Field Controls FC155HRV, FC200HRV, FC150ERV Operation And Installation Manual

69-Field

0412

Heat Recovery Ventilators

Operation and Installation Manual

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.

*

FC95HRV*

FC155HRV

FC200HRV*

FC150ERV

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Getting to Know your Heat and Energy Recovery Ventilator
Ventilation and Control Options

How the Dehumidistat Works (Colder Climates)
Glossary and Additional Information

Warranty........................................................................................3

Healthy Home System™ Control (HHSC)

Dehumidistat .................................................................................4

Dehumidistat Ventilation Control .................................................5

Optional Vent Timer Control ........................................................6

Maintenance Routine for HRV .....................................................7

Technical Data - Model FC95HRV ...........................................8-9

Technical Data - Model FC155HRV ..........................................10

Technical Data - Model FC200HRV ..........................................11

Technical Data - Model FC150ERV...........................................12

Installation Methods....................................................................13

Installation Diagrams.............................................................14-16

Installation

Suspend the Unit with the Adjustable Hanging Straps ...............17

Drain Connection and Grilles .....................................................18

Weatherhood Installation ............................................................19

Installation of the Dehumidistat or

Dehumidistat Ventilation Control ...............................................20

Installation and Operation of 20 Minute and

20/40/60/ Minute Timers.............................................................21

Installation of the Healthy Home System Control (HHSC) ..22-23
Installation of the HHSC with the DH1

and 20/40/60 Minute Timers (test a)...........................................24

Installation of the DHVC Ventilation Control

with 20/40/60 Minute Timers (test c)..........................................25

Interlocking HRV/ERV to an Air Handler/Furnace Blower
Setting “Standby” when using a Main Control
Operating the HRV/ERV without a Main Control and

Adding Dry Contacts..................................................................26

Balancing the Air Flows..............................................................27

Balancing the Air Flows with a Pitot Tube.................................28

Air Flow Balancing using the Door Ports ...................................29

Balancing Dampers .....................................................................30

Troubleshooting your HRV/ERV System...................................31

Wiring Diagram ..........................................................................32

2

Table of Contents

IMPORTANT -

PLEASE READ THIS MANUAL

BEFORE INSTALLING UNIT.

CAUTION

Before installation, careful consideration must be
given to how this system will operate if connected
to any other piece of mechanical equipment, i.e. a
forced air furnace or air handler, operating at a
higher static. After installation, the compatibility of
the two pieces of equipment must be confirmed, by
measuring the air flows of the HRV, by using the
balancing procedure found in this manual.
NEVER install a ventilator in a situation where its
normal operation, lack of operation or partial
failure may result in the backdrafting or improper
functioning of vented combustion equipment.

WARNING

• Disconnect the power from the unit before
cleaning or servicing.

• To prevent electrical shock, 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 for switching.
Use either a voltmeter or test lamp to confirm the
absence of a voltage between the disconnect
switch and ground (on the cabinet) while the door
is open. This procedure must be followed, as
dwellings are occasionally wired improperly.
Always enure the proper grounding of the unit.

ATTENTION

• Do not apply electrical power to the unit until after
the completion of the installation (including the
installation of low voltage control wiring).

• Ensure the Installation and wiring is in
accordance with CEC, NEC, and local electrical
codes.

• Due to ongoing research and product
development, specifications, ratings, and
dimensions are subject to change without notice.

• Plug the unit into a standard designated (120
VAC) electrical outlet with ground.

•The use of an extension cord with this unit is not
recommended. If the installation requires further
wiring, have a licensed electrician make all of the
electrical connections. The recommended circuit is
a separate 15 amp/120 volt circuit.

NOTE

• Due to ongoing research and product

development, specifications, ratings, and

dimensions are subject to change without notice.

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3

Thank you for purchasing a Field Control Heat/Energy Recovery
Ventilator (HRV/ERV). The HRV/ERV provides fresh air to your
home while recovering energy from the air it exhausts.
There are numerous benefits to a properly installed, operated, and
maintained HRV/ERV:

• Exhausts the stale, contaminated air, found in today’s tight
buildings.

• Recovers the majority of the energy contained in the exhausted
stale air.

• Uses the recovered energy to preheat or precool the fresh outdoor
air introduced into the house

• Distributes the fresh air throughout your home.

Getting to Know your Heat and Energy Recovery Ventilator (FC Series)

Optional Controls are available to adjust the amount of ventilation
in your home:

• The Healthy Home System™ Control (HHSC) will automatically
deliver fresh air to your home.

• The Dehumidistat Control (DHI) can be used in conjunction with
the HHSC to provide additional ventilation for high indoor
humidity levels.

• The Dehumidistat Ventilation Control (DHVC) is a manual
control which features ON/OFF, High speed, Low Speed, and an
electronic dehumdistat.

*Refer to the individual control pages of this manual for more
information about these controls.

Ventilation and Control Options*

High indoor humidity levels, during the heating season, have
become a problem in many well insulated, tight homes. Excessive
condensation on the windows is a visual sign of high indoor
humidity levels. High indoor humidity levels can result in mold and
mildew and the eventual degradation of the building structure itself.

Your HRV/ERV reduces indoor humidity levels when the
outdoor air is drier than the indoor air. These conditions usually
occur during the heating season when outdoor temperatures are less
than 15°C (59°F). During the heating season, the operation of the
HRV/ERV may reduce indoor humidity levels sufficiently to
eliminate the need for further dehumidification.

If your home requires further dehumidification, use the
dehumidistat feature located on any optional main control (refer to
the Operation and Installation Manual for Optional Control
information). This feature aggressively addresses high indoor
humidity levels by initiating high speed ventilation when the indoor
humidity levels rise above the adjustable set point on the control.

Refer to the main control instructions located in the Operation and
Installation Manual for instructions on how to set the dehumidistat.
The dehumidistat function on the main control should be set to OFF
for all seasons except the heating season, because a dehumidifying
effect occurs only when the outdoor air is dryer than the indoor air.
Set the RH level to 80 to turn the dehumidistat OFF. (Refer to the
control instructions for information on how to set the
Dehumidistat).
DEHUMIDISTAT DISABLE - automatically disables the
dehumidistat function on the main control when outdoor
temperatures exceed 15°C (59°F) for a full 24 hour period. All other
HRV features and functions operate normally while the
dehumidistat function is disabled.
DEHUMIDISTAT RE-ENABLE - automatically re-enables the
dehumidistat function if either the outdoor temperature drops below
15°C (59°F) for a full 24 hour period or if the HRV is reset
(unplugged for 30 seconds).

