Dehumidication
+Optional Outdoor Air Ventilation
+Air Filtration
TS-2019 02/23 Rev A
ULTRA SERIES | ULTRA155/205
* Previously the Ultra Aire 155H/205H.
Español
Versión
La Página
24

2Santa Fe ULTRA155/205 Installation & Operation Instructions Santa-Fe-Products.com | 800.533.7533
REGISTRATIONS
THE SANTA FE ULTRA155/205 CONFORMS TO UNIFIED STANDARD UL
60335-2-40 AND CSA STANDARD C22.2.60335-2-40.
Safety Instructions........................................................................................3
Assembly & Installation ................................................................................4
Dehumidier Set Up ..................................................................................5-6
Attaching Duct Collars..................................................................................7
Electrical Requirements................................................................................8
Drain Installation...........................................................................................9
Ducting to HVAC Systems ..........................................................................10
Recommended HVAC System Installation ...............................11-12
Alternative HVAC System Installation.......................................13-14
Outdoor Air Ventilation ...............................................................................15
Determine Ventilation Requirements..............................................16
Controls .................................................................................................17-18
Air Filtration.................................................................................................19
MERV Rating Chart ..........................................................................20
Service ...................................................................................................21-22
Warranty ......................................................................................................23
Spanish Version ..........................................................................................24
Santa Fe is committed to manufacturing quality products. To maintain
our standards, product specications may change without notice.
4201 Lien Road, Madison, WI 53704
[phone]
Thermastor.com | Santa-Fe-Products.com
© 2019 Therma-Stor LLC
FOR REPAIR & TECH SUPPORT: 1-800-533-7533 (follow prompts)
or CONTACT US AT: [e-mail]
TABLE OF CONTENTS
1

3
800.533.7533 | Santa-Fe-Products.com Santa Fe ULTRA155/205 Installation & Operation Instructions
WARNING!
THIS SYMBOL MEANS IMPORTANT INSTRUCTIONS. FAILURE TO HEED THEM CAN
RESULT IN SERIOUS INJURY OR DEATH.
Read the installation, operation and maintenance instructions carefully before installing and
operating this device. Proper adherence to these instructions is essential to obtain maximum
benet from the Santa Fe Whole House Ventilating Dehumidier.
CAUTION!
THIS SYMBOL MEANS IMPORTANT INSTRUCTIONS. FAILURE TO HEED THEM CAN
RESULT IN INJURY OR MATERIAL PROPERTY DAMAGE.
CAUTION!
READ ALL INSTRUCTIONS BEFORE BEGINNING INSTALLATION.
ALWAYS USE CAUTION AND WEAR CUT RESISTANT GLOVES WHEN HANDLING SHEET METAL.
IMPROPER INSTALLATION MAY CAUSE PROPERTY DAMAGE OR INJURY.
INSTALLATION, SERVICE, AND MAINTENANCE MUST BE PERFORMED BY A QUALIFIED SERVICE
TECHNICIAN.
THE DEHUMIDIFIER IS HEAVY. HANDLE WITH CARE AND FOLLOW INSTALLATION INSTRUCTIONS.
NEVER OPERATE A UNIT WITH A DAMAGED POWER CORD. IF THE POWER CORD IS
DAMAGED, IT MUST BE REPLACED BY THE MANUFACTURER, ITS SERVICE AGENT, OR A SIMILARLY
QUALIFIED PERSON IN ORDER TO AVOID A HAZARD.
THIS APPLIANCE IS NOT INTENDED FOR USE BY PERSONS (INCLUDING CHILDREN) WITH REDUCED
PHYSICAL, SENSORY OR MENTAL CAPABILITIES, OR LACK OF EXPERIENCE
OR KNOWLEDGE, UNLESS THEY HAVE BEEN GIVEN SUPERVISION OR INSTRUCTION
CONCERNING THE USE OF THE APPLIANCE BY A PERSON RESPONSIBLE FOR THEIR
SAFETY. CHILDREN SHOULD BE SUPERVISED TO ENSURE THAT THEY DO NOT PLAY WITH THE
APPLIANCE.
WARNING!
120 VOLTS MAY CAUSE SERIOUS INJURY FROM ELECTRIC SHOCK. DISCONNECT
ELECTRICAL POWER BEFORE STARTING INSTALLATION OR SERVICING, AND LEAVE
POWER DISCONNECTED UNTIL INSTALLATION OR SERVICE IS COMPLETED.
SAFETY INSTRUCTIONS
2

