Ultra-Aire 120H Installation & Operation Instructions Download Page 1

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TS-1126 2/20 Rev B

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Installation & Operation Instructions

ULTRA AIRE 98H / 120H

Ultra-Aire.com | 800.533.7533

The

Ultra Aire 98H and 120H

are ventilating

dehumidifiers that integrate into the heating and
cooling system to provide the ultimate in comfort,
health and property protection through:

Dehumidification

Fresh Air Ventilation (Optional)

Air Filtration

Summary of Contents for 120H

Page 1: ...LTRA AIRE 98H 120H Ultra Aire com 800 533 7533 The Ultra Aire 98H and 120H are ventilating dehumidifiers that integrate into the heating and cooling system to provide the ultimate in comfort health and property protection through Dehumidification Fresh Air Ventilation Optional Air Filtration ...

Page 2: ...h Air Ventilation 10 Determine Ventilation Requirements 11 Controls 12 Air Filtration 14 MERV Rating Chart 15 Service 16 Warranty 19 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 2019 Therma Stor LLC ...

Page 3: ... HANDLING SHEET METAL IMPROPER INSTALLATION MAY CAUSE PROPERTY DAMAGE OR INJURY INSTALLATION SERVICE AND MAINTENANCE MUST BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN 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 QUALIF...

Page 4: ... VAC electrical outlet with a minimum of a 15 Amp circuit capacity Locate the dehumidifier in an area where field wiring the control low voltage to the unit will be possible It is recommended that a backdraft damper be used in the discharge duct of the Ultra Aire Dehumidifier especially when connecting to the supply ducting system The backdraft damper prevents supply air from counter flowing throu...

Page 5: ...tlet A B C A B C Air Flow Rear View Front View A B Fresh Air Ventilation Duct Fresh air ventilation is optional A 6 diameter duct is attached to the unit The 6 duct should be capped if fresh air is not desired If setting up the unit to provide fresh air ventilation see page 10 Return Air Inlet A 10 diameter duct collar is attached to the unit Supply Air Outlet The back panel of the dehumidifier ca...

Page 6: ...ALLOW THE 24V TERMINAL TO CONTACT THE COM DMPR TERMINALS ON THE ULTRA AIRE DEHUMIDIFIER OR DAMAGE TO THE TRANSFORMER WILL RESULT Electrical Precautions 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 Dehumidifier and...

Page 7: ...nsate 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 Dehumidifier to the control panel...

Page 8: ...all Ultra Aire Dehumidifier duct connections is recommended to reduce 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 round or equivalent rectangular duct for longer lengths Grills or diffusers on the duct ends must not excessively restrict airflow Effectiv...

Page 9: ...stem with a backdraft damper If the existing system has multiple returns instead of installing a dedicated return to the Ultra Aire Dehumidifier it is possible to select one to disconnect from the existing HVAC system and use it for the dedicated Ultra Aire Dehumidifier 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 ...

Page 10: ...r 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 Dehumidifier capable of year round drying FRESH AIR VENTILATION Outdoor Air 90 F 65 RH Indoor Air 70 F 50 RH Mixed Air Mixed Air 75 F 75 F 65 RH 65 RH Mixed...

Page 11: ...5 91 5 CFM Record the required 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 Floor Area ft2 500 501 1000 1001 1500 1501 2000 2001 2500 2501 3000 3001 3500 1 30 45 6...

Page 12: ...MINAL FROM THE ULTRA AIRE DEHUMIDIFIER TO CONTACT THE COM TERMINAL ON THE ULTRA AIRE DEHUMIDIFIER OR DAMAGE TO THE TRANSFORMERS WILL RESULT Circuit Breaker To prevent damage to the 24 volt control transformer the Ultra Aire Dehumidifier comes with a resettable circuit breaker Check wiring for any electrical short and repair before resetting breaker Resetting the circuit breaker without correcting ...

Page 13: ...s Power HVAC Accessory Connect the accessory to the DMPR OR COM and 24V terminals 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 dehumidifier COM 24VAC Power Transformer Neutral Side FAN Fan Control 24V Transfo...

Page 14: ...n 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 into the unit Step 3 Insert filter door into tabs and swing door closed to lock the latch into place Filter Fresh Air Intake Optional Return Side View Top View Side View Magnetic Strip nal Fresh ake eturn Suppl...

Page 15: ...e lofted or paper media 12 70 75 95 1 0 3 0 pm Particle Size Superior Residential 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...

Page 16: ...ould run Disconnect the terminals 8 Connect the 24V and DEHU terminals together fan and compressor should run Disconnect the terminals 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 WARNING ELECTRICAL SHOCK HAZARD ELECTRICAL POWER MUST BE PRESENT TO PERFORM SOME TESTS THESE TESTS SHOULD BE PERFORMED BY A QUALIFIED ...

Page 17: ...or 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 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 cal...

Page 18: ...ate for the correct charge weight and refrigerant type Refrigerant Charging SERVICE Symptom Possible Reason Troubleshooting Procedure CAUTION CAUTION TROUBLESHOOTING SHOULD BE PERFORMED BY A QUALIFIED HVAC TECHNICIAN Troubleshooting Continued 1 Verify power to the unit at power outlet 2 Look for short in control wiring 3 Check wire connections at control and unit 4 Reset circuit breaker button on ...

Page 19: ...ny 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...

Page 20: ... 800 533 7533 www Ultra Aire com ...

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