How the Dehumidistat Works (Colder Climates)

DEFROST MODE - To ensure reliable operation during cold
weather, the HRV automatically cycles through its defrost mode
when the outdoor temperatures drop below freezing.

HRV/ERV - a Heat Recovery Ventilator (HRV/ERV) is designed
to provide fresh air into a building while exhausting an equal
amount of stale air. During the winter months, heat recovered from
the stale air, before it is exhausted to the outdoors, warms the
incoming cold fresh air. During the summer months, when the
indoor space is air conditioned, the HRV/ERV helps to cool the
incoming fresh air with the cool exhausted stale air.

SELF-TEST - Each time the HRV/ERV is powered/energized, the
self-test function automatically initiates. The HRV/ERV cycles
through the available speeds and tests the damper motor operation.
The HRV/ERV defaults back to the previous operational mode and
speed selection after the self-test (approximately 60 seconds in
duration).

STANDBY - The HRV/ERV is powered/energized and waiting for
ventilation to be initiated by an external control.

TIMERS - These optional controls may be installed at specific
exhaust locations (bathrooms etc.) to initiate high speed ventilation.

Heat Recovery Ventilators (HRV) carry a Lifetime Warranty on the
heat recovery core and a 5 (five) year replacement parts warranty.
Energy Recovery Ventilators (ERV) carry a 5 (five) year warranty

on the energy recovery core and a 5 (five) year replacement parts
warranty.

Glossary and Additional Information

Warranty

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Your HRV/ERV system produces a dehumidifying effect when
outdoor humidity levels are lower than indoor humidity levels.
These conditions occur normally when outdoor termperatures are
below 60°F. An additional dehumidification effect is achievable
with the Optional Dehumidistat (Part DH1).

The Optional DH1 Control may be combined with the Healthy

Home System Control (HHSC). The DH1 will initiate high speed

ventilation when the moisture level in the home exceeds the set

point on the control. Once the humidity in the house is reduced,

the HRV will revert back to the HHSC automatic setting. The

Dehumidistat should be set to OFF for all seasons except the

heating season.

Dehumidistat (Part DH1)

Healthy Home System Control (HHSC)







Dehumidistat Indicator
LEDs

Set to the desired humidity
level. High speed ventilation
will initiate when the indoor
moisture level exceeds the set
point on the control.

Dehumidistat
Adjust button

Th e H ea lt hy Home Sy st em Control ( HHSC) a ct iv at es th e
HRV/ERV automatically to deliver fresh air into your home.

Setting the Control

The duration of the ventilation rate is adjustable on the HHSC.
Your installer sets up this control during the installation of your
system . Refer to the instructions that came with the HHSC for the
setup information.

The Healthy Home System™ Control (HHSC)

4

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The Dehumidistat Ventilation Control offers ON/OFF, High
Speed/Low speed plus an electronic dehumidistat.

Key Features

• 2 Speed Fan setting (Low/High)

• Electronic Dehumidistat

• Instruction Card is inserted in the control

• Slim-line design

• Connect to 3 wire 20 gauge low voltage wire.

Turning on the Control

Press and release the ON/OFF button. The "ON Indicator Light"
will illuminate.

Adjusting the Ventilation Speed

The unit will normally operate at low speed. Press and release the
SPEED button to initiate high speed ventilation. The "High Speed
Indicator LED" will illuminate.

Humidity Control

Your unit will produce a dehumidifying effect when outdoor
humidity levels are lower than indoor humidity levels. Never use
the dehumidistat feature when outdoor temperatures are above
59° F (15° C).

Setting the Dehumidistat

Press and r el ease t he D EHUMIDI ST AT b ut ton until t he
DEHUMIDISTAT LED is at the desired setting. After 5 seconds
the dehumidistat light will either flash or be on continuous.

A flashing light indicates the humidity level is higher than the
setting and the unit is operating on high speed ventilation. A
continuous light indicates the humidity level is lower than the
setting.

5

The Dehumidistat Ventilation Control Part #DHVC



















Instruction card

Dehumidistat
Indicator LEDs

ON/OFF
button

High/Low
Speed
button

High Speed
Indicator LED

On
indicator
light

*Install a jumper between 2 (ON) and 3 (RED) on the
HRV/ERV terminal block to configure the ON/OFF
button to ON/STANDBY. Refer to “Setting Standby
when using a Main Control” in this manual.

ATTENTION

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The timer will override the Operational Mode (regardless of the
setting) and initiate high speed ventilation. Upon completion of the
timer cycle, the HRV/ERV returns to your selected Operational
Mode and speed setting.

Lifestyle 20/40/60 Minute Timer

Initiates high speed ventilation for 20, 40 or 60 minutes. The
20/40/60 Minute Status Lights indicate high speed operation.

Lockout Mode is useful if you wish to disable the timer. Set
lockout by holding the Select Button for 5 seconds. Unlock by
holding for 5 seconds.

Optional Vent Timer Control (VTC)

Select Button

20/40/6 0 Mi nu te
Status Lights

If the system does not have a main control

installed, the HRV/ERV Terminal Block must have

a jumper installed between 2 (ON) and 3 (RED).

Refer to “Operating the HRV/ERV without a Main

Control” in this manual.

ATTENTION

6

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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).

WARNING: Blockage of hoods may cause an imbalance.

2. Clean Air Filters (clean twice a year)

The standard filters equipped with your HRV are removable 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

Note: 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) mo unt t he left or right s id e fla ng e of th e cor e 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 centre of the core until the core stops on the
back of the cabinet.

NOTE: Core will appear to stick out from cabinet approximately 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, mould or
kinks. Flush with warm soapy water and replace if worn, bent or
unable to clean.

6. Clean Duct Work if Required

The duct work running to and from the HRV may accumulate 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 oc cur periodically after that ov er time

depending on the outdoor conditions.

• unplug the HRV and open the service door

• remove the core

• remove ducting (metal and/or flexible insulated type) from
the red and/or blue ports which are connected immediately
in-line with the fan assembly

• use a small brush, such as an old toothbrush or pipe cleaner,
and insert first

(a) through the lar ge o pe ning of the fan

assembly and then

(b) through the sma ll er o pening in the end

of the fan assembly.

• scrub individual fan blades until clean. 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 be given to having a
qualified service technician complete the service work.

Maintenance Routine for HRV

Electric shock hazard. Can cause
injury or death. Before attempting to
perform any service or maintenance,
turn the electrical power unit OFF at
disconnect switch(es). Unit may have
multiple power supplies.