4Santa Fe ULTRA155/205 Installation & Operation Instructions Santa-Fe-Products.com | 800.533.7533

a. Dehumidifier (1)
b. Leveling feet (4)
c. Filter - 16”x20”x2” MERV 13 (1)
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
H
U
M
I
D
N
O
R
M
A
L
D
R
I
E
R
OFFON
BEFORE TURNING ON UNIT:
1. CUT AND REMOVE ZIP TIE
2. PLUG HOLES USING
INCLUDED PLUGS
COM
FAN
24V
DEHU
*
DMPR
COM
FAN
24V
DEHU
*
DMPR
24V AC
COMP FAN
HONEYWELL REMOTE HUMIDISTAT
WIRING DIAGRAM
QUEST DEH 3000R CONTROL
WIRING DIAGRAM
ASSEMBLY & INSTALLATION
3
1. 
2. 
d. 10” Round Duct Collar (1)
e. 10” Oval Duct Collar (1)
f. 6” Round Duct Collar (1)
3. 

5
800.533.7533 | Santa-Fe-Products.com Santa Fe ULTRA155/205 Installation & Operation Instructions
1. 
• The device is designed to be installed indoors in a space that is protected from rain and flooding.
• Install the unit with enough space to access all sides for maintenance and service. The entire shell needs to
be removed in order to do repairs.
• Avoid directing the discharge air at people. The dehumidier should be used in the upright position.
• If used near a water source; be certain there is no chance the unit could fall into the water or get splashed
and that it is plugged into a dedicated circuit and Ground Fault Circuit Interrupter (GFCI) protected outlet.
• DO NOT use the dehumidier as a bench or table.
• DO NOT place the dehumidier directly on structural building members without vibration absorbers or
unwanted noise may result. Place the Santa Fe Ultra155/205 on supports to raise the base of the unit.
• A drain pan with a float switch must be placed under the dehumidier if installed above a living area or above
an area where water leakage could cause damage.
DEHUMIDIFIER SET UP
4

6Santa Fe ULTRA155/205 Installation & Operation Instructions Santa-Fe-Products.com | 800.533.7533
Electrical Service Access
(Either Side)
Filter 9' Power Cord
Top View
Minimum
Clearance
For Filter
(Either Side)
15"
6" Fresh Air Intake (Optional)
10" Return Air Duct
10" Supply Air Duct
A
B
C
32 3/8"
With Collars Installed
26"
Without Collars Installed
B
C
Drain Port
A
Top View
41 1/2"
With Collars Installed
37 3/4"
Without Collars Installed
Drain Port 9' Power CordFilter
Minimum
Clearance
For Filter
(Either Side)
20"
6" Optional Outdoor Air Intake
10" Return Air Duct
A
B
6” Fresh Air
Intake (Optional)
10” Return Air Duct
Electrical Service Access
(Either Side)
A
B
The 10” Supply Air Duct (not pictured) is
below the Outdoor Air Intake and the Return
Air Duct. The same amount of clearance
is needed for the 10” Supply Air Duct.
2. 
• Allow sufcient clearance to handle the unit’s overall dimensions as well as the necessary return and
supply ductwork to the unit.
• Allow sufcient clearance for lter removal and to prevent airflow obstruction.
• Electrical service access will require the removal of the outside shell. Allow sufcient clearance around the
unit.
• Locate the dehumidier in an area where the unit’s 9 ft. cord can easily reach.
• Locate the dehumidier in an area where eld wiring the control (low voltage) to the unit will be possible.
• A back draft damper is required in the supply duct of the Santa Fe Ultra155/205, especially when connecting
to the supply ducting system. The backdraft damper prevents supply air from counter flowing through the
Santa Fe Ultra155/205 when it is not operating. The dehumidier’s location should be chosen to allow
installation of this accessory if necessary.
• The Santa Fe Ultra155/205 may be suspended with the hang kit or a suitable alternative from structural
members, ensuring the assembly supports the dehumidier’s base in its entirety. Do not hang the Santa Fe
Ultra155/205 from its’ cabinet.
• Allow for proper drainage and routing of needed drain pipes.
DEHUMIDIFIER SET UP
4
CAUTION!
REMOVE COMPRESSOR SHIPPING TIE FROM THE UNIT. FAILURE TO REMOVE THE SHIPPING TIE WILL CAUSE
EXCESS VIBRATION TO BE TRANSMITTED TO THE FRAME.
3. 
• The Santa Fe Dehumidier uses a compressor to power the refrigeration
system. To protect the compressor and refrigeration system during
shipping, a plastic tie wrap secures it to the unit’s frame. Remove the tie
wrap by cutting the tie wrap and pulling from the unit as shown. After
removing tie wrap, insert plastic plugs provided into the holes.

