Softaire RERV-C100 NF Energy Recovery Ventilator Instruction Manual

Instruction Manual for Softaire models including: RERV-C100 NF, RHRV-C100P compact, RHRV-S200A, RHRV-S200P, RHRV-130P ES, RERV-C100 NF Energy Recovery Ventilator, RERV-C100 NF, Energy Recovery Ventilator, Recovery Ventilator, Ventilator

Test Lab

File Info : application/pdf, 20 Pages, 3.92MB

80-80P-C100-C100P-C100A-C100NF-130P-manual b46571b0-5b29-43d3-abb7-3601ce7cb108 ?v=1746130411

HRV / ERV INSTALLATION AND OPERATION INSTRUCTIONS

RERV-C100 NF
Enthalpy Core
RERV-80(mini)
Enthalpy Core
RHRV-C100P(compact)
Polypropylene Core
RERV-C100(compact)
Enthalpy Core

NON HVI MODELS:
RHRV-C100P NF
Polypropylene Core:
RHRV-80 P(mini)
Polypropylene Core
RHRV-C100A(compact)
Aluminum Core
Maxum Series:
Model:
RHRV-S200A
Aluminum Core
RHRV-S200P
Polypropylene Core
RERV-S200 ES
Enthalpy Core

Field Balancing Ports

RHRV-130P ES
Polypropylene Core

4 Pine Street, Toronto, ON Canada M9N 2Y8 Tel: 416-247-0045 Fax: 416-247-2012 www.ontarioheatingltd.com info@ontarioheatingltd.com

IMPORTANT SAFETY INSTRUCTIONS READ AND SAVE THESE INSTRUCTIONS

! WARNING !

PACKAGING INSPECTION

TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK OR INJURY, OBSERVE THE FOLLOWING:
1. Read all the instructions carefully before installation, operation or maintenance of the unit. Failure to comply with instructions could result in personal injury and/or property damage.
2. Installation of the unit and the corresponding electrical wiring must be done by a qualified person and be in accordance with all municipal and national electrical codes and pertinent industry standards should be verified before installation.
3. Use this unit only in the manner intended by the manufacturer. If you have any questions, contact the manufacturer.
4. Moving Parts, Disconnect Power supply before opening. ensure that all the nuts and screws are securely fastened before restarting the unit.
5. Before servicing or cleaning the unit, switch power off at service panel and lock the service disconnecting means to prevent power from being switched on accidentally. When the service disconnecting means cannot be locked, securely fasten a prominent warning device, such as a tag, to the service panel.
6. When cutting or drilling into wall or ceiling, make sure that you do not damage electrical wiring and other hidden utilities.
7. To reduce the risk of fire, use only metal ductwork. Do not use any accessories not recommended by the manufacturer.
8. When performing installation, servicing or cleaning these unit, it is suggested to wear safety glasses and gloves.
9. Do not use this unit for commercial purpose. 10. For residential use on.lyThe unit must be grounded. 11.Do not install in a cooking area.
12. This unit is not designed to exhaust combustion and/or dilution air for fuel burning appliances.

Open the box and check to make sure all the parts and accessories are present and in good condition. If you find any parts missing or any shipping damage please contact factory or our distributor immediately.

CONTENTS

Parts List

·RHRV-80P, RERV-80 ·RHRV-C100P, RHRV-C100A, RERV-C100

1 2

· RHRV-C100P NF, RERV-C100 NF

· RHRV-120P ES, RHRV-130P ES

· RHRV-S200P, RHRV-S200A, RERV-200

ES Wiring Diagram

· Control Board and Switches

· Furnace / Fan-Coil / Heat Pump Interlock

- Standard Furnace Interlock Wiring

- Alternate Furnace Interlock Wiring

HRV and ERV Typical Installations

· - Fully Ducted System

- Furnace Return Airduct connection

- Semi Ducted System

· Horizontal

Vertical

· SingleVent & Access Door

Installation

· Drain Connection

Air Flow Balancing

· Balancing Procedure

· PitotTube Air Flow Balancing

M·aiRnetegnulaanr cMeaintenance

· Annual Maintenance

Troubleshooting

! CAUTION !

Climate Zone

1. Turn the unit OFF during construction or repair to avoid filter blockage.
2. Exhaust air outside - Do not intake / exhaust air into spaces within walls, crawl spaces, garage, or into attics.
3. Unit has to be installed in accordance to National and Local Building Code.
4. When leaving house for a long period of time (more than two weeks), a responsible person should check if unit operates adequately.
5. Published efficiencies are based on balanced air-flows on supply and exhaust.