WARNING

7

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THERMALLY CONDUCTIVE, PATENTED ALUMINUM CORE

The cross-flow heat recovery core transfers heat between the two
airstreams. It is easily removed for cleaning or service.

MOTORS AND BLOWERS

Each air stream has one centrifugal blower driven by a common PSC
motor. The unit has a 2 speed fan operation.

FILTERS

Washable air filters in exhaust and supply air streams.

MOUNTING THE HRV

Four threaded inserts at corners of the cabinet designed to accept the “S”
hooks and hanging straps supplied with the unit.

DEFROST

Recirculating defrost system.

CASE

Twenty gauge prepainted galvanized steel (G60) for superior corrosion
resistance. Insulated to prevent exterior condensation. Drain connections
2 - 1/2" (12 mm) OD.

WEIGHT 52 lbs. (23.6 kg) SHIPPING WEIGHT 56 lbs (25.4 kg)

ELECTRONICS

• Built-in Relay for Interfacing to furnace

OPTIONAL CONTROLS

# DHVC Ventilation Control

• 2 Speed Fan setting (Low/High) • Dehumidistat

#HHSC Healthy Home System Control

• Automatically activates the unit to deliver fresh air into your home

#DH1 Dehumidistat

• Initiates high speed ventilation when the indoor humidity level exceeds
the set point

OPTIONAL TIMERS

#VTC Ventilation Timer Control - Initiates high speed ventilation

for 20, 40, or 60 minutes, (3 wire) 20 gauge wire (min.) 100'
length

OPTIONAL ACCESSORIES

#WH 185 Weatherhoods, Two - 5” (125 mm) c/w 1/4” (6 mm) mesh

screen

WARRANTY

Units carry a LIFETIME warranty on the
heat recovery core and a 5 year
replacement parts warranty.

All units conform to CSA and UL standards.

Date: ___________________________________________

Tag: _____________________Qty:___________________

Project: _________________________________________

Engineer: _______________________________________

Contractor: ______________________________________

Supplier: ________________________________________

Quote#: _________________________________________

Submitted by: ____________________________________

*Sensible Efficiency – thermal **Latent Efficiency – moisture

Note: Effectiveness - based on temp. differential between the 2 airstreams
Efficiency – takes into account all power inputs

Performance (

HVI certified)

N

et supply air flow in cfm (L/s) against external static pressure

E

.S.P

(external static pressure) [cfm (L/s)]

@

0.1" (25 Pa) 76 (36)

@

0.2" (50 Pa) 73 (34)

@ 0.3" (75 Pa) 70 (33)

@ 0.4" (100 Pa) 66 (31)

@ 0.5" (125 Pa) 60 (29)

Max. Temperature Recovery 88%

Sensible Effectiveness
@ 60 cfm (28 L/s) 32°F (0°C) 88%

*Sensible Efficiency
@ 60 cfm (28 L/s) 32°F (0°C) 75%

*Sensible Efficiency
@ 61 cfm (29 L/s) -13°F (-25°C) 68%

VAC @ 60HZ 120

WATTS / Low speed. 59

WATTS / High speed 150

Amp rating 0.9

Static Press ure (in w.g.)

Air Flow (cfm)

Speed 2

Speed 1

20

30

40

50

60

70

0 0.1 0.2 0.3 0.4 0.5 0.6

80

1 - Low Speed

2 - High Speed

Removable

Heat Recovery

Core

Drain Pan

Drain spout

FRONT TOP

minimum

18 inches (4 59 mm)

required for

service a ccess

Threaded
inserts ( 4)
at corners

SUPPLY

Fresh air

from outside

5" round col lar

SUPPLY

Fresh air

to building

6" round

(conv. to oval)

collar

EXHAUST

Stale Air

to outside

5" round col lar

EXHAUST

Return air

from building

6" round (co nv. to oval)

collar

18.5"

(470 mm)

18.5"

(470 mm)

16"

(406 mm)

SIDE

Hanging

straps (4)

24.5"
(622 mm)

DIMENSIONS FC95HRV inches (mm)

Model FC95HRV

8

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Port Configuration and Airflow Model FC95HRV

In order to make the HRV as space efficient as possible, the
INDOOR supply and return ports are converted from round to oval
shape. Overall size of the port remains the same. Simply bend a
standard duct fitting to the correct shape, and attach to the oval
port using the same method as for a round port.

FC95HRV Air Flow

Stale air enters the FRONT-RIGHT side port. The air passes down

the front half of the core, then up the back half of the core and out

the RIGHT-REAR port.

Fresh outdoor air enters the LEFT-REAR port and passes down

the back half of the core. Then the fresh outdoor air passes up the

front half of the core and out the LEFT-FRONT port. This

configuration allows the air to actually travel through the core

twice, which makes the FC95HRV nearly as efficient as a double

core unit.

Round port bent to oval

9

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THERMALLY CONDUCTIVE, PATENTED ALUMINUM CORE

The cross-flow heat recovery core transfers heat between the two
airstreams. It is easily removed for cleaning or service.

MOTORS AND BLOWERS

Each air stream has one centrifugal blower driven by a common PSC
motor. 2 speed fan operation.

FILTERS

Washable air filters in exhaust and supply air streams.

MOUNTING THE HRV

Four threaded inserts at corners of the cabinet designed to accept the “S”
hooks and hanging straps supplied with the unit.

DEFROST

Recirculating damper defrost system.

CASE

Twenty gauge prepainted galvanized steel (G60) for superior corrosion
resistance. Insulated to prevent exterior condensation. Drain connections
2 - 1/2" (12 mm) OD. Balancing ports are located in the door.

WEIGHT 71 lbs. (32.5 kg) SHIPPING WEIGHT 73 lbs. (33.5 kg)

ELECTRONICS

• Built-in Relay for Interfacing to furnace

OPTIONAL CONTROLS

# DHVC Ventilation Control

• 2 Speed Fan setting (Low/High) • Dehumidistat

#HHSC Healthy Home System Control

• Automatically activates the unit to deliver fresh air into your home

#DH1 Dehumidistat

• Initiates high speed ventilation when the indoor humidity level exceeds
the set point

OPTIONAL TIMERS

#VTC Ventilation Timer Control - Initiates high speed ventilation

for 20, 40, or 60 minutes, (3 wire) 20 gauge wire (min.) 100'
length

OPTIONAL ACCESSORIES

#WH 186 Weatherhoods, Two - 6” (150 mm) c/w 1/4” (6 mm) mesh

screen

DIMENSIONS FC155HRV inches (mm)

Model FC155HRV

All units conform to CSA and UL standards.