7
800.533.7533 | Santa-Fe-Products.com Santa Fe ULTRA155/205 Installation & Operation Instructions



Outdoor air ventilation is optional. Attach 6” diameter duct to the unit using the screws provided. The 6” duct
should be capped if outdoor air is not desired. If setting up the unit to provide outdoor air ventilation, see page
10.
1. Return Air Inlet
Attach 10” diameter duct collar to the unit with the screws provided.
2. 
Adhere seal onto the back of the oval duct and mount the duct to the front of the dehumidier using the screws
provided.
ATTACHING DUCT COLLARS
5
SIDE VIEW
FRONT VIEW
6" Optional Outdoor Air Intake
10" Return Air Inlet
10" Supply Air Outlet
A
B
C
A
B
CCollars and
hardware are
located here.

8Santa Fe ULTRA155/205 Installation & Operation Instructions Santa-Fe-Products.com | 800.533.7533
The Santa Fe Ultra155/205 plug into a common grounded 115 VAC outlet. Locate the dehumidier in an area where
the cord’s length (9’) easily reaches a 115 VAC electrical outlet. The Santa Fe Ultra155 requires a minimum 15 Amp
circuit. The Santa Fe Ultra205 requires a dedicated 20 Amp circuit. If used in an area that may become wet, a GFCI
protected circuit is recommended. Consult local electrical codes for further information.
Santa Fe offers a variety of control devices for use with the Santa Fe Dehumidier. The control is to be located
remotely from the dehumidier and placed in the space to be conditioned. A low voltage (24 Volt) control MUST be
used with the Santa Fe Dehumidier and MUST be connected with low voltage (18-22 gauge) thermostat wire.
CAUTION!
DO NOT ALLOW THE 24V TERMINAL TO CONTACT THE COM/DMPR TERMINALS ON THE
SANTA FE ULTRA155/205 OR DAMAGE TO THE TRANSFORMER WILL RESULT.
1. 
• Do not install the control where it may not accurately sense the relative humidity such as near HVAC
supply registers, near exterior doors, on an outside wall, near a window, or near a water source.
• The screw terminals on the Santa Fe Ultra155/205 and the control are labeled to prevent confusion.
• Be sure to consult the electrical schematic in the CONTROLS Section (page 12) of this manual or
inside the access panel of the Santa Fe Ultra155/205 before making control connections.
WARNING!
THE REMOTE CONTROLS OF THE SANTA FE ULTRA155/205 ARE POWERED BY A LOW VOLTAGE CIRCUIT
(24VAC) AND MUST NEVER CONTACT OR BE CONNECTED TO A HIGH VOLTAGE CIRCUIT.
CAUTION!
SOME OF THE SCREWS TERMINALS ON THE SANTA FE ULTRA155/205 MAY NOT BE USED WITH
CERTAIN CONTROLS AND SHOULD BE LEFT UNCONNECTED.
2. 
ELECTRICAL REQUIREMENTS
6

9
800.533.7533 | Santa-Fe-Products.com Santa Fe ULTRA155/205 Installation & Operation Instructions
The Santa Fe Ultra155/205 generates condensate.
Place a secondary drain pan with a float switch under the dehumidier if it is suspended above a nished area or
in an area where water leakage could cause damage.
A drain trap is required for the dehumidier to run properly (see diagram below). Install a 3/4" threaded male
NPT adapter to the drain pan. Install a drain pipe assembly utilizing 3/4" PVC pipe to transport the condensate
to a drain. Pitch of drain should be 1" per 10'.
An optional condensate pump kit is available for use with the Santa Fe Ultra155/205 and may be installed if lift
is required to dispose of condensate. Condensate is automatically pumped to a remote location when the water
level in the pump’s reservoir rises to close the float switch.
The pump also contains a safety float switch. The white leads from this switch extend from beneath the pump
cover. This switch should be installed in series with the eld wire that connects to the common lead from the
Santa Fe Ultra155/205 to the control panel. If the pump fails, this switch opens the common control circuit and
stops water production before the reservoir overflows. Contact a qualied electrician to install the safety float
switch to the Santa Fe Ultra155/205 dehumidier.

