SANTA FE ULTRA70 Alternative HVAC System Instruction Manual
- June 16, 2024
- SANTA-FE
Table of Contents
SANTA FE ULTRA70 Alternative HVAC System
Product Information
Specifications
- Product Name: ULTRA70 Alternative HVAC System
- Installation Options: Multiple
Product Usage Instructions
HVAC Return to HVAC Supply
If you are unable to perform the recommended dedicated Ultra Series Return
to HVAC Supply Installation, you can consider the alternative installation
option of HVAC Return to HVAC Supply.
Follow the steps below:
- Ensure that a Check Damper is in place between the Return and Supply connections of the dehumidifier.
- If the Check Damper is not in place, the HVAC fan must turn on when the dehumidifier is in operation.
- If the system has greater than 0.5 WG (Water Gauge), the ducting must be reconfigured.
- Optional Outdoor Air Intake can be installed.
- Install a Motorized Damper and Ultra Series Return between the HVAC Return and Air Handler.
- Connect the HVAC Supply to the Backdraft Damper Ultra Series Supply.
HVAC Supply to HVAC Supply
CAUTION!
If Check Damper is not in place, the HVAC fan must turn on when the
dehumidifier is in operation. Follow the steps below:
- Connect the Air Handler to the HVAC Supply.
- Install an Optional Check Damper (no HVAC fan needed).
- Connect the Ultra Series Return to the Ultra Series Supply.
- WARNING: Due to pressure resistance, it is not recommended to use the Optional Outdoor Air Intake when installing the dehumidifier supply to supply.
Dedicated Ultra Series Return to HVAC Return
To perform a Dedicated Ultra Series Return to HVAC Return installation, follow
the steps below:
- Create a separate return for the Ultra Series Dehumidifier in a central area of the building.
- Optional Outdoor Air Intake can be installed.
- Install the supply air from the Ultra Series Dehumidifier to the return of the Ultra Series HVAC system.
- The HVAC fan must run when the Ultra Series Dehumidifier is operating.
- Connect the Air Handler to the HVAC Supply.
- Connect the Backdraft Damper Ultra Series Supply to the Ultra Series Return.
HVAC Return to HVAC Return
If you choose to perform an HVAC Return to HVAC Return installation, follow
the steps below:
- If Check Damper is not in place, the HVAC fan must turn on when the dehumidifier is in operation.
- Install an Optional Check Damper (no HVAC fan needed).
- Connect the HVAC Return to the Air Handler.
- Connect the HVAC Supply to the Optional Outdoor Air Intake.
- Install a Motorized Damper and Ultra Series Return between the Ultra Series Return and Ultra Series Supply.
No Existing Ductwork Installation
If you are installing the Ultra Series Dehumidifier in a structure that does
not have a forced-air HVAC system or is not being tied into the system, follow
the steps below:
- Install a single return for the Ultra70 in a central location.
- Install a 6″ insulated duct from outside, teeing into the 8″ return duct of the Ultra Series Dehumidifier to provide outdoor air ventilation (optional).
- Duct the supply of the Ultra Series Dehumidifier to the rooms in the home that have the ductless mini-split heads and as close to the heads as possible.
- 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 other areas.
FAQ
Q: Can I install the dehumidifier without a dedicated return?
A: Yes, you can consider alternative installation options such as HVAC
Return to HVAC Supply or HVAC Supply to HVAC Supply.
However, please note that these options may require additional steps and
considerations.
Q: What should I do if my system has greater than 0.5 WG?
A: If your system has greater than 0.5 WG (Water Gauge), you will need to
reconfigure the ducting for proper installation. It is recommended to consult
a professional for assistance.
Q: Can I use the Optional Outdoor Air Intake during supply to supply
installation?
A: No, it is not recommended to use the Optional Outdoor Air Intake when
installing the dehumidifier supply to supply due to pressure resistance.
Please follow the installation instructions accordingly.
Q: What should I do if I don’t have an existing forced-air HVAC system?
A: If you don’t have an existing forced-air HVAC system, you can still
install the Ultra Series Dehumidifier by following the instructions for No
Existing Ductwork Installation. This installation option will require
additional steps and considerations.
ULTRA70
Alternative HVAC System Installations
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 dehumidifier and placed in a central location.
- For basement and crawl space installations, an optional tee can be installed on the Ultra Series Supply.
HVAC Return to HVAC Supply
Check Damper should be in place between the Return and Supply connections of
the dehumidifier.
If Check Damper is not in place, the HVAC fan must turn on when the
dehumidifier is in operation.
If the system has greater than 0.5” WG the ducting must be reconfigured.
HVAC Supply to HVAC 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.
If Check Damper is not in place, the HVAC fan must turn on when the dehumidifier is in operation.
WARNING
DUE TO PRESSURE RESISTANCE IT IS NOT RECOMMENDED TO USE THE OPTIONAL OUTDOOR
AIR INTAKE WHEN INSTALLING THE DEHUMIDIFIER SUPPLY TO SUPPLY.
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.
Dedicated Ultra Series Return to HVAC Return
Create a separate return for the Ultra Series Dehumidifier in a central area
of the building.
Installing the supply air from the Ultra Series Dehumidifier to the return of
the HVAC system requires the HVAC fan to run when the Ultra Series
Dehumidifier is operating.
HVAC Return to HVAC Return
If Check Damper is not in place, the HVAC fan must turn on when the
dehumidifier is in operation.
No Existing Ductwork Installation
When installing the Ultra Series Dehumidifier in a structure that does not
have a forced-air HVAC system or is not being tied into the system, a single
return for the Ultra70 should be installed in a central location.
Install a 6” insulated duct from outside, teeing into the 8” return duct of
the Ultra Series Dehumidifier to provide outdoor air ventilation (optional).
The supply of the Ultra Series Dehumidifier 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 dehumidifier and placed in a central location.
WARNING!
WHEN INSTALLING THE DEHUMIDIFIER AS PART OF A COMBUSTION TYPE HVAC SYSTEM (GAS, OIL, PROPANE, ETC.), FOLLOW ALL LOCAL AND NATIONAL BUILDING AND SAFETY CODES.
Recommended Closet Installation
Due to space limitations, a closet installation may require additional
considerations. Locate the dehumidifier under or next to the HVAC system as
space allows. A passive vent or louver door is required to allow air to be
pulled in from the living space.
- No inlet duct is required. Air is pulled through the louvers or grille from the living space.
- Control should be placed in a central location or the onboard control can be used for this installation.
- Where inlet space is restricted, the inlet duct collar is optional.
- Where outlet space is restricted, the outlet duct collar is optional or vertical flow through may be preferred.
Central Return to HVAC Supply
Duct the supply of the Ultra Series Dehumidifier to the supply of the existing
HVAC system with a backdraft damper.
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. PLEASE CHECK YOUR LOCAL CODES PRIOR TO INSTALLING.
Alternative Closet Installation
If the Recommended Closet Installation is not possible, there are alternative installation options available.
- No inlet duct is required. Air is pulled through the louvers or grille from the living space.
- Control should be placed in a central location or the onboard control can be used for this installation.
Central Return to HVAC Return
Duct the supply of the Ultra Series Dehumidifier to the return side of the
existing HVAC system.
In a central return system, the HVAC fan must run when the dehumidifier is
running.
No Duct – Central Return to HVAC Return
Attach outlet duct with a vertical flow through so air is not discharged into
wall or other obstruction. The HVAC system will naturally pull dehumidifier
air from the closet and distribute it throughout the structure.
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