Date: ___________________________________________

Tag: _____________________Qty:___________________

Project: _________________________________________

Engineer: _______________________________________

Contractor: ______________________________________

Supplier: ________________________________________

Quote#: _________________________________________

Submitted by: ____________________________________

*

Sensible Efficiency – thermal **Latent Efficiency – moisture

Note: Effectiveness - based on temp. differential between the 2 airstreams
Efficiency – takes into account all power inputs

Performance (HVI certified)

Net supply air flow in cfm (L/s) against external static pressure

E.S.P

(

external static pressure) [cfm (L/s)]

@

0.1" (25 Pa) 144 (68)

@

0.2" (50 Pa) 134 (63)

@ 0.3" (75 Pa) 125 (59)

@ 0.4" (100 Pa) 113 (53)

@

0.5" (125 Pa) 92 (43)

@ 0.6" (150 Pa) 73 (34)

Max. Temperature Recovery 78%

Sensible Effectiveness
@

65 cfm (31 L/s) 32°F (0°C) 73%

*Sensible Efficiency
@ 65 cfm (31 L/s) 32°F (0°C) 64%

*Sensible Efficiency
@ 68 cfm (32 L/s) -13°F (-25°C) 66%

VAC @ 60HZ 120

WATTS / Low speed. 49

WATTS / High speed 120

Amp rating 1.4

2

1

20

40

60

80

100

120

140

160

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7

Static Pre ssur e (in w .g.)

Air Flow (cfm)

2 - High Speed
*

1 - Low speed

*

Manufacturers Data

WARRANTY

Units carry a LIFETIME warranty on the heat
recovery core and a 5 year replacement parts
warranty.

BA LANC ING DA MPE R

33 5/8"

(850mm)

STALE AIR

FROM INSIDE

FRESH AIR

FROM OUTSIDE

STALE AIR

TO OUTSIDE

FRESH AIR

TO INSIDE

14 3/4"

(375)

19"

(48 3)

*All Duct Connec tions 6" ( 150mm)

CO NDEN SATE DR AIN S

FI LTE RS

BL OWER S

*NO TE: Fro nt cle aran ce of 25 inch es (6 35 mm)

is r ecom mend ed for s ervi cing u nit.

RE CIRC ULATI NG

DE FROS T

DAM PER

MOT OR

CO RE

BA LANC ING DA MPER

10

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DIMENSIONS FC200HRV

inches (mm)

Model FC200HRV

All units conform to CSA and UL standards.

THERMALLY CONDUCTIVE, PATENTED ALUMINUM CORE

The cross-flow heat recovery core transfers heat between the two
airstreams. It is easily removed for cleaning or service.

MOTORS AND BLOWERS

Each air stream has one centrifugal blower driven by a common PSC
motor. 2 speed fan operation.

FILTERS

Washable air filters in exhaust and supply air streams.

MOUNTING THE HRV

Four threaded inserts at corners of the cabinet designed to accept the “S”
hooks and hanging straps supplied with the unit.

DEFROST

Recirculating damper defrost system.

CASE

Twenty gauge prepainted galvanized steel (G60) for superior corrosion
resistance. Insulated to prevent exterior condensation. Drain connections 2

- 1/2" (12 mm) OD. Balancing ports are located in the door.

WEIGHT 71 lbs. (32.5 kg) SHIPPING WEIGHT 73 lbs (33.5 kg)

ELECTRONICS

• Built-in Relay for Interfacing to furnace

OPTIONAL CONTROLS

# DHVC Ventilation Control

• 2 Speed Fan setting (Low/High) • Dehumidistat

#HHSC Healthy Home System Control

• Automatically activates the unit to deliver fresh air into your home

#DH1 Dehumidistat

• Initiates high speed ventilation when the indoor humidity level exceeds
the set point

OPTIONAL TIMERS

#VTC Ventilation Timer Control - Initiates high speed ventilation

for 20, 40, or 60 minutes, (3 wire) 20 gauge wire (min.) 100'
length

OPTIONAL ACCESSORIES

#WH 186 Weatherhoods, Two -6” (150 mm) c/w 1/4” (6 mm) mesh

screen

Date: ___________________________________________

Tag: _____________________Qty:___________________

Project: _________________________________________

Engineer: _______________________________________

Contractor: ______________________________________

Supplier: ________________________________________

Quote#: _________________________________________

Submitted by: ____________________________________

*S

ensible Efficiency – thermal **Latent Efficiency – moisture

N

ote: Effectiveness - based on temp. differential between the 2 airstreams

Efficiency – takes into account all power inputs

Performance (HVI certified)

Net supply air flow in cfm (L/s) against external static pressure

E.S.P

(

external static pressure) [cfm (L/s)]

@ 0.1" (25 Pa) 207 (97)
@

0.2" (50 Pa) 200 (94)
@ 0.3" (75 Pa) 184 (87)
@ 0.4" (100 Pa) 171 (80)
@

0.5" (125 Pa) 152 (71)
@

0.6" (150 Pa) 130 (61)
@ 0.7" (175 Pa) 116 (55)
@ 0.8" (200 Pa) 86 (40)

Max. Temperature Recovery 74%

Sensible Effectiveness
@ 66 cfm (31 L/s) 32°F (0°C) 74%

*

Sensible Efficiency

@ 66 cfm (31 L/s) 32°F (0°C) 64%

*Sensible Efficiency
@ 109 cfm (51 L/s) -13°F (-25°C) 62%

VAC @ 60HZ 120

WATTS / Low speed. 87

WATTS / High speed 164

Amp rating 1.4

LOW

Hi 1

Hi 2

Hi 3

40

60

80

100

120

140

160

180

200

220

0 0.1 0.2 0. 3 0.4 0. 5 0.6 0. 7 0.8 0. 9

Static Pressure (in w.g.)

Air Flow (cfm)

Hi 3 - High Speed
Hi 2 - Medium High Speed
Hi 1 - Medium Speed
Low - Low speed
* Manufacturers Dat a

WARRANTY

Units carry a LIFETIME warranty on the heat
recovery core and a 5 year replacement parts
warranty.

BA LANC ING DA MPE R

33 5/8"

(850 mm)

STALE AIR

FROM INSIDE

FRESH AIR

FROM OUTSIDE

STALE AIR

TO OUTSIDE

FRESH AIR

TO INSIDE

14 3/4"

(375 mm)

19"

(48 3 mm)

*All Duc t Con nec tion s 6" (150 mm )

CO NDEN SATE DR AINS

FI LTE RS

BL OWER S

*NO TE: Fro nt
cle aran ce

of 2 5 inch es
(63 5 mm)
is r ecom mend ed
for s erv icin g unit .