Parts List

1
6
4
52

7 15

Mini Series
Model:
RHRV-80P
Polypropylene Core
RERV-80
Enthalpy Core

20*

21*

*Optional Parts:

17 *

6
8
6 9
19 *

Reference
1 2
3
4 5 6 7 8 9 10 11 12 13 14 15 16* 17* 18 19* 20* 21*

Description
HRV / ERV - lid, Pan Assembly Polypropylene collar 5" Dia. Polypropylene Core Enthalpy Core
Filter 6 1/2'' x 10" ( MERV - 4)
Temperature Sensor 5" Polypropylene Backdraft Damper Blower - Supply / Exhaust Adjustable Door Latch Drain Spout Assembly Core Locking Bracket Core Locking Nut Safety Switch Main control Board Main Control Board Bracket Door Hinges Mounting Brackets "T" Connector Webbing/Brackets/Ladder Locks Drain Pipe Motorized damper spring return 120V Motorized Damper Spring return Built-in by Factory

14 16 *

Old version

P/N# 6PIN
6-Pin harness (Provided with new version to wire timers/ Intermittent
switch & Interlock with New version Furnace, Fan coil &
Heat pump)

Part No.
9315M 014043C
9313M 9314M

RERV-80P QTY. 1 2 1 n/a

RHRV-80 QTY. 1 2 n/a 1

9358M 9326
014043 9360 9319 9320 9321
014016 9322
9361-FET(DIP) A
9355
9328 011135
9330 9332 9331 9362
9363

2 1 2 2 1 2 1 1 1 1 2 1 Set 4 1 2 Sets 1 1
1

Parts List

Filter

7 4
5 2

21*

7 15
2

Compact Series
Model:
RHRV-C100A
Aluminum Core
RHRV-C100P
Polypropylene Core
RERV-C100
Enthalpy Core

20*

*Optional Parts:

17 *

6
8

14 16 *

6 9
19 *

Old version

P/N# 6PIN

6-Pin harness

(Provided with new version

to wire timers/ Intermittent

switch & Interlock with

Furnace, Fan coil &

New version

Heat pump)

Reference

Description

HRV / ERV - lid, Pan Assembly

Polypropylene collar 5" Dia.

Aluminum Core

Polypropylene Core

Enthalpy Core

Filter 7" x 12" ( MERV - 4)

Temperature Sensor

5" Polypropylene Backdraft Damper

Blower - Supply / Exhaust

Adjustable Door Latch

Drain Spout Assembly

Core Locking Bracket

Core Locking Nut

Safety Switch

Main control Board

Main Control Board Bracket

Door Hinges

16*

Mounting Brackets

17*

"T" Connector

Webbing/Brackets/Ladder Locks

19*

Drain Pipe

20*

Motorized damper spring return 120V

21*

Motorized Damper Spring return

Built-in by Factory

Part No.
9315 014043C
9312 9313 9314 9358 9326 014043 9360 9319 9320 9321 014016 9322 9361-FET(DIP) A 9355 9328 011135 9330 9332 9331 9362 9363

RHRV-C100A QTY. 1 2 1 n/a n/a 2 1 2 2 1 2 1 1 1 1 2 1 Set 4 1 2 Sets 1 1
1

RHRV-C100P QTY. 1 2 n/a 1 n/a 2 1 2 2 1 2 1 1 1 1 2 1 Set 4 1 2 Sets 1 1
1

RERV-C100 QTY. 1 2 n/a n/a 1 2 1 2 2 1 2 1 1 1 1 2
1 Set 4 1
2 Sets 1 1
1

Parts List

14 13

6-Pin harness (Provided with new version to wire timers/ Intermittent
switch & Interlock with Furnace, Fan coil & Heat pump)
P/N# 6PIN
2
14

Old version New version 21*
7 1
19 *

9 4
8

RHRV-C100P NF
Polypropylene Core

RERV-C100 NF

Enthalpy Core

20* *Optional Parts:
18

3
11 10 7 6

17 * 16 *
19

Reference

Description

HRV / ERV - lid, Pan Assembly

Polypropylene collar 5" Dia.

Polypropylene Core

Enthalpy Core

Filter 7" x 12" ( MERV - 4)

Temperature Sensor

5" Polypropylene Backdraft Damper

Blower - Supply / Exhaust

Adjustable Door Latch

Drain Spout Assembly

Core Locking Bracket

Core Locking Nut

Safety Switch

Main control Board

Main Control Board Bracket

Door Hinges

16*

Mounting Brackets

17*

"T" Connector

Webbing/Brackets/Ladder Locks

19*

Drain Pipe

20*

Motorized damper spring return 120V

21*

Motorized Damper Spring return Built-in by

Factory

Part No.
9315 014043C

RHRV-C100P NF QTY.
1 2

9313

9314 9358 9326 014043 9317 9319 9320 9321 014016 9322 9361 9361-FET(DIP) A 9355 9328 011135 9330
9332 9331 9362

n/a 2 1 2 2 1 2 1 1 1 1
N/A 2 1 Set 4 1 2 Sets
1 1

9363

RERV-C100 NF QTY.
1 2
n/a
1 2 1 2 2 1 2 1 1 1 N/A 1 2 1 Set 4 1 2 Sets 1 1
1

Parts List

7 4

15
6
5 2

Model:
RHRV-130P ES
Polypropylene Core
* Optional Parts:
18

20*

16*

17 *

10 6

19 *

Old version

P/N# 6PIN

6-Pin harness

(Provided with new version

to wire timers/ Intermittent

switch & Interlock with

Furnace, Fan coil &

New version

Heat pump)

REFERENCE

Description

HRV / ERV - lid, PanAssembly

Polypropylene collar 5" Dia.

