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Heat Recovery Ventilator (HRV) may interact with vented combustion equipment
Never install an HRV in a situation where it's normal operation, lack of operation,
or partial failure may result in the back drafting on vented combustion equipment
DO NOT ATTEMPT INSTALLING THIS HRV WITHOUT
ENERGY STAR RATED PRODUCTS: NW85T, NW125T
BY:
Built Better To Last Longer
N
NUWAVE SERIES
Central Heat Recovery Ventilator
Product Specifications
Installation and User Manual
NuWave Series
NW85T - NW125T
APPLICATION WARNING
It is always important to assess how the operation of any
(i.e. gas furnaces, oil furnaces, wood stoves, fireplaces. etc.)
such as water heaters, furnaces and fireplaces.
FIRST READING THIS ENTIRE MANUAL
- NOT FOR OUTSIDE USE -
This product earned the ENERGY STAR
by meeting strict energy efficiency guidelines set by
Natural Resources Canada and the US EPA.
It meets ENERGY STAR requirements
only when used in Canada.
Summeraire Mfg.
Peterborough, Ontario,
Canada, K9J 6X6
W
U
AVE
Residential
and
Models
®
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Summary of Contents for SummerAire NUWAVE Series
- Page 1 ® NUWAVE SERIES Residential Central Heat Recovery Ventilator Product Specifications Installation and User Manual NuWave Series Models NW85T - NW125T APPLICATION WARNING It is always important to assess how the operation of any Heat Recovery Ventilator (HRV) may interact with vented combustion equipment (i.e.
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Page 2: Table Of Contents
Table of Contents Model specifications ... . . 3, 4, 5, 6, 7 Operating Features ....8 Optional Controls . - Page 3 AIR FLOW EXHAUST POWER RECOVERY SENSIBLE MOISTURE °C °F FLOW RATIO (WATTS) EFFICIENCY EFFECTIVENESS TRANSFER 1.01 -0.01 1.01 -0.02 1.03 0.06 1.01 -0.02 1.10 0.02 1.10 0.02 SUMMERAIRE MANUFACTURING TRENT METALS (2012) LIMITED PETERBOROUGH, ONTARIO K9J 6X6 Home Ventilating Institute...
- Page 4 APPARENT TEMPERATURE AIR FLOW EXHAUST POWER RECOVERY SENSIBLE MOISTURE °C °F FLOW RATIO (WATTS) EFFICIENCY EFFECTIVENESS TRANSFER 1.00 0.00 1.00 0.01 1.00 0.01 1.08 0.02 1.09 0.02 SUMMERAIRE MANUFACTURING TRENT METALS (2012) LIMITED PETERBOROUGH, ONTARIO K9J 6X6 Home Ventilating Institute...
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Page 5: Operating Features
HRV LED function indicators Note: a flashing LED is an indication that an external timer or dehumidistat has initiated a high speed ventilation sequence. OpERATiNg FEATuREs Any of the following operating functions may be selected at the push button located at the left hand side of the HRV immediately below the illuminated leds, or at the optional Shepherd Digital control if installed. -
Page 6: Optional Controls
During this cycle ventilation is ON for a period of 20 minutes in low speed. However, should an optional timer be activated, ventilation will turn on to high speed until the timer expires or is turned off. This intermittent cycle of 20 minutes ventilation ON followed by 40 minutes of ventilation OFF repeats automatically until another selection is made. - Page 7 Continue to press the select button until the desired fearture is highlighted. The HRV will then assume the selected mode of operation. Install using 18/2 thermostat wire or telephone wire up to two may be installed per HRV. No electrical box is required. Refer to wiring diagram in this manual.
- Page 8 ECPBT1W Control This 20-Minute Touch Pad MUST be connected to the PBT & COM terminals on the HRV exterior. Install using 18/2-thermostat wire or telephone wire. No electrical box is required. Maximum number of ECPBT controls per HRV is six (6). Maximum cumulative lead length is 2000 lineal feet.
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Page 9: Selecting A Location
Model NW85T/NW125T Illustrated Warm Exhaust Warm Supply Cold Supply Cold Exhaust 1. Selecting a location Typically the HRV is located in the mechanical room with close proximity to an outside wall. Other installation locations are acceptable provided that the ambient air temperature does not fall below freezing. - Page 10 2. Mounting the HRV Included with the HRV are four (4) laminated rubber hanging straps. These are to be secured at each of the four corners of the HRV using the screws provided. The other ends of the straps should be secured to the floor joists using large head screws. To ensure proper condensate flow, HRV must be installed level in both directions.
- Page 11 OPTIONAL CONCENTRIC VENT 25-3/16” 20-34” 4-1/2” 1” 16” Step 1 Cut a 6” diameter hole in the exterior wall of the building. The top of the hole should be a minimum of 1” from the bottom of the floor above (if applicable). Step 2 Install the round foam gasket (provided) around the 6”...
- Page 12 Seal the backplate with exterior weatherproof sealant and screw into place Step 3 Insert the 6” galvanized duct through the hole cut in the exterior wall. Slide in until the back plate is flush with the exterior wall. Level the backplate and drill 4 holes in the exterior wall.
- Page 13 Cut to length as required Securing screw Step 6 Measure from the interior wall to the duct Y transition. Line up the 2 halves of the duct insulator to fit together and using a sharp knife, cut both halves of the duct insulator to the measured distance.
