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CONTRACTOR EDITION HRV'S
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* LEAVE THIS DOCUMENT WITH THE HOMEOWNER
Rev. December 19, 2008
P.O. Box 2758 Windsor, Nova Scotia, B0N 2T0
Phone: 902-798-2261 Fax: 902-798-2557
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FOR MODELS CEA15-R, CEA18-C, AND CEA20-D
Specifications, dimensions and ratings may change without notice
as a result of ongoing product development and improvements
TABLE OF CONTENTS
Email: nuair@nu-airventilation.com
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Related Manuals for Nu-Air CEA15-R
Summary of Contents for Nu-Air CEA15-R
- Page 1 Email: nuair@nu-airventilation.com CONTRACTOR EDITION HRV’S & & FOR MODELS CEA15-R, CEA18-C, AND CEA20-D * LEAVE THIS DOCUMENT WITH THE HOMEOWNER Specifications, dimensions and ratings may change without notice as a result of ongoing product development and improvements TABLE OF CONTENTS...
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Page 2: Table Of Contents
HOW THE NU-AIR SYSTEM WORKS......................... 3 INSTALLATION................................3 2.1. Installer's Responsibilities........................3 2.2. Installation System Options .......................3 2.3. Ducting to The Outside........................5 2.4. Mounting & Noise Control........................6 2.5. Port Configurations ..........................6 2.6. Ductwork ..............................7 2.7. Drain Connections ..........................7 2.8. Balancing the System...........................8 CONTROLS.................................. -
Page 3: How The Nu-Air System Works
Do not install in enclosed garages. 2.2. Installation System Options Before installing your HRV, please read these instructions for correct installation. The Nu-Air HRV is a self-contained system that is ready to be installed. There are three commonly used and approved methods of installation. - Page 4 • Each room of the space is serviced with a vent mounted in the ceiling or high on an interior wall (within 12" of the ceiling). • Vents are located deep within a room, where they will not short circuit or create an uncomfortable draft.
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Page 5: Ducting To The Outside
2.2.3.1. Simplified System - Continuous Ventilation & Intermittent Operation For proper supply air distribution with this system, and to prevent short circuiting in the return air duct, the furnace fan must run during ventilation mode. Interlock the furnace and HRV in accordance with Section 3.7. -
Page 6: Mounting & Noise Control
Avoid hanging the HRV directly below a bedroom or other quiet area. 2.5. Port Configurations CEA18-C CEA15-R 1. FROM OUTSIDE - Insulated flex pipe 2. TO SPACE - Non insulated pipe CEA20-D 3. FROM SPACE - Non insulated pipe 4. -
Page 7: Ductwork
Access to a drain or sump is required to handle the HRV condensate. Care should be taken to run the condensate tube where it cannot freeze. For best results, Nu-Air recommends the following steps be followed when installing drain kits on residential HRV's. -
Page 8: Balancing The System
2.8. Balancing the System Balanced air flow between the supply and exhaust air streams is essential to the performance of an HRV. The equipment we recommend for balancing your system is easy to use, reliable and one of the most cost efficient flow balancing, measuring systems available. -
Page 9: Controls
This method is called the “Room Count Method” and is part of CSA F326 (Residential Mechanical Ventilation Systems). 0.3 air change per hour is no longer used. Air meter available from Nu-Air wholesalers. (Part #100460) Balance the HRV in less than five minutes. - Page 10 # 1 Frequency Setting - Set to ON (down) for 60 Hz service. This includes all of North America. Set to OFF (up), for electrical grids using 50 Hz. #2 Defrost Type - ON (down) is for damper/recirc. models. OFF (up) is for fan shut down defrost models.
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Page 11: Machine On/Off Switch
Damper Defrost – On damper/recirc. models, the temperature sensor is located in the fresh air stream before the core. When the outdoor air temperature is measured to be below freezing, a timed defrost cycle is initiated. The machine runs normally for 36 (normal mode) or 20 (arctic mode) minutes and then shuts off the fresh air by closing a damper for 4 (normal mode) or 5 (arctic mode) minutes. -
Page 12: Spring Wound Timers
-30 C (-22 F) for damper defrost or recirculation models. Consult Nu-Air Ventilation Systems Inc. or your nearest wholesaler for more information. 5. START-UP • Ensure the controls are connected in accordance with Section 3. -
Page 13: Operating Hints
Dirty filters can reduce ventilation efficiency, result in unbalanced airflow and damage or shorten the life of the motors. Clean every three months. Polyester filters should be replaced annually. Permanent electrostatic filters are available from your Nu-Air dealer. Filters remove easily by opening the front cover. -
Page 14: Grills & Duct Work
7.6. Grills & Duct Work Clean the grills when they are dusty or greasy with soap and water. Check for punctures in the insulation jacket on the fresh air and exhaust air ducts. Repair any punctures using foil tape. 8. ANNUAL SERVICING Your HRV should undergo annual general servicing by an accredited contractor. -
Page 15: Trouble Shooting
9. TROUBLE SHOOTING SYMPTOM EXPLANATION ANSWER Humidity levels too low. HRV air flows incorrectly balanced. Balance Air Flow(s). • • • • • • • • Dehumidistat control set too low. Increase Dehumidistat. • • • • • • • • Lifestyle of the resident(s). -
Page 16: Electrical Schematics
10. ELECTRICAL SCHEMATICS 10.1. WINDSOR Wall Controls Wiring Diagram WIN-20 WIN-1 Rev. December 19, 2008 Page 16 of 19... -
Page 17: Standard D-Stat Wiring Diagram (Part#Dstat-1)
10.2. 24V Standard D-Stat Wiring Diagram (Part#DSTAT-1) NOTE: Jumper must be removed if WIN-20 timers are installed Rev. December 19, 2008 Page 17 of 19... -
Page 18: Damper Defrost And Re-Circulation Defrost
10.3. Damper Defrost and Re-circulation Defrost Rev. December 19, 2008 Page 18 of 19... -
Page 19: Warranties
Fifteen Year HRV Core Warranty If the aluminum core in your NU-AIR CEA Series Heat Recovery Ventilator fails due to a defect in material or workmanship NU-AIR Ventilation Systems Inc. will supply a new core FOB Factory to replace the defective part. - Page 20 READ AND FILL OUT REGISTRATION ’ ’ CARD IMMEDIATELY THIS IS YOUR WARRANTY REGISTRATION CARD In order to properly validate your warranty, you must fill out and return this card. Failure to register unit will FIRST NAME LAST NAME require you to present proof of purchase should the unit NOM DU PRÉNOM ________________________ NOM DE FAMILLE______________________________ require service.
- Page 21 P.O. Box 2758 Windsor, Nova Scotia Canada B0N 2T0 Ph: 902-798-2261 Fax: 902-798-2557...
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