Polypropylene Core

(RHRV-130PES) (RHRV-120PES)

Filter 10 ½''x 12" ( MERV - 4) (RHRV-130PES)

Filter 8''x 12" ( MERV - 4)

(RHRV-120PES)

Temperature Sensor 5

5" Polypropylene Backdraft Damper

Blower - Supply / Exhaust

Adjustable Door Latch

Drain SpoutAssembly

Core Locking Bracket

Core Locking Nut

Safety Switch

Main control Board

Main Control Board Bracket

Door Hinges

16* Mounting Brackets

17* "T"Connector

Webbing/Brackets/Ladder Locks

19* Drain Pipe

20*

Motorized damper spring return 120V

21*

Motorized Damper Spring return Built-in by Factory

Part No.
9315ES
014043C
9393 RHRV-120PES CORE
9395 9395M 9326
014043 9317-ES
9319 9320 9321 014016 9322 9361-FET(DIP) B 9355 9328 011135 9330 9332 9331 9362 9363

RHRV-130PES
QTY 1
2
1 2 1
2 2 1 2 1 1 1 1 2 1 Set 4 1 2 Sets 1 1
1

Parts List

4
Filter
2

6
15
2
12 3

Maxum Series
model:
RHRV-S200A
Aluminum Core
RHRV-S200P

Polypropylene Core

RERV-S200ES
Enthalpy Core

Optional Parts:

20*

17 *

18 *

16*

8
9

11 10 6
19 *

Old version

P/N# 6PIN

6-Pin harness

(Provided with new version

to wire timers/ Intermittent

switch & Interlock with

New version

Furnace, Fan coil & Heat pump)

Reference

Description

HRV / ERV - Lid, Pan Assembly

Polypropylene Collar 6" Dia.

Aluminum Core

Polypropylene Core

Enthalpy Core

Filter 10 1/2" x 12" (MERV - 4)

Temperature Sensor

6"ø Polypropylene Backdraft Damper

Blower - Supply / Exhaust

Adjustable Door Latch

Drain Spout Assembly

10 Core Locking Bracket

11 Nut

12 Safety Switch

Main Control Board - Superior & Project

14 Main Control Board Bracket

15 Door Hinges

16 Mounting Brackets

17* " T " Connector

18* Webbing/Brackets/Ladder Locks

19* Drain Pipe

20* 120V Motorized spring return damper 6"ø 21* Motorized damper spring return built-in 6"ø

Part No.

RHRV-S200A QTY.

9391

PBD6C

9392

9393

n/a

9394

n/a

9395

9326

PBD6

013070

9319

9320

9321

014016

9322

9361-FET(DIP) A

9355

9328

1 Set

011136

9330 9332 9331

1 2 Sets
1

9397

9398

RHRV-S200P
QTY. 1 2 n/a 1 n/a 2 1 2 2 1 2 1 1 1 1 2
1 Set 4 1
2 Sets 1 1 1

RERV-S200ES
QTY. 1 2 n/a n/a 1 2 1 2 2 1 2 1 1 1 1 2
1 Set 4 1
2 Sets 1 1 1

Wiring Diagram

Recently we modified our control board layout to provide easy wiring connections for timer switches/ Intermittent switch (low voltage) without accessing to our electrical box. Initially, some units may come with older version or newer version of Control Boards. But overall functionality of both type of boards are same.

CONTROL BOARD: Old Version

Optional Accessories (Not Supplied)

a) Timer Switch (TC100) b) Wall Switch c) Dehumidistat
d) Time Delay Switch (TC100-120 & TC100-120P)

e) Master On/Off Switch for HRV/ERV
f ) Light

g) Intermittent Switch

(IC 100-5V)

Low

YEL

RED GND

d)
RED
Ground
b) or

TC100-120

BLACK WHITE

120 Vac / 1 / 60Hz Power Supply

TC100-120P

Note: Same power source can be

used for wall switch,Time delay switch

(TC100-120 & TC100-120P) and HRV / ERV

Low
120 Vac / 1 / 60Hz Power Supply

e)
On Off

Note:
Up to 4 Timer Switches (TC 100-5V) and one intermittent switch (IC 100-5V) can be connected to control board of HRV/ERV by using three 24 AWG (min.) standard Copper wires as shown. Maximum total wire length 75ft. (see option 2)
g)

Ext. Interlock

+5
DAT
C
Speed Contact

Low Voltage

L0/HI SPEED HV INPUT

Remote ON/OFF (HV-High Voltage)

Furnace, Fan Coil, Heat Pump Interlock

High

Option-1

YELLOW ORANGE YELLOW
ORANGE

Damper Motor
(Singlewinding)

For built-in
internal damper connection (forward / reverse motor)

Low

Supply Fan Speed

4 - Speed Controller for Manual Balancing and Air Flow Adjustment
(Turn the Knob clockwise to increase speed)

High

(Also available without OFF mode)
Option 2:

Low

to Control Board
+5 DAT C
YEL Intermittent
RED
OR Timer GND Switch 1

Temp. Sensor

Exhaust Fan Speed

C0M

Damper Interlock
Safety Switch

Light / Switch Option

Ext. Interlock

Light On / Off
HRV/ ERV Hi / Low
120 Vac / 1 / 60Hz Power Supply

NC C N0

L0/HI Speed HV Input

Remote

0n/0ff HV

Jumper

(remove jumper to install

master ON/OFF switch)

Fuse

External
Damper Motor
Option-2

Ground

FAN2 FAN1 NEUTRAL LINE

YEL

RED

Timer

GND

Switch

Supply Fan

Exhaust Fan

Ground

YEL

RED

Timer

GND

Switch

120 VAC / 1 / 60Hz Power Supply

Note:
Make sure, the Line must be connected to Line and Neutral connected to Neutral.

