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1. Inspect Exterior Hoods at least once a month.

Make sure exhaust and fresh air supply hoods are not
blocked or restricted by leaves, grass, or snow. In winter, it
is especially important to make sure snow is not blocking
the hoods or that frost has not built up on the wire mesh
(bird screen).

W

ARNIN

G

:

Blockage of hoods may cause an imbalance.

2. Clean Air Filters - Twice a Year

The standard filters equipped with your HRV are remov-
able and washable.

a) simply open access door and slide core out

b) remove filter clips

c)

once clips are removed filters can be taken off the core
to be rinsed with water or a combination of mild soap
and water. Do not clean in the dishwasher

d) to re-assemble, place clean filter(s) (wet or dry) back

into their positions against the core and return clips to
their original position

e) slide core back into its original position

3. Clean Core - Twice a Year

a) open access door

b) carefully grip ends of core and pull evenly outward.

-core may be snug, but will slide out of the channel

c)

once removed from the cabinet remove filters

d) wash core in warm soapy water

(do not use dishwasher)

e) install the clean filters

f)

install clean core

N

ote

:

Core installation label on the outer end of the core.

To install the clean core:

a) first mount the bottom flange of the core guide into the

bottom H channel approximately 1/4” (6mm)

b) mount the left or right side flange of the core guide

approximately 1/4” (6mm) followed by the other side

c) mount the top flange of the core guide into the top H

channel approximately 1/4” (6mm)

d) with all four corners in place and the core straight and

even, push hard in the center of the core until the core
stops on the back of the cabinet

NOTE:

Core will appear to stick out from cabinet approxi-

mately 1/8” (3mm). This is designed this way so that the
access door will fit tight against the core.

4. Motors - Maintenance Free

5. Drain (condensate) Line - Clean Once a Year

Inspect drain line, drain spout and “P” trap for blockage,
mold or kinks. Flush with warm soapy water and replace if
worn, bent or unable to clean.

6. Clean Duct System if Required

The duct system running to and from the HRV may accu-
mulate dirt. Wipe and vacuum the duct once every year.
You may wish to contact a Heating/Ventilation company to
do this.

7. General Maintenance - Twice a Year

Wipe down the inside of the cabinet with a damp cloth to
remove dirt, bugs and debris that may be present.

8. Cleaning the Fans

Fans may accumulate dirt causing an imbalance and/or
excessive vibration of the HRV. A reduction in the air flow
may also occur. In new construction this may result within
the first year due to heavy dust and may occur periodically
after that over time depending on the outdoor conditions.

unplug the HRV and open the service door

remove the core

open access door and wipe clean the impeller blades.
Avoid moving or damaging balancing flat weight, clip is
usually found on one or more of the fan blades

vacuum and wipe

reassemble making sure ducting is reattached firmly
and insulation and moisture barrier are sealed and
taped

Before attempting this task, thought should 

b

e given

to having a qualified service technician complete the
service work.

Maintenance

HRV

Summary of Contents for RNC5-TPD

Page 1: ...air The HRV is equipped with an aluminum core The device uses the stale air that is being exhausted to con dition the fresh air as it is being brought in These instructions are intended as a general guide and do not supersede local codes in any way Consult authorities who have jurisdiction before installation Shipping and Packaging List 1 Required Tools 1 Application 1 General 1 Engineering Data 2...

Page 2: ...e DUCT CONNECTIONS 4 5 127 mm duct connections Weight 61 lbs 28 kg Shipping Weight 64 lbs 29 kg All units conform to CSA and UL standards 27 690 mm 15 378 mm 2 1 4 57 mm 18 3 4 475 mm SPEED SELECTION SWITCH TM HEAT RECOVERY VENTILATOR HEAT RECOVERY VENTILATOR Dimensions OPTIONAL ACCESSORIES 99 101 Crank Timer 99 116 Dehumidistat Ventilation Control Dehumidistat with ON OFF 99 130 Dehumidistat Cont...

Page 3: ...rical box of HRV OFF Standby LOW or OFF HIGH speed operation is also available DUCT CONNECTIONS 4 5 127 mm duct connections Weight 61 lbs 28 kg Shipping Weight 64 lbs 29 kg All units conform to CSA and UL standards 27 690 mm 15 378 mm 2 1 4 57 mm 18 3 4 475 mm SPEED SELECTION SWITCH Dimensions 1 2 3 0 20 40 60 80 100 120 140 160 180 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 1 1 Static Pressure in w ...

Page 4: ...nded Weatherhood Location and Installation Weatherhood kit includes two fixed cover hoods with a 1 4 6mm mesh screen Exhaust Weatherhood Requirements At least 6 2 m from the ventilation air intake At least 18 460 mm above ground or above the depth of expected snow accumulation Installation Improper installation adjustment alteration service or maintenance can cause property damage personal injury ...

Page 5: ...um of 6 2m separation and a minimum of 18 460mm clearance above the higher of the grade or anticipated snow level CAUTION Weatherhood Clearances Wide Head Nails not supplied STRAPS AND SCREWS supplied WIDE HEAD NAILS not supplied DETAIL NOTE Front clearance of 25 inches 635 mm is recommended for servicing unit Unit is designed for horizontal installation only as shown Using full length hanger stra...

Page 6: ...lated duct should be connected between the HRV and the supply exhaust duct system The main supply and return lines to from the HRV must be 5 inches 150mm minimum Branch lines to the individual rooms may be as small as 4 inches 100mm but 5 inch 125mm lines are preferred All ducts running through attics and unheated spaces must be sealed and insulated to code Fresh Air Ducting In applications that d...