RE CIRC ULATIN G

DE FROS T

DAM PER

MOT OR

CO RE

BA LANC ING DA MPE R

All Duct Connections 6” (160 mm)

INSTALLER SELECTABLE HIGH SPEED SETTINGS

Adjustable DIP switches are located on the circuit board. Hi3 is
the factory setting. Refer to the Operation and Installation
manual for the adjustment instructions.

11

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12

STALE AIR

TO OUTSIDE

FRESH AIR

FROM OUTSIDE

STALE AIR

FROM INSIDE

FRESH AIR

TO INSIDE

143/4"

(375)

19"

(483)

*All Duct Connections 6"(150mm)

FILTERS

BLOWERS

*NOTE: Front clearance
of 25 inches (635 mm)

is recommended

for servicing unit.

MOTOR

ENTHALPIC CORE

33-5/8"

(850)

BALANCING

DAMPER

BALANCING

DAMPER

CORE

Model FC150ERV

DIMENSIONS FC150ERV inches (mm)

Date: ___________________________________________

Tag: _____________________Qty:___________________

Project: _________________________________________

Engineer: _______________________________________

Contractor: ______________________________________

Supplier: ________________________________________

Quote#: _________________________________________

Submitted by: ____________________________________

All units conform to CSA and UL
standards.

Static Pressure (in w.g.)

Air Flow (cfm)

20

40

60

80

100

120

140

160

180

200

220

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8

1 - Low speed

2 - High Speed

2

1

*Sensible Efficiency – thermal **Latent Efficiency – moisture

Note: Effectiveness - based on temp. differential between the 2 airstreams
Efficiency – takes into account all power inputs

Performance

N

et supply air flow in cfm (L/s) against external static pressure

E.S.P

(external static pressure) [cfm (L/s)]

@ 0.1" (25 Pa) 151 (71)

@

0.2" (50 Pa) 140 (66)

@ 0.3" (75 Pa) 131 (62)

@

0.4" (100 Pa) 123 (58)

@ 0.5" (125 Pa) 107 (50)

@ 0.6" (150 Pa) 98 (46)

@ 0.7" (175 Pa) 81 (38)

@0.8 " (200 Pa) 60 (28)

S

ensible Effectiveness

@ 64 cfm (30 L/s) 32°F (0°C) 81%

*

Sensible Efficiency

@

64 cfm (30 L/s) 32°F (0°C) 69%

T

otal Efficiency 50%

@ 64 cfm (30L/s) 95°F (35°C) 47%

VAC @ 60HZ 120

WATTS / Low speed. 63

WATTS / High speed 173

A

mp rating 1.4

LATENT RECOVERY/MOISTURE TRANSFER CORE

The cross-flow energy recovery core transfers heat and water vapor
between the two airstreams. It is easily removed for cleaning or service.

MOTORS AND BLOWERS

Each air stream has one centrifugal blower driven by a common PSC
motor. 5 speed fan operation.

FILTERS

Washable air filters in exhaust and supply air streams.

MOUNTING THE ERV

Four threaded inserts at corners of case designed to accept the "S" hooks
and hanging straps supplied with the unit.

CASE

Twenty gauge prepainted galvanized steel (G60) for superior corrosion
resistance. Insulated to prevent exterior condensation. Door balancing
ports.

WEIGHT 75 lbs. (34Kg) SHIPPING WEIGHT 77lbs. (35Kg)

ELECTRONICS

•Built-in Relay for Interfacing to furnace

OPTIONAL CONTROLS

# DHVC Ventilation Control

• 2 Speed Fan setting (Low/High) • Dehumidistat

#HHSC Healthy Home System Control

• Automatically activates the unit to deliver fresh air into your home

#DH1 Dehumidistat

• Initiates high speed ventilation when the indoor humidity level exceeds
the set point

OPTIONAL TIMERS

#VTC Ventilation Timer Control - Initiates high speed ventilation

for 20, 40, or 60 minutes, (3 wire) 20 gauge wire (min.) 100'
length

OPTIONAL ACCESSORIES

#WH 186 Weatherhoods, Two - 6” (150 mm) c/w 1/4” (6 mm) mesh

screen

WARRANTY

Units carry a five (5) year warranty
on the enthalpic (ERV) core and a 5
year replacement parts warranty.

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13

The Three Methods of Installation

Th e fo ll owing three installation m ethods are for the
HRV/ERV system:

• The Simplified installation.

• The Partially Dedicated Installation

• The Fully Dedicated Installation

Simplified Installations

The Simplified Installation draws stale air from the cold air
return duct of the air handler/furnace and introduces an
equal amount of fresh air farther downstream into the cold
air return. Refer to "Simplified Installation Diagrams".

The air handler/furnace blower must be running when the
unit is operating for this system to be effective. Refer to

"Interlocking the HRV/ERV to an Air Handler/Furnace
Blower".

Partially Dedicated Installations

The Partially Dedicated Installation draws stale air from
specific points in the house and introduces an equal amount
of fresh air into the cold air return. Refer to "Partially

Dedicated Installation Diagrams".

Stale air ducts should be installed in areas of the home
where the poorest indoor air quality exists (bathrooms and
kitchen). Each location with a stale air duct should have a
timer to initiate high speed ventilation. Refer to "Optional
Timers" in this manual.

The air handler/furnace blower should be running when the
HRV is ope rating to eve nly dis tr ibute the f re sh air
throughout the house. Refer to "Interlocking the HRV/ERV
to an Air Handler/Furnace Blower".

Fully Dedicated Installations

The Fully Dedicated Installation draws stale air from
specific points in the house and delivers fresh air to specific
locations of the house. This system is not connected to an
air h andle r/f urnac e. Refer to " The Ful ly D edi cated
Installation Diagrams" in this manual.

Stale air ducts should be installed in areas of the home
where the poorest indoor air quality exists (bathrooms and
kitchen). Each location with a stale air duct should have a
timer which will initiate high speed ventilation. Refer to
"Optional Timers" in this manual.

Fresh air ducts should be installed to all bedrooms and
living areas, excluding bathrooms, kitchen and utility areas.
Grilles should be located high on a wall or in ceiling
locations. Grilles that diffuse the air comfortably are
recommended. Refer to "Grilles" in this manual. Special
care should be taken in locating grilles if the floor is the
only option available. Areas such as under baseboard
heaters will help to temper the air.

Optional in-line duct heaters are available for mounting in
the supply duct work to add heat if required.