YEL

RED

Timer

GND

Switch

(TC100-5V)

Unit will not function if not connected correctly.
FAN #1 - Single speed (Bathroom Exhaust fan connection for "Project Series") Model # RHRV-P100A

Important Note:- When installing timers or time delay switches, make sure that they are for appropriate HRV/ERV models.

RHRV-P100P RERV-P100

Wiring Diagram

CONTROL BOARD: New Version
Optional Accessories (Not Supplied) a) Timer Switch (TC100-5V) b) Wall Switch c) Dehumidistat d) Time Delay Switch (TC100-120 & TC100-120P) e) Master On/Off Switch for HRV/ERV f ) Light g)Intermittent Switch (IC 100-5V)

a)
Low

DAT/WHITE

+5V/RED GND/BLACK

d)
RED

BLACK WHITE

Ground
OR
b)
Hi

120 Vac / 1 / 60Hz Power Supply
TC100-120 P
Note: Same power source can be used for wall switch, Time delay switch (TC100-120 & TC100-120P) and HRV/ERV

Low

120 VAC/1/60Hz

Power Supply Off

Low Voltage

RERV-80(min) RHRV-80P (mini) RHRV-C100P RERV-C100 RHRV-C100A RERV-C100NF RHRV-C100P NF RHRV-S200A RHRV-S200P RERV-S200ES

Note:

Up to 4 Timer Switches (TC 100-5V) and

one intermittent switch (IC 100-5V) can be connected to control board of HRV/ERV by using three 24 AWG (min.) Copper wires as shown. Maximum total wire length 75ft.

(see option 2)

(PCB with DIP

Switch)

RHRV-130P ES
(Also available without OFF mode upon request)

GND DAT 5V

NC C
N0 Interlock

Speed Contract

Low Voltage (Dry Contact)

L0/HI SPEED HV INPUT

5VDC Timer Switch Connection

YELLOW ORANGE
BLUE

Remote
0n/0ff (HV-High Voltage) (These connections must be done inside
the electric box)

High

(PCB without

DIP Switch)

Please do not touch DIP setting

Supply Fan

Furnace, Fan Coil, Heat Pump Interlock

Low

ON DIP 1234

PCB with DIP

Switch(Newer Version)

Option-1

YELLOW ORANGE
YELLOW

Damper Motor
(Singlewinding)

For built-in internal damper connection (forward / reverse motor)

ORANGE

Light / Switch Option

Ext. Interlock

Light On / Off
HRV/ ERV Hi / Low
120 Vac / 1 / 60Hz Power Supply

DAT

GND

L0/HI Speed HV Input

Remote 0n/0ff HV

Jumper
(remove jumper to install master ON/OFF switch)

4 - Speed Controller for Manual Balancing and Air Flow Adjustment
(Turn the Knob clockwise to increase speed)

High

Exhaust Fan

NC C0M N0

RED WHITE BLACK
FAN2 FAN1 NEUTRAL LINE

to Control Board

+5 DAT C/GND

DAT

+5V Intermittent

OR Timer

GND

Switch 1

DAT

+5V

Timer

GND

Switch 2

DAT

+5V

Timer

GND

Switch 3

DAT

Timer

+5V

Switch 4

GND (TC100-5V)

Temp. Sensor

Low

Safety Switch

Damper Interlock

Fuse

External Damper Motor
Option-2

Ground

Supply Fan Exhaust Fan

Ground

120 VAC / 1 / 60Hz Power Supply

Note:
Make sure, the Line must be connected to Line and Neutral connected to Neutral. Unit will not function if not connected correctly.

FAN#1 - Single Speed (Bathroom Exhaust fan connection for "Project Series")
Model # RHRV-P100A RHRV-P100P RERV-P100

Wiring Diagram (cont'd)

Furnace / Fan-Coil / Heat Pump Interlock:

! WARNING !
Never connect a 120 volt AC circuit to the terminals of the furnace/fan-coil/heat pump interlock (Standard Wiring). Only use the low voltage class 2 circuit.

Standard Interlock Wiring

FOUR WIRE
TWO WIRE heating only

THERMOSTAT TERMINALS

W R

G C

TWO WIRE

Cooling System

LO/HI Speed HV Input

Remote On/Off
HV

+5 DAT
C
Speed Contact
NC C NO

Low Voltage

HIGH VOLTAGE Ext. Interlock

OLDER VERSION OF CONTROL BOARD

Furnace, Fan Coil, Heat Pump Interlock
GNGDNDDADTAT 55VV

LO/HI SPEED

NCNC CC

HV INPUT

NNOO

Remote ON/OFF

(HV-High Voltage)

(These connections

must be done inside

the electrical box)

NEWER VERSION OF CONTROL BOARD

For a furnace connected to a cooling system:
On some older thermostats, energizing the R and G terminals at the furnace has the effect of energizing Y at the thermostat and thereby turning on the cooling system. If you identify this type of thermostat, you must use the "Alternate Interlock Wiring".