DRAIN INSTALLATION
7
Dehumidiers commonly use a negative air pressure drain pan. This causes air to flow backwards thru the drain
system which can cause water to pool inside the dehumidier and leak. A drain trap prevents this issue by trapping
water in the pipe to stop air from flowing backwards.
Please see the trap diagram below. This assembly can be made with common ¾” PVC pipe ttings. The pipe
measurements and placement of the cap and vent are critical to the function of the trap. Once trap is assembled, be
sure to ll with water.
Drain
Trap
Drain
Port
4035934
Drain Trap
Drain Port
Secondary Drain Pan
Drain
Trap
Drain
Port
4035934
Drain Trap
Drain Port
Secondary Drain Pan
10”
1.5”
VENT HEIGHT MUST
BE BELOW THE LINE

10 Santa Fe ULTRA155/205 Installation & Operation Instructions Santa-Fe-Products.com | 800.533.7533
CAUTION!
DO NOT CONNECT WITH A STATIC PRESSURE GREATER THAN OR EQUAL TO +0.5 WG.

1. 
• All flexible ducting connected to the Santa Fe Ultra155/205 should be UL listed.
• A short piece of flexible ducting on all Santa Fe Ultra155/205 duct connections is recommended to re-
duce noise and vibration transmitted to rigid ductwork in the structure.
• Use a minimum 10" diameter round or equivalent rectangular duct for total duct lengths of up to 25'. Use
a minimum 12" diameter or equivalent for longer lengths.
• Grills or diffusers on the duct ends must not excessively restrict airflow.
• A length of 8" or more of insulated flex duct or any other vibration isolating material on the outlet of the
Santa Fe Ultra155/205 will reduce air noise from the blower.
• Effective dehumidication may require that ducting be branched to isolated, stagnant air flow areas.
When ducting to two or three areas, use 8" or larger diameter branch ducting. When ducting to four or
more areas, use 6" or larger diameter branch ducting. Provisions must be made to provide airflow from
supply locations to the central return location. Proper air distribution is important to ensure even humid-
ity control and heat distribution throughout the structure.
• DO NOT locate the return in a bathroom or a kitchen.
2. 
CAUTION! ALLOW FOR ENOUGH SPACING TO PROPERLY ROUTE YOUR RETURN AND
SUPPLY CONNECTION
a. 


 
*Per Unit.
*Brackets sold separately.
3. 
CAUTION! INTERNAL STOPS LIMIT FEET HEIGHT. DO NOT TIGHTEN FEET BEYOND THE
RESISTANCE PROVIDED BY STOPS.

*NOTE: LEVELING FEET HOLD
BRACKET IN PLACE
DUCTING TO HVAC SYSTEMS
8
*RECOMMEND 6” TO 8” OFF GROUND
SEE MANUAL FOR MORE DETAILS

11
800.533.7533 | Santa-Fe-Products.com Santa Fe ULTRA155/205 Installation & Operation Instructions
4. 
a. 
The recommended installation draws air from a central location through a dedicated return to the
dehumidier and ducts the supply of the dehumidier to the air supply of the HVAC system. Utilize the
optional outdoor air ventilation duct to provide outdoor air.
• Install a dedicated 10" air return for the Santa Fe Ultra155/205 from a central area of the structure.
• Duct the supply of the Santa Fe Ultra155/205 to the supply of the HVAC system with a backdraft
damper.
• If the existing system has multiple returns, instead of installing a dedicated return to the Santa Fe
Ultra155/205, it is possible to select one to disconnect from the existing HVAC system and use it for
the dedicated Santa Fe Ultra155/205 return. Select a return from a central location in the house that
is always open to the rest of the structure. DO NOT use a return from a room where doors are kept
closed.
• DO NOT locate return in a bathroom or kitchen.
• Control should be located remotely from the dehumidier and placed in a central location.