Installing the Ducting Between the HRV/ERV &
Living Areas in the House

A well designed and installed ducting system will allow the
HRV/ERV to operate at its maximum efficiency.

All ducts should be kept short and have as few bends or
elbows as possible to maximize airflow. Forty-five degree
elbows are preferred to 90° elbows. Use "Y" tees instead of
straight tees whenever possible.

All duct joints must be fastened with screws, rivets or duct
sealant and wrapped with mastic or quality duct tape to
prevent leakage. Mastic is preferred but if duct tape is used,
we recommend aluminum foil duct tape.

Galvanized (rigid) ducting from the HRV/ERV to the living
areas in the house is recommended whenever possible
althoug h flexibl e duct c an be u sed in m oderati on if
necessary.

A short length (approximately 12 inches or 300mm) of non-
me tallic flexible ins ul at ed duct should b e conn ec te d
between the HRV/ERV and the supply/exhaust duct system
to avoid possible noise transfer through the duct system.

All ducts running through attics and unheated spaces must
be sealed and insulated to code.

Installation Methods

ATTENTION

Applicat ion s such a s greenh ous es, a tri ums ,
swi mming p ool s, saunas, etc . h ave u niq ue
ven tilation requirement s whi ch sho uld be
addressed with an isolated ventilation system.

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DIRECT CONNECTION of both the HRV SUPPLY AIR STREAM and

EXHAUST AIR STREAM to the FURNACE COLD AIR RETURN

Installation Notes

• Unit is normally balanced on HIGH speed with the furnace blower ON.

• A minimum separation of 40 inches (1m) is recommended between the
two direct connections.

• The exhaust air connection should be upstream of the supply air
connection to prevent exhausting any fresh air.

• Weatherhood arrangement is for drawing purposes only. Six feet (2m)
minimum separation is recommended. The Weatherhood must also be 18"
(460mm) above grade minimum.

• The airflow must be confirmed on site using the balancing procedures found in this manual

Spring-Loaded Backdraft Damper

Install the Backdraft Damper with the leaf hinge vertical.
The damper is installed on the “Stale Air to Outside Collar”.

4” (102mm) Backdraft Damper Part No. 99-RSK4
5” (127mm) Backdraft Damper Part No. 99-RSK5
6” (152mm) Backdraft Damper Part No. 99-RSK6
8” (203mm) Backdraft Damper Part No. 99-RSK8

The Stale Air to Outside air duct requires
a Backdraft Damper.This damper prevents
outdoor air from entering the HRV
during the operation of the Furnace/
Air Handler while the HRV is in standby,
OFF or Recirculate.

WARNING

RETURN AIR

40" (1m) MINIMUM

Outdoors

Cool Air

Return

3' min.

recommended

Forced Air

Furnace

Dampers for
balancing
airflows

Backdraft
Damper

Leaf Hinge

Simplified Installation Diagrams

Simplified Installation (Return/Return Method)

Key Points

• The HRV/ERV must be balanced.

• It is mandatory that the furnace blower run continuously or
HRV/ERV operation be interlocked with the furnace
blower. (Refer to “Interlocking the HRV/ERV to an Air
Handler/Furnace Blower.”)

• The duct configuration may change depending on the
HRV/ERV model. See specifications for your unit.

• Check local codes / authority having jurisdiction for
acceptance.

• 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 Recirculate.

Sizing the Ductwork

It is the responsibility of the installer to ensure all ductwork is
sized and installed as designed to ensure the system will
perform as intended.

The amount of air (cfm) that an HRV/ERV will deliver is
directly related to the total external static pressure (E.S.P.) of
the system. Static pressure is a measure of resistance imposed
on the blower by length of duct work plus the number of
fittings used in the duct work.

DIRECT CONNECTION of the SUPPLY AIR STREAM and

EXHAUST AIR STREAM to the FURNACE COLD AIR RETURN.

14

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DIRECT CONNECTION of the SUPPLY AIR STREAM to the FURNACE COLD AIR RETURN

(Stale air drawn from key areas of home)

Forced Air

Furnace

Outdoors

EXHAUST AIR from various parts of home.
i.e. bathrooms (if required), kitchens (if required).

Cool Air

Return

Return Air

3' min.

recommended

Installation Notes

• Unit is normally balanced on HIGH speed with the furnace blower ON.

• Weatherhood arrangement is for drawing purposes only. Six feet (2m)
minimum separation is recommended. The Weatherhood must also be 18"
(460mm) above grade minimum.

• The airflow must be confirmed on site using the balancing procedures
found in this manual.

Dampers for
balancing
airflows

Backdraft
Damper

leaf hinge

Spring-Loaded Backdraft Damper

Install the Backdraft Damper with the leaf hinge vertical.
The damper is installed on the “Stale Air to Outside Collar”.

4” (102mm) Backdraft Damper Part No. 99-RSK4
5” (127mm) Backdraft Damper Part No. 99-RSK5
6” (152mm) Backdraft Damper Part No. 99-RSK6
8” (203mm) Backdraft Damper Part No. 99-RSK8

The Stale Air to Outside air duct requires
a Backdraft Damper.This damper prevents
outdoor air from entering the HRV during
the operation of the Furnace/Air Handler
while the HRV is in standby, OFF or
Recirculate.

WARNING

Partially Dedicated Installation Diagrams

Partially Dedicated System

This installation enables stale air to be drawn from the
poorest air quality areas of the home (bathrooms, kitchen).

Key Points

• The HRV/ERV must be balanced.

• 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.(Refer to “Interlocking the
HRV/ERV to an Air Handler/Furnace Blower.”)

• The duct configuration may change depending on the
HRV model. See specifications for your unit.

• Check local codes/authority having jurisdiction for
acceptance.

• 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 Recirculate.

Sizing the Ductwork

It is th e responsi bi li ty of the inst al ler to ensure al l
ductwork is sized and installed as designed to ensure the
system will perform as intended.

The amount of air (cfm) that an HRV/ERV will deliver is
directly related to the total external static pressure (E.S.P.)
of the system. Static pressure is a measure of resistance
imposed on the blower by length of duct work plus the
number of fittings used in the duct work.

15

(not included)

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Outdoors

Installation Notes

• Unit is normally balanced on HIGH speed with the furnace blower ON.

• Weatherhood arrangement is for drawing purposes only. Six feet (2m) minimum separation
is recommended. The Weatherhood must also be 18" (460mm) above grade minimum.

• The airflow must be confirmed on site using the balancing procedures found in this manual.