FOUR WIRE
TWO WIRE heating only

THERMOSTAT TERMINALS

W R G C Y

TWO WIRE

Cooling System

LO/HI Speed HV Input

Remote On/Off
HV

+5 DAT
C
Speed Contact
NC C NO

Low Voltage

High Voltage Ext. Interlock

OLDER VERSION OF CONTROL BOARD

Furnace, Fan Coil, Heat Pump Interlock
GGNNDD DDAATT 55VV

LO/HI SPEED HV INPUT

NNCC CC NNOO

Remote ON/OFF

(HV-High Voltage)

(These connections must be done inside the electrical box)

NEWER VERSION OF CONTROL BOARD

HRV and ERV Typical Installations

Typical Installations for House

Fully Ducted System

This is a stand alone HRV/ERV system which is not connected to a force air system. Stale air is drawn from key areas of the home (bathroom, kitchen) while fresh air is supplied to main living areas.
2 Single Vents SVE50 and SVI-50 Shown. "Fresh Air/ Exhaust Air Vents Installation"

Wall Cap Exhaust/Intake WCE-5, WCI-5 shown
*Re - Circulation Efficiency If distance "X" is 5ft - 99.7% "X" is 3ft - 96.5%
Furnace Return Air-duct Connection
DVS100 Double Vent with hood shown "Fresh Air/Exhaust Air Vent installation"

Distance "X"
Filter box FB-100

Filter box

HRV/ERV

RETURN-AIR DUCT FURNACE
Semi Ducted System
Double Vent with Extruded Aluminum Grille DVG200 shown "Fresh Air/Exhaust Air Vent installation"

Fresh outdoor air IN

To HRV/ERV Port #1

Furnace
Note:

Pre-filter

Carbon pleated filter

Note: * Suitable up to 150CFM

· This installation enables stale air to be drawn from the poorest air quality areas
of the home (washrooms & kitchen)

· It is recommended that the furnace blower run continuously or HRV/ERV operation be interlocked with the furnace blower to evenly distribute the fresh air throughout the house.

· A backdraft damper is required in the exhaust air duct to prevent outdoor air from entering the unit when the Furnace / Air handler is running and the unit is in Standby, OFF or in Recirculation.

Installation Options for High-Rise Condominium Fully Ducted System

With Fan-Coil ·Fresh air from outside should be installed on

System

Fan-coil supply side (HRV/ERV station #2)

and HRV/ERV should be interlocked with

Fan-coil unit.

HRV/ERV
Filter box

Balancing Box (recommended air filter for auto balancing unit to prevent dust build-up on air flow sensors)
FRESH AIR EXHAUSTED AIR

Fan-col unit
HRV/ERV Filter box

Mounting Brackets

Note:
· All Exhaust Vents must be installed
min. 5 ft away from sidewalls.
Note: All HRV / ERV must be balanced in the field.

Insulated ductwork

Filter box FB-100

Drywall Bulkhead

Access door

Minimum 24" x 12" access door required for filter cleaning &
replacement

HRV and ERV Typical Installations (cont'd)

HORIZONTAL
· 32" clearance is recommended for cleaning of the core/servicing the unit. (use appropriate access door size)
· Dampers are installed for horizontal installation. For vertical installation both dampers have to be turned so they can open properly and close when there is any backdraft.
· Make sure no screw will interfere the function of the backdraft damper flaps while installing the duct work to the HRV/ERV.

Concrete

Wooden Joist

Concrete

Flap
120V Motorized Spring Return Backdraft Damper
Backdraft Damper VERTICAL

Flap

C Bracket (Optional)

Backdraft Damper

STRAPPING SYSTEM: (optional) Allows one person installation for vertical and horizontal installation.

Grommet

Screw

Washer
Screw*

NOT SUPPLIED* Chain* Washer*

PULL DOWN

Strap

B
UP UP

A
120V Motorized Spring Return Backdraft Damper

Backdraft

Damper

Series Model#

Vibration Spring*
A BC

Mini

RERV-80, RHRV-80P

161/2" 161/2"

81/2"

Compact

RERV-C100, RHRV-C100P, RHRV-C100A

20"

21"

91/4"

New

RERV-C100 NF RHRV-C100P NF

20"

21"

Note:

Maxum
New New

RERV-S200, RHRV-S200P, RHRV-S200A
RHRV-130P ES
RHRV-120P ES

23"

121/4"

23"

211/2"

121/2"

23"

211/2" 101/4"

· After installation make sure the HRV/ERV is properly leveled. If not levelled correctly, then defrost will not perform effectively and/or unit may frost in winter.

jtantay 12.23.11

CHAIN MOUNTING SYSTEM: (optional)
Available for both horizontal & vertical installation.

