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Ultra-Aire SD12, Installation Instructions Manual

The Ultra-Aire SD12 is a high-quality dehumidifier designed to improve indoor air quality. To ensure hassle-free installation, we provide a detailed Installation Instructions Manual. This comprehensive manual is available for free download at 88.208.23.73:8080, allowing you to easily set up and optimize your SD12 unit.

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Ultra-Aire SD12 Installation Instructions

www.Ultra-Aire.com | (800) 533-7533

www.Ultra-Aire.com | (800) 533-7533

Ultra-Aire SD12 Installation Instructions

Safety Instructions ...................................................................... 3
Specifications .............................................................................. 4
Optional Accessories ................................................................... 5
Dehumidifier Set Up .................................................................... 6
Condensing Unit Set Up ............................................................... 7
Attaching Duct Collars ................................................................. 8
Dehumidifier Electrical Requirements ......................................... 9
Condensing Unit Electrical Requirements ................................. 10
Condensing Unit & Dehumidifier Wiring .................................... 11
Line Set Installation ................................................................... 12

Brazing the Line Set .......................................................................14-15
Leak Test Line Set and Dehumidifier ................................................... 16
Evacuating the Line Set and the Dehumidifier .................................... 17
Charging the System ........................................................................... 18

Drain Installation ....................................................................... 19
Ducting to HVAC Systems .......................................................... 20  

Recommended HVAC System Installations ........................................ 21
Alternative HVAC System Installations ................................................ 22
Recommended Multiple HVAC Systems Installation .......................... 23
No Existing Ductwork Installation ....................................................... 24

Fresh Air Ventilation .................................................................. 25

Determine Ventilation Requirements ................................................... 26

Controls ..................................................................................... 27

Wiring Controls .................................................................................... 28

Air Filtration ............................................................................... 29

MERV Rating Chart ............................................................................. 30

Service ....................................................................................... 31

Troubleshooting ................................................................................... 32

Warranty .................................................................................... 35

TABLE OF CONTENTS

Ultra-Aire is committed to manufacturing quality products. To maintain  

our standards, product specifications may change without notice. 

4201 Lien Road, Madison, WI 53704 

(800) 533-7533 

www.Thermastor.com  |  www.Ultra-Aire.com

© 2015 Therma-Stor LLC

Summary of Contents for SD12

Page 1: ...mate in comfort health and property protection through Dehumidification Sensible Cooling Fresh Air Ventilation Optional Air Filtration The two piece design allows the sensible heat load generated from dehumidifying the house to be released in the outside condensing unit thus eliminating additional cooling and reducing air conditioner run time Installation Instructions INSTALLATION BY A HVAC PROFES...

Page 2: ... Charging the System 18 Drain Installation 19 Ducting to HVAC Systems 20 Recommended HVAC System Installations 21 Alternative HVAC System Installations 22 Recommended Multiple HVAC Systems Installation 23 No Existing Ductwork Installation 24 Fresh Air Ventilation 25 Determine Ventilation Requirements 26 Controls 27 Wiring Controls 28 Air Filtration 29 MERV Rating Chart 30 Service 31 Troubleshootin...

Page 3: ...R 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...

Page 4: ...ptional Air Filters MERV 11 Standard Pleat Efficiency 65 ASHRAE Dust Spot Size 16 x 20 x 2 MERV 14 Embossed Pleat will need filter housing Efficiency 95 ASHRAE Dust Spot Size 20 x 24 x 4 Power Cord 9 115 VAC Ground Internal Insulated Cabinet Yes Drain Connection 3 4 Threaded Female NPT Line Set Requirements 50 Feet maximum Liquid Line 1 4 Gas Line 3 8 Dimensions Unit With Collars Unit Without Coll...

Page 5: ...4 MERV 11 Filters 12 Pack 4025287 MERV 14 Filter Housing 4024370 MERV 14 Filter 20 x 24 x 4 4029087 MERV 14 Filters 3 Pack 4028614 Pump Kit 4036685 Hang Kit 4023672 6 Motorized Damper 4026859 6 Flex Duct 25 4020128 6 Flex Insulated Duct 25 4020656 6 Inlet Hood 4024375 10 Gravity Damper 4026969 10 Flex Duct 25 4022126 10 Flex Insulated Duct 25 4028399 10 Oval to Round Adapter Items Included in Box ...

Page 6: ...as the necessary return and supply ductwork to the unit Allow sufficient clearance for filter removal and to prevent airflow obstruction Electrical service access will require the removal of a side panel Allow sufficient clearance on a side of the unit Locate the dehumidifier in an area where the cord s length 9 easily reaches a 115 VAC electrical outlet with a minimum of a 15 Amp circuit capacity...

Page 7: ... into a dedicated circuit and Ground Fault Circuit Interrupter GFCI protected outlet DO NOT use the condensing unit as a bench or table DO NOT place the condensing unit where the sound and vibration caused by running the unit will a cause a nuisance Vibration dampening material may be installed between the condensing unit base and the mounting pad if required Location Considerations Allow sufficie...