DUCTING TO HVAC SYSTEMS
8
Air Handler
HVAC
Return HVAC Supply
Ultra Series
Supply
Motorized
Damper
Optional Outdoor
Air Intake
Ultra Series Indoor
Air Return
Backdraft
Damper

12 Santa Fe ULTRA155/205 Installation & Operation Instructions Santa-Fe-Products.com | 800.533.7533
DUCTING TO HVAC SYSTEMS
8
Dry Air to
Basemen
t
Air Handler Supply
Ultra Series
IndoorAir Return
Ultra Series Supply
Optional Outdoor
Air Intake
Motorized
Damper
Backdraft
Damper
Optional Duct Tee
& Gravity Damper
 
Install a separate 8" return for the Ultra155/205 in a central area of the structure. Duct the supply of the
dehumidier to the air supply of the HVAC system with a backdraft damper.
 Duct the supply of the Ultra155/205 to a 8" x 8" x 8" tee/damper with a gravity draft damper,
adjusted to 20% open to the basement. CAUTION: Air takes the path of least resistance. If the upper levels
of the living space are not receiving the appropriate amount of dry air, this damper may need to be adjusted.
When the dehumidier is not running, there is a chance that air from the basement or crawlspace will make
its way back through the gravity damper and into the living space. If this is of concern, a power damper is
suggested.

13
800.533.7533 | Santa-Fe-Products.com Santa Fe ULTRA155/205 Installation & Operation Instructions
If the Recommended Dedicated Ultra Series Return to HVAC Supply Installation is not possible, there are several
alternative installation options available.
• DO NOT locate return in a bathroom or kitchen.
• Control should be located remotely from the dehumidier and placed in a central location.
• For basement and crawl space installations, an optional tee can be installed on the Ultra Series Supply.
a. 
Check Damper should be in place
between the Return and Supply
connections of the dehumidier.
If Check Damper is not in place, the
HVAC fan must turn on when the
dehumidier is in operation.
If the system has greater than 0.5” WG
the ducting must be recongured.
Air Handler
HVAC Supply
Optional Check Damper
(no HVAC fan needed)
HVAC Return
Optional Outdoor
Air Intake
Motorized
Damper
Backdraft
Damper
Ultra Series
Supply
5. 
DUCTING TO HVAC SYSTEMS
8
WARNING
DUE TO PRESSURE RESISTANCE IT IS NOT RECOMMENDED TO USE THE OPTIONAL OUTDOOR AIR INTAKE
WHEN INSTALLING THE DEHUMIDIFIER SUPPLY TO SUPPLY.
 
If Check Damper is not in place, the
HVAC fan must turn on when the
dehumidier is in operation.
Air Handler Ultra Series
Return
HVAC Return
Optional Check Damper
(no HVAC fan needed)
Optional Outdoor
Air Intake
Motorized
Damper
Ultra Series
Supply
CAUTION!
TO AVOID THE DEHUMIDIFIER CYCLING IN AND OUT OF DEFROST, IT IS RECOMMENDED THAT THE LEAVING
AIR TEMPERATURE OF THE A/C COIL IS NOT BELOW 55°F. ALSO, THIS INSTALL IS NOT RECOMMENDED FOR
CLIMATES WERE THE HEATING SYSTEM WILL RUN DURING THE SPRING AND FALL TIMES OF THE YEAR, AS
THIS COULD DIMINISH THE WATER REMOVAL CAPABILITY OF THE DEHUMIDIFIER.

14 Santa Fe ULTRA155/205 Installation & Operation Instructions Santa-Fe-Products.com | 800.533.7533
d. 
If Check Damper is not in place, the
HVAC fan must turn on when the
dehumidier is in operation.
Air Handler HVAC
Supply
HVAC Return
Optional Check Damper
(no HVAC fan needed)
Optional Outdoor
Air Intake
Motorized
Damper
Ultra Series
Supply
 
Create a separate return for the Ultra
Series Dehumidier in a central area
of the building.
Installing the supply air from the Ultra
Series Dehumidier to the return of
the HVAC system requires the HVAC
fan to run when the Ultra Series
Dehumidier is operating.
Air Handler
HVAC
Return HVAC Supply
Optional Outdoor
Air Intake
Motorized
Damper
Ultra Series
Supply
Ultra Series
Indoor Air Return
Motorized
Damper
Optional Outdoor
Air Intake
Ultra Series
Indoor Air
Return
Ultra Series
Supply
e. 
When installing the Santa Fe Ultra Series Dehumidier in a structure that does not have a forced air HVAC
system, a single return for the dehumidier should be installed in a central location.
Install an insulated duct from outside to the 6” collar of the Santa Fe Ultra Dehumidier to provide outdoor air
ventilation (optional).
The supply of the Ultra Series Dehumidier should be ducted to the rooms in the home that have the ductless
mini-split heads and as close to the heads as possible. Be sure to utilize multiple rooms to allow air inside the
structure to properly circulate. Proper air distribution is important to ensure even humidity control and heat
distribution throughout the structure.
A 6” diameter duct is recommended for branches to bedrooms. An 8” diameter duct is recommended for
branches to larger areas.
• DO NOT locate return in a bathroom or
kitchen.
• DO NOT locate the supply in rooms
where doors may be closed.
• Control should be located remotely
from the dehumidier and placed in a
central location.
CAUTION!
PLEASE NOTE: RETURN TO RETURN INSTALLS ARE TO BE CONSIDERED LAST RESORT OPTIONS AND
ARE NOT RECOMMENDED. THE DEHUMIDIFIER WILL HEAT THE AC COOLING COILS WHICH DIMINISHES
THE AMOUNT OF WATER THE AC SYSTEM WILL REMOVE WHEN OPERATING. IF THIS INSTALLATION IS
CHOSEN, THE DEHUMIDIFIER MUST ACTIVATE THE HVAC BLOWER AND AC CALLS NEED TO LOCK OUT THE
DEHUMIDIFIER FROM RUNNING. PLEASE CHECK YOUR LOCAL CODES PRIOR TO INSTALLING.
DUCTING TO HVAC SYSTEMS
8