Dampers for
balancing
airflows

Stale air from various
parts of home.
i.e. bathrooms (if required)
Kitchens (if required)

Fresh air to house -
main living areas.
bedrooms, livingroom,
rec. room, etc.

Fully Dedicated Installation Diagrams

Fully Dedicated 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.

Key Points

• The HRV/ERV must be balanced.

• The duct configuration may change
depending on the HRV/ERV model. See
specifications for your unit.

• Check local codes / authority having
jurisdiction for acceptance.

16

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Installation

STEP 4. Level the unit from left to right and front to back.

- Adjust the unit down by lifting up on the buckle.

- Adjust the unit up by pulling down vertically on the Hand
Loops while lifting up the bottom of the cabinet.

Location

Install the unit in a heated space that provides convenient space for
service access. A typical location is in either a mechanical room or
an area close to the outside wall within close proximity to where
the weatherhoods are mounted. If a basement area is inconvenient
or non- existent, install the unit in a utility or laundry room.

Attic installations are not recommended due to:

A) the complexity of work to install

B) freezing conditions in the attic

C) difficulty of access for servicing and cleaning

Leave sufficient clearance at the front of the access door for
servicing the air filters and core. The recommended clearance is a
minimum of 25" (635 mm) for opening and closing the door. Field
Controls provides four straps for hanging the unit from the
basement floor joists.

Hand Loops

Buckles

Pull down on the hand
loops while lifting
the bottom of the unit.

I

mproper installation, adjustment, alteration,
service or maintenance can cause property
damage, personal injury or loss of life.
Installation and service must be performed by
a qualified installer or service agency.

WARNING

Unit must be installed level to ensure proper
condensate drainage. Due to the broad range of
installation and operational conditions, consider
the possibility of condensation forming on either
the unit or connecting ducting. Objects below the
installation may be exposed to condensate.

CAUTION

Hand Loops

Screws (not included)

Buckles

Joist

Washers (not included)

Hanging Strap grommets

“S” hooks

Note:This illustration of the unit may
vary from the unit you are installing.

DETAIL

Suspend the Unit with the Adjustable Hanging Straps

STEP 1. Insert the screws and washers (not included) through

the Hanging Strap grommets and fasten to the joists.

STEP 2. Unscrew the 4 machine screws located on the upper

side of the unit. Attach the "S" hooks and reinsert the machine

screws.

STEP 3. Hook the bottom grommets of the straps through the "S"
hooks. Pull down vertically on the hand loops while lifting up the
bottom of the cabinet. Repeat at opposite end of the unit.

Hand Loops

Straps

STEP 5. Fold the hand loops and excess strap and secure with a

nylon tie (not included).

Use 4 screws and 4 washers (not incldued) to attach the hanging
straps to the floor joists. The washer must be wider than the eyelet
of the grommet on the hanging strap.

By design, the adjustable hanging straps reduce the possibility of
noise, resonance, and harmonics.

Note: Do not pull the
Hand Loops in a
horizontal or lateral
direction during the
installation/adjustment
process.

17

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Drain Connection (HRV only)

Grilles

Drain Connection

The HRV may produce some condensation during a defrost cycle.
This water should flow into a nearby drain, or be taken away by a
condensate pump.

The HRV cabinet has prepunched holes for the drain (see below).
Insert the drain spout through the hole in the drain pan. Be sure to
install the "O ring" which seals each spout to the pan. HAND
TIGHTEN the washer and lock nut which hold the drain spout in
place.

Construct a P-Trap using the plastic tee connector. Cut two lengths
of 1/2" drain hose (not included) and connect the other ends to the
two drain spouts. Position the "T" fitting to point upward and
connect the drain line. Tape or fasten base to avoid any kinks. Pour
a cup of water into the drain pan of the HRV after the drain
connection is complete. This creates a water seal which will
prevent odors from being drawn up the hose and into the fresh air
supply of the HRV.

Adjustable grilles should be used to balance the flow rates into and
out of various rooms. The grilles should not be adjusted after
balancing the unit.

Grilles or diffusers should be positioned high on the wall or in the
ceiling. Kitchen Exhaust grilles must never be connected to the
range hood. They should be installed at least 4 feet (1.2 m)
horizontally away from the stove.

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 Techgrille

The TECHGRILLE is a round, fully adjustable grille, which
provides superior, quiet air distribution.

4” (100 mm) Part No. 99-EAG4

5” (125 mm) Part No. 99-EAG5

6” (150 mm) Part No. 99-EAG6

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.

CAUTION

D

RAIN

SPOUT

ZIP TIE

TO DRAIN

TEE

CONNECTOR

DRAIN

SPOUT

P

RE-PUNCHED HOLES (2)

D

RAIN PAN DRAIN PAN

1/2 " I.D.

D

RAIN HOSE

DRAIN HOSE PLUMBING

DRAIN

SPOUT

DRAIN

SPOUT

TO DRAIN

1/2" HARD PIPE

TEE

JOINT

PRE-PUNCHED HOLES (2)

DRAIN PA N D RAIN PAN

HARD PIPE PLUMBING

Drain trap and tubing MUST be below
bottom of door with 1/4" per foot
downwards slope away from unit.

CAUTION

Note: Secondary drain pan may be required to protect from
condensate leakage.

CAUTION

Do not mount exhaust grille within 4’
(1.2m) (horizontally) of a stove to prevent
grease from entering the unit.

18

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19

Weatherhood Installation

Installing the Ducting from the
Weatherhoods to the HRV/ERV

The inner and outer liners of the flexible insulated duct must be
clamped to the sleeve of the weatherhoods (as close to the outside
as possible) and the appropriate port on the HRV/ERV. It is very
important that the fresh air intake line be given special attention to
make sure it is well sealed. A good bead of high quality caulking
(preferably acoustical sealant) will seal the inner flexible duct to
both the HRV/ERV port and the weatherhood prior to clamping.

To minimize air flow restriction, the flexible insulated duct that
connects the two outside weatherhoods to the HRV/ERV should
be stretched tightly and be as short as possible.

Twisting or folding the duct will severely restrict air flow.

Hard (rigid) ducting which has been sealed and insulated should be
used for runs over 10’ (3.3 m). Refer to your building code.

Intake Weatherhood Requirements

• Should be located upstream (if there are prevailing winds)
from the exhaust outlet

• At least 6' (2 m) from the exhaust weatherhood

• At least 6' (2 m) away from dryer vents and furnace exhaust
(medium or high efficiency furnaces)

• A minimum of at least 6' (2 m) from driveways, oil fill pipes,
gas meters, or garbage containers

• At least 18" (460 mm) above the ground, or above the depth
of expected snow accumulation

• At least 3' (1 m) from the corner of the building

• Do not locate in a garage, attic or crawl space

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

• At least 3' (1 m) away from the corner of the building

• Not near a gas meter, electric meter or a walkway where fog
or ice could create a hazard

• Not into a garage, workshop or other unheated space

When installing the weatherhood, its outside perimeter must be
sealed with exterior caulking.