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Page 14: Installation Clearances
installationClearances • Minimuim 6’ (2m) away from dryer vents, furnace exhaust (medium or high efficiency furnaces), driveways, oil fill pipes, gas meters, or garbage containers • At least 18” (457 mm) above the ground, or above the depth of expected snow accumulation. - Page 15 Weather hoods should be installed: Separate air intake and exhaust outlet openings, when located on the same wall or roof, shall be installed so as to avoid contamination of the ventilation air by the exhaust air. Intake openings shall be located so as to avoid contamination of the ventilation air from other local sources such as automobile exhausts and exhaust from adjacent buildings.
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Page 16: Installation Methods
Stale Air 5. installation Methods Exhaust Direct (Simplified) Installation The Direct (Simplified) Installation method Minimum 36" requires that the forced air system circulation fan be operated when the HRV is in use. Fresh Air Supply Please refer to fig. I. safety Warning Some Building Code and Combustion Appliance Installation Codes do not allow... - Page 17 Leaving a gap in the ventilation supply duct in place of the breather ‘T’ is acceptable. In this installation, a grill is placed in the furnace return air duct and the HRV/ERV supply duct is pointed at this grill at a minimum distance of 100mm (4”) but not greater than 300mm (12”).
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Page 18: Fresh Air Supply Ducting
Stale Air Exhaust indirect partially Dedicated installation This method of installation permits localized Minimum 36" exhaust of indoor air and uses the existing forced air system to distribute fresh air. This method of installation requires that Fresh Air Supply the forced air circulation fan be operated fig. -
Page 19: Stale Air Return System
Fresh air supply grills may be either wall or ceiling mounted. Avoid locating these grills where room occupants may be exposed to the fresh air supply as this air temperature may be slightly less than the room air temperature. Also, it is recommended that adjustable grills such as round “Tech Grills” be used to permit balancing of the ventilation by room application. - Page 20 Clothes dryer off, (if vented to the outdoors) g) Furnace, hot water heater, (non direct vent) are turned off. h) All other exhaust fans are off. Ensure that HRV filters and core are in place and integral balancing dampers are wide open. Power up HRV and set to high speed.
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Page 21: Air Flow Balancing
AiR FLOW BALANCiNg READ THE AppLiCATiON WARNiNg AT THE FRONT OF THis MANuAL. upon completion of the installation it is necessary that the Ventilation system be balanced. This is necessary to ensure that the volume of air being exhausted from the dwelling is equal to the volume of air being supplied. Balancing will also ensure that the HRV is operating at it’s maximum efficiency. - Page 22 Fig. 5 MODEL NW85T ONLY AT HigH spEED Refer to the following conversion chart to determine CFM flow. Mag Reading Mag Reading Mag Reading Mag Reading inches Wg inches Wg Equivalent inches Wg inches Wg Equivalent supply Air supply Air Exhaust Air Exhaust Air stream...
- Page 23 A positive pressure situation within the dwelling may drive moist air into the external walls where, in cold weather it may condense, potentially causing structural damage. A negative pressure situation within the dwelling may have severe undesirable effects. In some geographic locations, radon gas may be drawn into the living space.
- Page 24 Summeraire HRV Air Flow Balancing Models: NW85T/NW125T A. Preliminary Procedures: 1. Seal all the unit’s ductwork with foil tape. 2. Close all windows and doors and fireplace damper, turn off all exhaust devices (range hoods, clothes dryer, bath fan, etc.), make sure all filters are clean.
- Page 32 DIGITAL W 20 MIN LED W DEHUMIDISTAT COMMON THERM Y THERM C THERM W RELAY N/O RELAY C RELAY N/C...
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Page 33: Replacement Parts List
Replacement parts listing MODEL NW85T ITEM NO. PART NUMBER DESCRIPTION 8.MTR133BH MOTORIZED IMPELLER 8.CLDSPLY85T COLD SUPPLY COLLAR 8.CLDEX85T COLD EXHAUST COLLAR 8.CONN4 WIRE CONNECTOR 4 POLE 8.CAP475V6MF MOTOR CAPACITOR 8.STRAP25 HANGING STRAP 8.LATCH3 DOOR LATCH 8.CORE85T CORE 8.FILT85T AIR FILTER 8.SPIGOT DRAIN SPIGOT ASSEMBLY 8.TRAYNW85T... - Page 34 Replacement parts listing MODEL NW125T ITEM NO. PART NUMBER DESCRIPTION 8.MTRH25A3 MOTORIZED IMPELLER 8.CLDSPLY125T COLD SUPPLY COLLAR 8.CLDEX125T COLD EXHAUST COLLAR 8.CONN4 WIRE CONNECTOR 4 POLE 8.CAP475V6MF MOTOR CAPACITOR 8.STRAP25 HANGING STRAP 8.LATCH3 DOOR LATCH 8.CORE125T CORE 8.FILT125T AIR FILTER 8.SPIGOT DRAIN SPIGOT ASSEMBLY 8.TRAYNW125T...
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Page 35: Warranty
Core Summeraire Mfg. warrants the “Core” of the Heat Recovery Ventilator to the original purchaser if the core has become defective by reason of defective material and/or faulty workmanship. This warranty applies to the original purchaser of the Heat Recovery Ventilator for as long as they own the dwelling.
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