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WARNING

Energy Recovery Ventilators

MODEL

 

OD-ERV 150AC

PLEASE READ INSTRUCTION BEFORE COMMENCING INSTALLATION AND RETAIN FOR FUTURE REFERENCES.

 

Electrical products can cause death or injury, or damage to property.
If in any doubt about the installation or

 

use of this product, consult a competent electrician.

CLEANING & MAINTENANCE

WARNING — THE INSTALLATION MUST BE CARRIED OUT BY

A QUALIFIED

 

ELECTRICIAN. 

1.

For general ventilating use only. DO NOT use to exhaust hazardous or explosive

materials and vapours

2.

To avoid motor bearing damage and noisy and/or unbalanced impellers,

keep drywall spray,

 

construction dust, etc. 

out of

 

the

 unit

3. Before maintenance, please unplug the unit line cord

Instruction Manual

1-888-543-6473
1-888-541-6474

13376 Comber Way 

Surrey BC V3W 5V9

[email protected] 
www.ortechindustries.com

375 Admiral Blvd

 

Missis

s

auga

ON L5T 2N1

CAUTION

Application Notice

1.

Blower wheels are sharp and can cause injury. Make sure it is not running before opening the door

2. Before servicing or cleaning the unit, unplug the unit line cord or shut off power at service switch or circuit breaker.

Make sure unit is not working before opening its door, until the service or cleaning is completed

3. This instruction manual shows the suggested installation method. Additional measures may be required by local codes and standards
4. Connect this unit only to a 120V AC grounded circuit protected by a 15 amps circuit breaker
5. DO NOT install unit or controls where they can be reached from a tub or shower
6. The Energy Recovery Ventilators MUST be properly ducted to the outdoors
7. Outside air inlet for this unit MUST be located away from sources of hazardous air such as auto exhausts
8. Sufficient air is needed for

 proper combustion and exhausting of gases through the flue (chimney) of fuel burning equipment is located, 

take steps to assure that combustion air supply is not affected. Follow the heating equipment manufacturer's requirements and the 
combustion air supply requirements of applicable codes and standards

9.

When cutting or drilling into wall or ceiling, DO NOT damage electrical wiring and other hidden utilities

10.

DO NOT 

connect power to the units external control terminals — this will damage the unit. The external terminals are for use only with 

un-powered controls designed for low-voltage operation

11. When door springs are dis-engaged, the ERV door can be hinged open to access to internal components for routine maintenance and 

cleaning. Take precautions when dis-engaging the door springs to ensure the door does not cause any damage or injury. When the Energy 
Recovery Ventilator is installed so that the door swings down (upside down), lower the door down slowly

Maintenance Requirements

Service filters every three months or as needed when the unit is in regular use to keep them reasonably clean

1. Release door spring clips and carefully swing access door open. Remove the door if necessary
2. Remove filter clips and pull out the filters
3. Vacuum core and filters with a hose (not included)
4. Re-install filters and filter clips
5. Re-install door and secure door spring clips

** The filters should be replaced after they have been cleaned several times. The primary contact for replacement filters 

** 

for your unit is the installing contractors. You may also wish to produce your own filters. Spun polyester filter media 

** 

or material should be used similar to the existing filter in the residential unit. The size of each filter (2 required per

** 

unit) is as follows: 9-1/2" x 7-1/4" x 3/8"

Summary of Contents for OD-ERV 150AC

Page 1: ...rces of hazardous air such as auto exhausts 8 Sufficient air is needed for proper combustion and exhausting of gases through the flue chimney of fuel burning equipment is located take steps to assure that combustion air supply is not affected Follow the heating equipment manufacturer s requirements and the combustion air supply requirements of applicable codes and standards 9 When cutting or drill...

Page 2: ...he energy exchange core stays clean even if the core faces are covered with dust CAUTION DO NOT WASH THE ENERGY EXCHANGE CORE The energy exchange core can be replaced but is expensive The core is secured to the unit by the core latch when the unit is installed as installation B If the core latch is disengaged the core can fall out causing damage or injury if not prepared after the door swinging do...

Page 3: ... check cycle The orange L2 LED indicator light will illuminate continuously The check cycle will run the RA fan for 5 minutes at full speed every 15 minutes 25 of every hour in order to minimize frost on the core and meet code requirements The OA fan will not run during this check cycle The HVAC AHU blower if connected will NOT run during this check cycle to prevent cycling The MOS will still boos...

Page 4: ...tion of the HVAC system in a residence the speed controls should be re calibrated for optimum performance If the residence undergoes significant structural changes such as an addition to the home the unit should also be re calibrated If optional MERV 13 filters are installed recalibration is also required The unit provide the ability to deliver completely balanced airflows or to modify them as des...

Page 5: ...nit in an attic or other unconditioned space all of the unit s ductwork that is located in the attic MUST be insulated Use at least R 6 insulation INSTALLATION GUIDE CAUTION RISK OF INJURY WHEN LIFTING AND INSTALLING UNIT OVERHEAD Get a helper and wear eye protection and gloves Locate the unit for the simplest duct layout and connections Note that the door is equipped with hinges For the homeowner...

Page 6: ...a hallway or stairway rather than in a sitting area If you want to get fresh air into specific room with high occupancy you can split up the fresh air supply For Houses WITH Forced air Heating and Cooling Systems see Fig 1 Fig 3 and Fig4 Most units are installed with the fresh air duct connected directly to a return duct for the main heating and cooling system Make sure to connect the fresh air du...

Page 7: ...mneys furnace and water heater exhausts or other sources of contamination or carbon monoxide NEVER locate the fresh air inlet inside a structure Installing Return Air RA Ducts All the stale air returns are connected by ducts to the unit Generally empty stud cavities are used for returns as is often done with cold air returns for the furnace using standard duct boots to connect to six inch pipe at ...

Page 8: ...he HVAC AHU 24V AC dry contact relay to the terminal block so that when the ERV is operating the HVAC AHU blower operates to help distribute the fresh air through the existing ductwork if needed The unit has an optional terminal block for a MANUAL OVERRIDE SWITCH MOS connection Connect an ON OFF switch to the terminal block to manually switch the unit to high speed When the switch is off the unit ...

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