Page 8: ...duct to the unit using the screws provided The 6 duct should be capped if fresh air is not desired If setting up the unit to provide fresh air ventilation see page 17 Return Air Inlet Attach 10 diameter duct collar to the unit with the screws provided Supply Air Outlet Adhere seal onto the back of the oval duct and mount the duct to the front of the dehumidifier using the screws provided Collars a...

Page 9: ...recautions 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 Ultra Aire SD12 and the control are labeled to prevent confusion Be sure to consult the electrical schematic in the CONTROLS Section page 28 of this manual or inside th...

Page 10: ...le code s Panel top Strain Relief Block Power Supply Unit wire harness 1 Take off the panel top by removing the one screw that secures it to the condensing unit 2 Loosen the two strain relief block screws 3 Insert the power and control wires through the strain relief block 4 Connect the power supply wires and control wires to the corresponding terminals on the terminal board 5 Ground the condensin...

Page 11: ...a Aire SD12 Installation Instructions CONDENSING UNIT DEHUMIDIFIER WIRING 24VAC SIGNAL FROM DEHU COMPRESSOR COND RELAY COND RELAY COIL 115VAC LINE NEUTRAL BLK RED BRN WHT BLK BRN RED WHT RUN CAP WHT BLK BLK 1 N L L N RUN CAP BLOWER S C R 1 3 ...

Page 12: ... 1 4 liquid line 3 8 gas line suitable for use with R410A refrigerant to connect the indoor unit to the outdoor unit The maximum allowable length of the line set is 50 feet The installer must braze the lines to the dehumidifier and the condensing unit The gas suction line must be insulated to prevent the formation of condensation on the outside of the line Line Set Isolation The followin REFRIGERA...

Page 13: ... on the gas line Flush the lines with an inert gas before and or during brazing to prevent oxidation inside the lines Release the inert gas holding charge and remove the plugs in the dehumidifier lines before brazing Do not overheat the lines connected to the dehumidifier or the condensing unit when brazing Be aware of the relative location of the dehumidifier Indoor unit and condensing unit Outdo...

Page 14: ...INST BURNS WASH HANDS WITH SOAP AND WATER AFTER HANDLING BRAZING ALLOYS AND FLUX TO PREVENT STRIPPING OF THE VARIOUS CAPS USED THE APPROPRIATELY SIZED WRENCH SHOULD BE USED AND FITTED SNUGLY OVER THE CAP BEFORE TIGHTENING ALLOW BRAZE JOINT TO COOL BEFORE REMOVING THE WET RAG FROM THE SERVICE VALVE TEMPERATURES ABOVE 2500 CAN DAMAGE VALVE SEALS USE SILVER ALLOY BRAZING RODS WITH 5 MINIMUM SILVER AL...

Page 15: ...e line set lines 2 Fit the line stubs with flare fittings included with the condensing unit onto the line set if necessary 3 Swage the liquid and gas lines if necessary to fit onto the line stubs with the flare fittings 4 Remove service valve caps and cores 5 Purge the lines with dry nitrogen Inert gas to prevent oxidation during brazing 6 Braze the line set lines to the line stubs 7 Apply a light...

Page 16: ... hose to the service port on the gas line will protect the manifold gauge set from high pres sure damage during leak testing Cap liquid line service port 2 Make sure all of the valves on the manifold gauge set are closed Connect a cylinder of HFC 410A refrigerant to the center port of the manifold gauge set 3 Position the HFC410A refrigerant cylinder to deliver vapor only Open the valve on the HFC...

Page 17: ...ssure indicates a leak in the sys tem If this occurs check the manifold gauge set hoses tee and valve core removal tools for leaks If no leak is found repeat the leak test procedure on Page 15 10 Evacuate the line set and dehumidifier for a minimum of 15 minutes and check that the micron gauge reads below 500 microns 11 Close the low and high pressure sides of the manifold gauge set and stop the v...

Page 18: ...ine stub valve core removal tool 6 Open the low pressure side of the manifold gauge set and weigh in the amount of HFC 410A calculated in step 1 7 Close the valve on the HFC 410A cylinder and the low pressure side of the manifold gauge set 8 Close the valve on the gas line stub valve core removal tool 9 Remove the high and low pressure sides of the manifold gauge set from the valve core removal to...

Page 19: ...e 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 field wire that connects to the common lead from the Ultra Aire SD12 to the control pan...

Page 20: ...ict airflow A length of 10 or more of insulated flex duct or any other vibration isolating material on the outlet of the Ultra Aire SD12 will reduce air noise from the blower Effective dehumidification 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...

Page 21: ...supply of the existing HVAC system with a backdraft damper If the existing system has multiple returns instead of installing a dedicated return to the Ultra Aire SD12 it is possible to select one to disconnect from the existing HVAC system and use it for the dedicated Ultra Aire SD12 return Select a return from a central location in the house that is always open to the rest of the structure DO NOT...