15
800.533.7533 | Santa-Fe-Products.com Santa Fe ULTRA155/205 Installation & Operation Instructions
DUCTING TO HVAC SYSTEMS

Outdoor air may be brought into the structure by connecting an insulated duct from outside the structure to the
6” inlet of the Santa Fe Dehumidier. A ventilation control is needed to program the time and frequency that the
unit introduces outside air. The time and frequency of ventilation should be based on the size and occupancy of
the residence.
• An insulated 6” diameter duct can provide up to 1/3 of the total CFM of the unit depending on static
pressure. The Santa Fe Ultra155 can provide up to 130 CFM of outside air and the Ultra205 can provide
up to 175 at 0.0” WG.
• The outdoor air ventilation duct should be connected to the 6” round collar on the front of the Santa Fe
Dehumidier.
• If a motorized damper is not being used, outdoor air is controlled by the manual damper in the 6” collar
of the Santa Fe Dehumidier.
• Performance of the Santa Fe Dehumidier can be impacted by inside and outside air conditions.
• When a 6” motorized damper is used, a digital control is required.
• It may be necessary to use 8” duct work if additional outdoor air is required.
• In cold climates or at times when the dew point is low, ventilation can be used to dehumidify the
structure, making the Santa Fe Dehumidier capable of year-round drying.
OUTLET DUCT
COLLAR WITH
BACK DRAFT
DAMPER
RETURN AIR
INLET DUCT
COLLAR
FRESH AIR
INLET DUCT
COLLAR
RETURN AIR
INLET DUCT
COLLAR
FRESH AIR
INLET DUCT
COLLAR
AIR FLOW
Air
Flow
Hot Climate
6" Optional Outdoor
Air Intake
10" Return Air Inlet
10" Supply Air Outlet
A
B
C
Outdoor Air
30°F, 65%RH
Indoor Air
70°F, 50%RH
Outlet Air
59°F, 51%RH
Cold Climate
A
B
C
6" Optional Outdoor
Air Intake
10" Return Air Inlet
10" Supply Air Outlet
A
B
C
Mixed AirMixed Air
59°F59°F
51%RH51%RH
Mixed Air
59°F
51%RH
Outdoor Air
90°F, 65%RH
A
Indoor Air
70°F, 50%RH
B
Outlet Air
75°F, 65%RH
C
Outdoor Air
30°F, 65%RH
A
Indoor Air
70°F, 50%RH
B
Outlet Air
59°F, 51%RH
C
Mixed Air
Mixed Air
59°F
59°F
51%RH
51%RH
Mixed Air
59°F
51%RH
Mixed Air
Mixed Air
75°F
75°F
65%RH
65%RH
Mixed Air
75°F
65%RH
1. 
Outside air mixes with return air prior to beginning the dehumidication process. Outside
and inside temperature and relative humidity will impact the combined outlet air conditions.
OUTDOOR AIR VENTILATION
9
Note: Temperature and relative humidity may vary depending on duct distribution scheme.