HRV and ERV Typical Installations (cont'd)

Typical Installations of Single Vents & Access door

Intake
Insulation Wallbox
Grille Backdraft Damper

CAULKING GRILLE
- 3 SIDES ONLY, NOT ON BOTTOM
Exhaust

Metal Clamp Insulation
Duct

CAULKING WALLBOX
- CAULK WALLBOX TO STRUCTURE ON ALL 4 SIDES

Minimum 5 Feet

Distance

*Re - Circulation Efficiency

"X"

If distance "X" is 5ft - 99.7%

"Single Vents Only"

"X" is 3ft - 96.5%

Insulation

Note:
-Fresh air intake and supply duct must be totally insulated. Exhaust duct must be 5 feet insulated from the wall. In colder climate, it is recommended to insulate all exhaust and supply ducts.

-Check your building code for Insulation requirement

Access Door
-Use appropriate access door size and install on proper location for easy access to all HRV/ERV components for routine check and maintenance of the unit. For more info visit http://www.reversomatic.com/HRV&ERV/Accessories

Drain Connection

During defrost cycle the HRV unit may produce some condensation and the water should flow into a nearby drain. The HRV cabinet has pre-punched holes(two on side and one on the door) for the drain, in order to keep the drain pan intact, hand tighten the plastic drain spout to the unit using the gasket and nuts.

For Vertical installation

Cut two sections of ½" drain pipe and connect the other ends to the drain spout then connect to "T" connector. Connect a drain line and create a P-trap to prevent the unit from unpleasant odours from drain source. Tape or fasten base to avoid
any bends.

(For vertical installation)

Drain Pan
Drain Spout ½" I.D.
Drain Pipe " T " Connector

Drain Pan "P" Trap

Drain Spout Assembly

Plastic Drain Pan

Rubber washer

HRV/ERV Steel Housing

Lid

Steel washer

Zip Tie

to Drain

Nut Drain Spout

Note:

- For Horizontal installation,

connect only 1 drain spout assembly on lid / door.

cut one ½'' drain pipe and connect one end to the drain spout and the other Use this drain for

end to the drain line. Don't forget to create a P-trap as shown above.

horizontal installation

- HRV must be connected to drain.

- ERV does not required any drain. However,

we recommend to connect ERV to drain in areas where extreme cold weather conditions are expected.

! CAUTION !
The HRV and all condensate lines must be installed in a space where the temperature is maintained above the freezing point or freeze protection must be provided.

Air Flow Balancing

Balancing Procedure
It is required to have balanced air flows in an HRV/ERV. The volume of air brought in from the outside must equal the volume of air exhausted by the unit while running at normal speed. If the air flows are not properly balanced, then:
· The HRV/ERV may not function at its maximum efficiency · A negative or positive air pressure may occur in the house or condo · The unit may not defrost properly
Prior to balancing, ensure that:
1. All the HRV/ERV's components are in place and functioning properly. 2. All sealing of the ductwork system has been completed. 3. Set the unit to normal speed. 4. Air flows in branch to specific areas of the house should be adjusted first prior to balancing the unit. 5. After taking reading of both the stale air to the HRV/ERV duct and fresh air to the house duct, the duct with
the lowerCFM reading should be left alone while the duct with the higher airflow should be slower down to match the lower 6. reading by adjusting dial/speed controller on control board(see board layout on page-6). Return unit to appropriate fan speed for normal operation.
Pitot Tube Airflow Balancing

The following is a method of field balancing an HRV/ERV using a Pitot tube advantageous in situations when flow stations are not installed in the ductwork. Procedure should be performed with the HRV/ERV on normal speed.
The first step is to operate all mechanical systems on most desire speed, which have an influence on the ventilation system, i.e.the forced air furnace or air handler if applicable. This will provide the maximum pressure that the HRV/ERV will need to overcome, and allow for a more accurate balancing of the unit.
Drill a small hole in the duct (about 3/16"), three feet downstream of any elbows or bends, and one foot upstream of any elbows or bends. These are recommended distances but the actual installation may limit the amount of straight duct.

Pitot tube and gauge

Duct

AIR FLOW

High

Pressure

Tap

Pitot tube

Magnehelic gauge

Low Pressure Tap

The Pitot tube should be connected to a magnehelic gauge capable of reading from 0 to 0.25 in. (0-62 Pa) or other digital airflow meter. The tube coming out of the top of the pitot is connected to the
high pressure side of the gauge/meter and the tube coming out of the side of the pitot is connected to the low pressure or reference side of the gauge/meter.

NOTE:
Place the magnehelic gauge on a level surface and adjust it to zero.

Insert the pitot tube into the duct; pointing the tip into the airflow. For general balancing it is sufficient to move the pitot tube around in the duct and take an average or typical reading. Repeat this procedure in the other duct. Determine which duct has the highest airflow (highest reading on the gauge). Then slower down that motor speed
by adjusting dial/speed controller on control board to match the lower reading from the other duct. The flows should now be balanced. Actual airflow can be determined from the gauge/metre reading. The value read on the gauge is called the velocity pressure and on the flow meter is called air velocity(FPM). The Pitot tube comes with a chart that will give the air flow velocity based on the velocity pressure indicated by the gauge. This velocity will be in either feet per minute or metres per second. To determine the actual airflow, the velocity is multiplied by the cross sectional area of the duct being measured.