Page 22: ...ply air from the Ultra Aire SD12 in the return of the HVAC system requires the HVAC fan to run when the Ultra Aire SD12 is operating HVAC Return to HVAC Supply Outdoor Condensing Unit A C Return to A C Supply Air Handler HVAC Supply HVAC Return Backdraft Damper Optional Check Damper no HVAC fan needed Fresh Air Intake Optional Motorized Damper Ultra Aire Supply Check Damper should be in place betw...

Page 23: ...ion HVAC systems should be in close proximity for optimal air flow For multiple systems contact Technical Support at 800 533 7533 DUCTING TO HVAC SYSTEMS Recommended Multiple HVAC Systems Installation First Air Handler HVAC Return HVAC Supply Second Air Handler HVAC Supply Dedicated Ultra Aire 155 Return to Multi systems HVAC Return Fresh Air Intake Optional Motorized Damper Indoor Air Return Ultr...

Page 24: ... inside the structure to properly circulate Proper air distribution is important to ensure even humidity control and heat distribution throughout the structure Use insulated duct work on the supply duct work of the dehumidifier A 6 diameter duct is recommended for branches to bedrooms An 8 diameter duct is recommended for branches to larger areas DO NOT locate the return in a bathroom or kitchen D...

Page 25: ...ized damper is used a digital control is required It may be necessary to use 8 duct work if additional fresh 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 Ultra Aire SD12 capable of year round drying FRESH AIR VENTILATION Hot Climate 6 Fresh Air Inlet Optional 10 Return Air Inlet 10 Supply Air Outlet A B C Cold...

Page 26: ...d CFM ____________ FRESH AIR VENTILATION Determine Ventilation Requirements 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 Option 2 Calculating Airflow Requirement Using Table 4 1 from ASHRAE 62 2 2016 Record the required CFM ____________ ...

Page 27: ...ions if household temperature reaches the cut out setpoint Dry Out Cycle Timer Automatic fan cycling to ensure dry and clean coils Auto Reboot Resumes operation with prior settings in the event of power failure Ultra Aire DEH 3000 Digital Control See DEH 3000 manual for detailed instructions Circuit Breaker To prevent damage to the 24 volt control transformer the Ultra Aire SD12 comes with a reset...

Page 28: ...ntrol DMPR 24VAC Power Transformer Neutral Side Spare Terminal Open Terminal Block Control Operation 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 or COM and 24V terminals Between the COM DMPR lead and the 24V TERMINAL is a 40VA transformer This low voltage pow...

Page 29: ...ter Step 1 The filter 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 filter door will swing open to gain access to the filter Step 2 Remove the filter by gently pulling it straight out of the unit Insert new filter by gently pushing it straight into the unit Make sure the AIR FLOW arrow on the filter is pointing in...

Page 30: ... Bag Filter Nonsupported Legionella microfine fiberglass or 11 60 65 95 Humidifier Dust Better Commercial Buildings synthetic media 12 36 in deep 6 12 pockets Lead Dust 10 50 55 95 Milled Flour Box Filter Rigid Style Cartridge Filters 6 to 12 deep may use lofted or paper media Auto Emissions Hospital Laboratories 9 40 45 90 Welding Fumes 8 30 35 90 3 0 10 0 pm Particle Size Commercial Buildings Pl...

Page 31: ... must be accurately weighed in If any of the old charge is left in the system it must be recovered before weighing in the new charge Refer to the unit nameplate for the correct charge weight and refrigerant type SERVICE Service Parts Item Part No Description 1 4031086 05 Evaporator Coil 2 4029510 Filter Drier 3 4029508 Low Pressure Switch 4 4026657 Impeller 5 4035235 07 Fan Relay SPDT 24V 15A 6 40...

Page 32: ... wires together the fan only should run Disconnect when complete 8 Jumper a wire from the 24V and DEHU terminal fan and compressor should run Disconnect when complete 9 If this test works then the field control wiring is ok 10 If the problem persists then the control is most likely faulty WARNING ELECTRICAL SHOCK HAZARD ELECTRICAL POWER MUST BE PRESENT TO PERFORM SOME TESTS THESE TESTS SHOULD BE P...

Page 33: ...below and or in area of low relative humidity the dehumidifier will produce little to no water 7 Collecting the water removed in a 24 hour period will give a measurement of performance WARNING ELECTRICAL SHOCK HAZARD ELECTRICAL POWER MUST BE PRESENT TO PERFORM SOME TESTS THESE TESTS SHOULD BE PERFORMED BY A QUALIFIED SERVICE PERSON Fan is not running Dehumidification or fan is being called for 1 L...

Page 34: ...34 Ultra Aire SD12 Installation Instructions www Ultra Aire com 800 533 7533 ...

Page 35: ...costs related to changes to a Product or Component that may be required by any codes laws or regulations that may become effective after initial purchase of the Product by Customer Customer Responsibilities As a further condition to obtaining warranty coverage hereunder the Customer must send a valid warranty claim to Therma Stor such that Therma Stor receives such claim prior to the end of the ap...

Page 36: ... 800 533 7533 www Ultra Aire com ...

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