16 Santa Fe ULTRA155/205 Installation & Operation Instructions Santa-Fe-Products.com | 800.533.7533

ASHRAE Airflow in CFM = [House Area in Sq.Ft. x 0.03] + [(Number of Bedrooms +1) x 7.5]
NOTE: Use ‘Number of Bedrooms + 1’ or ‘Number of Occupants’, whichever is larger.
Example 1: Number of Bedrooms + 1
1800 square foot house with 3 bedrooms, 4 occupants = [1800 X 0.03] + [(3+1) X 7.5] = 84 CFM
Example 2: Number of Occupants
1800 square foot house with 3 bedrooms, 5 occupants = [1800 X 0.03] + [5 X 7.5] = 91.5 CFM
Record the required CFM ____________
1. 
The MINIMUM ventilation requirement is calculated using ASHRAE 62.2-2016. Use one or both of the options below
to determine your ventilation requirement. Follow all local and national building and safety codes.


Record the required CFM ____________ Table 4.1 from ASHRAE 62.2-2019

2)

12345
<500 30 38 45 53 60
 45 56 60 68 75
 60 68 75 83 90
 75 83 90 98 105
 90 98 105 113 120
 105 113 120 128 135
 120 128 135 143 150
 135 143 150 158 165
 150 158 165 173 180
 165 173 180 188 195
OUTDOOR AIR VENTILATION
9

17
800.533.7533 | Santa-Fe-Products.com Santa Fe ULTRA155/205 Installation & Operation Instructions
OUTDOOR AIR VENTILATION
A control must be used with this Santa Fe Ultra Series Dehumidier. Santa Fe offers the DEH3000 proprietary control.
The DEH3000 allows homeowners to monitor and control relative humidity and proper ventilation levels in their home.
This control is also available with a remote sensing option.
NOTE: The DEH3000 is sold separately and can be purchased online or through your local dealer. Other thermostats
are compatible with the Santa Fe Dehumidier.
CAUTION!
DO NOT ALLOW THE 24V TERMINAL FROM THE SANTA FE ULTRA155/205 TO CONTACT THE COM
TERMINAL ON THE SANTA FE ULTRA155/205 OR DAMAGE TO THE TRANSFORMERS WILL RESULT.
a. 
To prevent damage to the 24 volt control transformer, the Santa Fe Ultra155/205 comes with a resettable
circuit breaker. Check wiring for any electrical short and repair before resetting breaker. Resetting the circuit
breaker without correcting the electrical short may result in transformer damage. Be sure to check the
electrical schematic in this manual or inside the access panel of the Santa Fe Dehumidier before making
any control connections. The reset button for the circuit breaker can be found on the back of the unit.
 
The control and the Santa Fe Ultra155/205 are labeled to prevent confusion. Depending on the control, some of
the screw terminals on the Santa Fe Dehumidier may not be used. Be sure to consult the electrical schematic
in this manual or inside the access panel of the Santa Fe Dehumidier before making control connections.
1. 
CONTROLS
10
FRONT VIEW
20 1/4”
21 3/4”
21 3/4”
41 1/2”
37 3/4”
21 3/4” 21 3/4”
BACK VIEW
20 1/4”
SIDE VIEW


Terminal

COM
FAN
24V
DEHU
FLOAT FLOAT

18 Santa Fe ULTRA155/205 Installation & Operation Instructions Santa-Fe-Products.com | 800.533.7533
A low voltage control must be used with the Santa Fe Ultra155/205.
NOTE: 18 gauge wire needed between the Santa Fe Ultra155/205 dehumidier and the external control.
COM 24VAC Power Transformer Neutral Side
FAN Fan Control
24V Transformer High Side
DEHU Dehumidication (Fan and Compressor) Control
Float External low voltage float switch or water sensor
(two terminals) Use normally closed switch
Between the COM lead and the 24V TERMINAL is a 40VA transformer. This low voltage power source powers
the relay coils which control the fan and compressors. This 24VAC transformer can also be used to power
HVAC accessories external to the dehumidier.
Compressor ON/Fan On Make contact between 24V and DEHU terminals
Compressor OFF/Fan On Make contact between 24V and FAN terminals
Power HVAC Accessory Connect the accessory to the DMPR and 24V terminals
CONTROLS
10
2. 