Air Flow Balancing (cont'd)

Note:(Option #2)
*For balancing, extension box cover plate is provided with 3 holes on supply side and 3 holes on exhaust side. *Do not use pitot tube to open holes in the insulation as it may block/damage the pitot tube. *Take 3 readings on each hole and average all 9 readings for supply and same for exhaust. *After finish balancing, plug all six holes with plastic plugs provided with the unit.
#3

DUCTDIAM. CROSSSECTIONAREA

0.136 sq. ft.

0.196 sq. ft.

P"=VelocityPressureininch

P"
Ø5" Ø6" 0.010 0.004 0.012 0.006 0.016 0.008 0.022 0.010 0.027 0.013 0.034 0.016 0.041 0.020 0.048 0.023 0.057 0.027

CFM
50 60 70 80 90 100 110 120 130

Min 3 ft straight duct #1

Pitot tube

Motors for NF Series

Remove plug while balancing

Pitot tube
Min 3 ft straight duct

Magnehelic gauge
(option #1)
Remove plug while balancing

Note: To take more accurate readings, use option #1(if possible). CFM = Opening / Cross-sectional Area(sq.ft.) x velocity(FPM)
The accuracy of the flow reading will be affected by how close to any elbows or bends the readings are taken. Accuracy can be increased by taking an average of multiple readings as outlined in the literature with the Pitot tube.

Field Airflow Balancing for House (using balancing ports)

StaleAir From Home

Balancing Table

Exhaust Supply (High) (High)

Core/Heat Exchanger

FreshAir From Outside

5"Collar

FreshAir To Home

Supply

(Low)

Drain

StaleAir To Outside

Exhaust

+ -

(Low)

Manometer

NOTE: Make sure to plug back all holes after balancing.

Field Airflow Balancing for House (Cont'd)

Model: RERV-80 (Mini)

Differential Pressure Across the Core

In.W.C. Pa

0.06

0.09

0.12

0.15

0.18

0.21

0.24

0.27

0.30

0.33

0.36

0.42

104

0.48

119

0.53

131

0.57

Supply Air

CFM

L/s

Exhaust Air

CFM

L/s

Model: RHRV-80P (MINI)

Differential Pressure Across the Core

In.W.C. Pa

0.03

0.06

0.09

0.12

0.15

0.18

0.21

0.27

0.30

0.36

0.42

104

0.48

119

0.53

131

0.57

141

0.60

149

Supply Air

CFM

L/s

Exhaust Air

CFM

L/s

100

Model: RHRV-C100P (Compact)

Differential Pressure Across the Core

In.W.C. Pa

0.03

0.06

0.09

0.12

0.15

0.18

0.21

0.24

0.27

0.36

0.42

104

0.48

119

0.55

136

Supply Air

CFM

L/s

Exhaust Air

CFM

L/s

100

104

112

120

129

Model: RERV-C100 (Compact)

Differential Pressure Across the Core

In.W.C. Pa

0.03

0.06

0.09

0.12

0.15

0.18

0.21

0.24

0.27

0.30

0.33

Supply Air

CFM

L/s

109

Exhaust Air

CFM

L/s

108

119

Model: RHRV-C100A (Compact)

Differential Pressure Across the Core

In.W.C. Pa

0.03

0.04 10

0.06 15

0.08 20

0.10

0.12

Supply Air

CFM L/s

Exhaust Air

CFM L/s

0.15

102

0.18

102

112

0.21

114

118

0.25

62 123

128

0.27

67 129

Model: RHRV-130P ES

Differential Pressure

Across the Core

In.W.C. Pa

0.03

0.06

0.09

0.105

0.12

0.135

0.15

0.165

0.18

0.195 49

0.21

0.24

0.27

0.30

0.33

0.36

Supply Air

CFM L/s

118 56

133 63

151 71

158 75

173 82

Exhaust Air

CFM L/s

102

115

128

142

156

163

170

Maintenance

Regular Maintenance
1. Turn the unit off and disconnect the power supply. 2. Unlatch the door and lift the door panel towards you, hold itfirmly and slide it to the left. 3. Clean the inside of the door and drain pan with a damp cloth to remove dirt and debris
that may be present. 4. Clean the filters (twice a year)
-Remove thefilters. - Vacuum to remove most of the dust. - Wash with a mixture of warm water and mild soap. Rinse thoroughly and shakefilters
to remove water and let dry.
5. Check the exterior fresh air supply hood: - Make sure there are no leaves, twigs, grass, ice or snow that could be drawn into the vent. Partial blocking of this air vent could cause the unit to malfunction.
6. Reassemble the components, Filters and Door (The door is secured when you hear a click.)
7. Reconnect the power and turn on the unit.

Annual Maintenance

Repeat steps 1 to 5 from the previous section and continue with the following steps:

1. Clean the HRV and ERV core: - Removefilters - Loosen the core locking bracket - Remove the core, carefully grip ends of core and pull
evenly outward - HRV Core > remove dust using vacuum cleaner or
rinse with cold water > Soak and rinse the HRV core in warm
soapy water - ERV Core > remove dust using vacuum cleaner
2. Motors -Maintenance Free, permanently lubricated

! ATTENTION !
Do not use cleaning solution for the HRV/ERV core Do not use pressure washer on the HRV/ERV core Do not place the HRV/ERV core in dishwasher Do not use bleach or chlorine

3. Drain Tube and Drain Pipe -Inspect drain tube, drain pipe and"P"trap for blockage, mold or kinks. Flush with warm soapy water and replace if worn, bent or unable to clean.