Page 7: ...t grille is available as part number This grille includes a removable grease filter Canadian building codes require that kitchen grilles be equipped with washable filters Field supplied balancing dampers should be installed external to the unit to balance the amount of stale air being exhausted with the amount of fresh air being brought into the house Refer to Air flow Balancing section The Round ...

Page 8: ...ue to the differences in pressure between the HRV and the equipment it is being connected to the HRV air flow must be confirmed on site using the balancing procedure found in the installation manual Return Air 3 min recommended Weather hood arrangement requires a minimum of 6 2m separation and a minimum of 18 460mm clearance above grade or anticipated snow level CAUTION Stale air drawn from key ar...

Page 9: ...inuously or interlocked with HRV 2 A minimum separation of 40 inches 1m is required between the two direct connections 3 The exhaust air connection should be upstream of the supply air connection to prevent exhausting any fresh air 4 Weather hood arrangement is for drawing purposes only Six feet 2m minimum separation required 18 inches 460mm above grade minimum or above anticipated snow level 5 Du...

Page 10: ...n the installation manual Weather hood arrangement requires a minimum of 6 2m separation and a minimum of 18 460mm clearance above grade or anticipated snow level CAUTION Stale air drawn from key areas of home bathroom kitchen laundry Fresh air supplied to main living areas of house HRV must be balanced WARNING Stale Air To Outside Fresh Air From Outside STALE AIR from various parts of home i e ba...

Page 11: ...s the dehumidistat or the fan timer should be made by a quali fied service technician Low voltage wires from the remote controls are connected to the HRV micro processor board In order to prevent electric shock when cleaning or servicing the HRV it is extremely important to confirm the polarity of the power line that is switched by the safety disconnect switch The hot line black is the proper line...

Page 12: ...ode DIP Switch Settings The Dehumidstat Dial Main controls feature a dehumidistat dial The dehumidistat is used to reduce high winter humidity levels The dehumidis tat activates high speed ventilation when the indoor humidity level exceeds selected setting Optional Timers Timers should be present when the HRV is exhausting from specific locations i e bathrooms laundry rooms The 20 Minute Timer is ...

Page 13: ...al Strip Red to Red Black to Black Red to Red Orange to Orange Black to Black 2040 ON OFF Dehumidistat Crank Timer Red to Red Black to Black Recirculation Control Remove factory installed jumper when installing this control Remove factory installed jumper when installing this control Factory installed jumper Circuit Board Terminal Strip Circuit Board Terminal Strip Circuit Board Terminal Strip Low...

Page 14: ...de to provide high speed operation Changing Speeds Speed Selection Switch LOW SPEED STANDBY MED LOW SPEED Figure 1 Factory DIP Switch Settings The factory setting of the DIP switches located on the cir cuit board provides continuous low speed ventilation Optional Remote Controls will initiate high speed ventila tion Remote controls with an ON OFF switch refer to Remote Control Devices in this manu...

Page 15: ... TPD DEFROST DETAILS P1 1 2 3 4 PIN 1 RED PIN 2 ORANGE PIN 3 BLACK PIN 4 SPARE PCB PLUG IN RED BLACK PLUG IN CONNECTOR BI DIRECTIONAL DAMPER MOTOR ORANGE RED BLACK ORANGE Model RNC5 Only TO MOTORS BLUE RED INTERFACE RELAY CONTACTS ...

Page 16: ...16 Wiring Diagrams Model RNC5 TPF LOW SPEED TO EXHAUST MOTOR TO SUPPLY MOTOR BLUE RED BROWN WHITE BLACK ...

Page 17: ...Interface relay contacts from initializing the condenser unit This problem can occur at the thermostat because the Y terminal is connected to the G terminal internal to the stat When R and G are closed at the furnace by dehumidistat or relay 24 Volts is sent to G at thermostat 24 Volts is then sent through Y which will initiate outdoor condenser Wire Connector Interlocking HRV Operation to an Airh...

Page 18: ...he bottom drip pans and drains out through the bottom drain connec toions The defrost cycle repeats automatically until the air temperature rises above 27 F 3 C Defrost Operation Dehumidistat Operation HRV only Defrost Cycle DIP Switch Settings The optional HRV remote controls include a dehumidistat which controls humidity levels during the heating season The control has a selector knob with setpo...

Page 19: ...distances but the actual installation may limit the amount of straight duct The Pitot tube should be connected to a magnehelic gauge or digital manometer capable of reading from 0 to 0 25 in 0 62 Pa of water preferably to 3 digits of resolution The tube com ing out of the end of the Pitot is connected to the high pressure side of the gauge The tube coming out of the branch of the Pitot is connecte...

Page 20: ...ired kitchens if required Placement of Pitot Tube HRV MAGNEHELIC DUCT AIR FLOW Pitot tube High Pressure Side Low Pressure Side Magnehelic gauge Pitot Tube and Gauge Pitot Tube Air Flow Balancing Kit with magnehelic gauge Pitot tube hose and carry case NOTE Graphic is for illustrative purposes only Duct connection ports may vary ...

Page 21: ...rilles so as not to directly spill the supply air on the occupant eg over a sofa turn down the HRV supply speed A small duct heater 1kw could be used to temper the supply air placement of furniture or closed doors is restricting themove ment of air in the home if supply air is ducted into air handler return the air handler fan may need to run continuously to distribute ventilation air com fortably...

Page 22: ...into the top H channel approximately 1 4 6mm d with all four corners in place and the core straight and even push hard in the center of the core until the core stops on the back of the cabinet NOTE Core will appear to stick out from cabinet approxi mately 1 8 3mm This is designed this way so that the access door will fit tight against the core 4 Motors Maintenance Free 5 Drain condensate Line Clea...

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