19
800.533.7533 | Santa-Fe-Products.com Santa Fe ULTRA155/205 Installation & Operation Instructions
CONTROLS
The Santa Fe Ultra155/205 is equipped with a MERV-13 (Dimensions: 16” x 20” x 2”) air lter. The lter should be
checked and replaced every three to six months. Operating the unit with a dirty lter will reduce dehumidier capacity
and efciency.
DO NOT operate the unit without the recommended lter. Filter non-compliance voids the product warranty.
1. Changing the Filter
For greatest ltration and efciency of the Santa Fe Ultra155/205, it is recommended the air lter be replaced
every three to six months with a MERV-13 rated lter.
Step 1: The lter door is attached to the cabinet by three hinges. Release the latch from the
cabinet by pulling it towards the front of the unit. The lter door will swing open to gain access to
the lter.
Step 2: Remove the lter by gently pulling straight out of the unit. Insert new lter by gently pushing it
straight into the unit. Make sure the AIR FLOW arrow on the lter is pointing into the unit.
Step 3: Replace lter door
ensuring the opening is
fully covered.
CAUTION!
MAKE SURE UNIT IS OFF BEFORE CHANGING THE FILTER.
AIR FILTRATION
11
Side View
Filter Door
Optional
Outdoor
Air Intake
Return
Slide Latch
Filter Door Closed
Latch
Side View
Optional Outdoor
Air Intake and
Return Air Duct
Supply Air Duct
Filter
Door
Open
Side View
Filter Door
Fresh Air Intake
(Optional)
Return
Slide Latch
Side View
Filter
Return
Filter
Supply
Return
Filter
Supply
To Remove,
pull out straight.
Return
Filter
Supply
Return
Filter
Supply
To Replace,
push in straight.
Front View Front View
Filter
Door
Open
Side View
Filter Door
Fresh Air Intake
(Optional)
Return
Slide Latch
Filter
Door
Closed
Side View

20 Santa Fe ULTRA155/205 Installation & Operation Instructions Santa-Fe-Products.com | 800.533.7533
Standard 52.5
Minimum Efciency
Reporting Value
Dust Spot
Efciency Arrestance Typical Controlled Contaminant
Typical
Applications and
Limitations
Typical Ail Filter/Cleaner Type
20 n/a n/a < 0.30 pm Particle
Size Cleanrooms ≥99.999% eff. On 10-20 pm Particles
19 n/a n/a Virus (unattached) Radioactive
Materials
Particles
18 n/a n/a Carbon Dust Pharmaceutical
Man.
Particulates
17 n/a n/a All Combustion
Smoke
Carcinogenic
Materials ≥99.97% eff. On 30 pm Particles
16 n/a n/a 0.30-1.0 pm
Particle Size General Surgery Bag Filter - Nonsupported
15 >95% n/a All Bacteria Hospital Inpatient
Care
Micro Fine Fiberglass or Synthetic media,
12-36 in. Deep, 6-12 Pockets
14 90-95% >98% Most Tobacco
Smoke Smoking Lounges Box Filter - Rigid Style Cartridge
13 89-90% >98% Proplet Nuceli
(Sneeze)
Superior
Commercial
Buildings
Filters 6 to 12 in. Deep, May Use Lofted or
Paper Media
12 70-75% >95% 1.0-3.0 pm Particle
Size Legionella
Superior
Residential Bag Filter - Nonsupported
11 60-65% >95% Humidier Dust
Lead Dust
Better Commercial
Buildings
Micro Fine Fiberglass or Synthetic media,
12-36 in. Deep, 6-12 Pockets
10 50-55% >95% Milled Flour Box Filter - Rigid Style Cartridge
9 40-45% >90% Welding Fumes Hospital
Laboratories
Filters 6 to 12 in. Deep, May Use Lofted or
Paper Media
8 30-35% >90% 3.0-10.0 pm
Particle Size
Commercial
Buildings
Pleated Filters - Disposable, Extended
Surface Area, Thick with Cotton-Polyester
Blend Media, Cardboard Frame
7 25-30% >90% Mold Spores
Hair Spray Better Residential
Cartridge Filters - Graded Density Viscous
Coated Cube or Pocket Filters, Synthetic
Media
6 <20% 85-90% Fabric Protector
Dusting Aids
Throwaway - Disposable Synthetic Panel
Filter
5<20% 80-85% Cement Dust
Pudding Mix Paint Booth Inlet
4 <20% 75-80% >10.0 pm Particle
Size Pollen Minimal Filtration Throwaway - Disposable Synthetic Panel Filter
3 <20% 70-75% Dust Mites
Standing Dust Residential Washable - Aluminum Mesh
2 <20% 65-70% Spray Paint Dust
1 <20% <65% Textile Fibers
Carpet Fibers Window A/C Units Electrostatic - Self Charging Woven Panel Filter
Table Data Source: United States Environmental Protection Agency
AIR FILTRATION
11
2. MERV Rating Chart