4. Clean Duct Work if Required -Wipe and vacuum the duct once every year.The duct work running to and from HRV/ERV may accumulate dirt.You may wish to contact a heating / ventilation company to do this.

5. Cleaning the Fans -
HRV/ERV.Areduction in the airflow may also occur. In new construction this may result within thefirst year due to heavy dust and may occur periodically after that over time depending on the outdoor conditions.
unplug the HRV/ERV open the service door remove the core disconnect the fan motor wires
remove the screws securing fan assembly pull the fan assembly out of unit check for any accumulation on the blades clean with a small brush if necessary:
- scrub individual fan blades until clean - vacuum and wipe put the components back in place
reconnect the power supply and turn the unit back on.

! WARNING !
Electrical shock hazard. Can cause injury or death. Before attempting to perform any service or maintenance, always disconnect the unit from its power source.

Note: Warranty will be void if regular/annual Maintenance is not performed as recommended and instructed above.

Troubleshooting

PROBLEMS
1.Airflow is low
2. Senses cold air from Supply

POSSIBLE CAUSES
- HRV/ERV airflow improperly balanced
- filter clogged - core obstructed - exterior fresh air supply blocked - damper is closed (if supplied) - ductwork is restricting - power supply low (Low Voltage)
- Exhaust hood outside the house is blocked
- HRV/ERV airflow improperly balanced
- outdoor temperature is extremely cold

SOLUTIONS
- have professional balancer or contractor balance the unit
- remove and cleanfilter - remove and clean core - remove and clean the blockage - check damper - inspect duct installation - switch off the unit immediately and
call the electrician to check the voltage
- remove the blockage and clean the hood
- have contractor balance the unit - placement of furniture or closed
doors is restricting the movement of air in the home - install a duct heater

3. Water in the bottom of HRV

- drain pans, drain tube, drain pipe and"P"trap are clogged

4.Timer switch 20/40/60 minute / intermittent Switch light doesn't stay on
5. Unit is not defrosting properly
6.All 3 LEDs of timer switch blinks
7. LED's on the Main Control board and the remote wall mountTimer Switch willflash 0.5 second On then 2 seconds Off then repeat the cycle
8. LED's on the Main Control board and the remote wall mountTimer Switch willflash 0.5 sec On/0.5 sec Off/0.5 sec On then 2 sec Off, then repeat the cycle
9. LED's on the Main Control board and the remote wall mountTimer Switch willflash 0.5 sec On/0.5 sec Off/0.5 sec On/0.5 sec Off/ 0.5 sec On, then 2 seconds Off, then repeat the cycle
10. LED's on the Main Control board and the remote wall mountTimer Switch willflash 0.5 sec On/0.5 sec Off/0.5 sec On/0.5 sec Off/ 0.5 sec On/0.5 sec Off/0.5 sec On then 2 seconds Off, then repeat the cycle
11. LED's on the Main Control board and the remote wall mountTimer Switch willflash: 0.5 sec On/0.5 sec Off/ 0.5 sec On/0.5 sec Off/ 0.5 sec On/0.5 sec Off/ 0.5 sec On/0.5 sec Off/ 0.5 sec On/0.5 sec Off/ 0.5 sec On, then 2 seconds Off, then repeat the cycle

- loose connection - the switch may be defective - turn off the H R V / ER V bracker - fresh air duct maybe frozen - HRV/ERV airflow improperly
balanced -Temp. sensor maybe defective - Control board reports error - lost communication with main
control board - Exhaust fan open circuit:
a) motor burned b) fan overheated
- damper obstructed
- exhaust fan jam / over-current
- Supply fan open circuit: a) motor burned b) fan overheated
- damper obstructed
- Supply Fan jam / over-current
- temperature sensor failure (both motors shuts off)

- check for blockage and for kinks in line
- check connections - make sure water drains properly - check connection - replace the timer switch - reset the main controller - check and remove the ice - have professional balancer or
contractor balance the unit - replace theTemp. sensor - refer to problem 4. - check all wire connections on timer
switch and main control board
- replace motor - call technician (if possible replace
fan)
- check backdraft damper, no screw must interfere the function of the damper
- replace the fan
- replace motor - call technician (if possible replace
fan)
- check back-draft damper, no screw must interfere the function of the damper
- replace the fan
- replace temperature sensor

Note :- Lightning, high power surge or high frequency radio signals could cause HRV/ERV goes into safe mode (unit completly shu
timer switches blinks either two or four times in a raw every 0.5 seconds). If this happens, turn"off"the main power of the HRV/ERV and restart the unit. If still unit does not come on, please call service technician.

Notes:-

18
4 Pine Street, Toronto, ON Canada M9N 2Y8 Tel: 416-247-0045 Fax: 416-247-2012 www.ontarioheatingltd.com info@ontarioheatingltd.com

References

mailto:info@ontarioheatingltd.com

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