Weatherhoods

Fixed covered weatherhoods have a built-in bird screen with a 1/4"
(6 mm ) mes h to p revent f or ei gn objects f ro m entering the
ductwork.

5” (125 mm) Part No.WH 185
6” (150 mm) Part No.WH 186

Weatherhood Installation

1. Thermal Collar slides over galvanized
sleeve of Weatherhood.

2. Fasten Thermal Collar to Belt.

3. Slide the Insulated Flexible Ducting over
theWeatherhood's galvanized sleeve and
fasten it to the Thermal Collar.

4. Hood is hinged to allow for easy access
for cleaning of bird screen.

W

1/4" (6 mm) SCREEN

(front view)

EXTERIOR

WALL

SCREEN

(side view)

C

OLLAR IS SUPPLIED TO

ENSURE VAPOUR BARRIER

IS 100% SEALED TO

WALL PLATE

12" galvanized

pipe supplied

36" (1m)

recommended min.

36" (1m)

recommended min.

6' (2m)

recommended min.

18" (460mm) min.

18" (460mm) min.

OUTSIDE CORNER

INTAKE

EXHAUST

INSIDE CORNER

CAUTION

Weatherhood arrangement - requires a minimum of
6' (2m) separation and a minimum of 18" (460mm)
above the ground, or above the depth of expected
snow accumulation.

ATTENTION

Local codes may require greater distances for
exhaust and intake.

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20

Installation of the Dehumidistat or Dehumidistat Ventilation Control

Standard Series Controls may be installed onto a flush mounted
2" x 4" electrical switch box or it may be surface mounted onto a
wall.

Only 1 master control should be installed to a ventilation system
(the Face Plate on this illustration may not be exactly the same as
yours).

1. Remove the Operating Instructions Card from the top of the
Control (Figure A).

2. Separate the Face Plate from the Back Plate by firmly pulling
apart (Figure B). Be careful not to damage Face Plate Contact
Pins.

3. Place the Back Plate of the control in the desired location on
the wall and pencil mark the wall in the center of the Wire
Opening, Top Screw Hole and Bottom Screw Hole (Figure C).

4. Remove the Back Plate and drill a 3/8" opening in the wall to
allow for the Wire Opening and a 1/8" hole for the Wall
Anchors for the top and bottom screw holes (Figure D).

5. Pull 3/20 wire through the opening in the wall and the Wire
Opening of the Back Plate (Figure C).

6. Connect Red, Green and Yellow to the Wiring Terminals
located on the Back Plate (Figure C).

7. Secure a single wire to the Wire Retainer located on the Back
Plate (Figure C).

8. Attach the Back Plate to the wall using the 2 supplied screws
and anchors.

9. Att ac h the Face Pl ate t o the Back Pl ate ( Figure B).
Note: Be careful to correctly align the Face Plate to avoid
damaging the Face Plate Contact Pins.

10. Insert the Operating Instructions Card into the control (Figure
A).

11. Connect the 3/20 wire to the Terminal Block located on
ventilator (Figure E).



















ATTENTION

Pay special attention not to damage the Contact
Pins when attaching and detaching the Face Plate.
(Figure B)

Operating
Instructions Card

Figure A -

Face Plate

Figure E

Terminal Block located
on ventilator

• Yellow to YELLOW #4

• Red to RED #3

• Green to GREEN #5

Use 3/20 wire

Red #3

Yellow #4

Green #5

Back

Plate

Figure B

Face Plate
Contact
Pins

Face
Plate

Separate the
Face Plate from
the Back Plate.

Side View

P

Figure C

Front View of Back Plate

Wire
Opening

Wiring
Terminals

Wire
Retainer

TOP

Top Screw
Hole

Bottom
Screw Hole

Drill a 1/8” hole
for the Top Screw
and Anchor

Figure D

Drill holes in wall

Drill a 3/8” hole
for the Wire
opening

Drill a 1/8” hole
for the Bottom
Screw and
Anchor

Correct Installation
of Back Plate

Wall Face

Dehumidistat Sensor
Openings to room
air allow accurate
sensor readings.

Figure F

Back
Plate

Face Plate
Contact
Pins

Face
Plate

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21

Installation and Operation of 20/40/60 Minute Timer

Operating your 20/40/60 Minute Timer

Press and release the Select Button to activate high speed
override. The High Speed Status Light will illuminate and
the unit will run on high speed ventilation for 20 minutes.

The 20/40/60 Minute timers provide an extended override
time of 20 - 40 additional minutes simply by pressing and
releasing the select button.

The High Speed Status Light will dim after 10 seconds of
run time.

The High Speed Status Light will flash during the last 5
minutes of the cycle.

All timers connected to the unit will illuminate for the
duration of the override when the Select Button is pressed.

Lockout Mode

Lockout Mode is used to disable the timers.

The timer can be set to lockout mode by pressing and
holding the Select Button for five seconds. After five
seconds, the High Speed Status Light will flash; release the

Select Button. The timer is now in lockout mode. If the
Select Button is pressed during lockout mode the High
Speed Status Light will momentarily illuminate but no

override will be initiated.

If lockout mode is initiated when the timer is activated, the
timer will continue its timed sequence but will not allow any
further overrides to be initiated. Lockout mode can be
unlocked by pressing and holding the Select Button for five
seconds. After five seconds the High Speed Status Light will
stop flashing. Release the Select Button and the timer will
now operate normally.

Terminal Block
Connections

(from Timer to Terminal Block)
Yellow on timer to YELLOW #4
Red on timer to RED #3
Green on timer to GREEN #5

Red #3

Yellow #4

Green #5

High Speed
Status Lights

Select Button

initiates high speed
ventilation for 20, 40
or 60 minutes.

Yellow

Red

Green

NOTE ABOUT TIMERS

• Timers mount in standard 2” x 4” electrical boxes.

• Wire multiple timers individually back to the unit.

• Use 3/20 low voltage wire

If the system does not have a main control

installed, the HRV Terminal Block must have a

jumper installed between 2 (ON) and 3 (RED).

Refer to “Operating the HRV without a Main

Control” in this manual.

ATTENTION

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22

Installation of the Healthy Home System™ Control (HHSC)

Choose a Location

The HHSC controller can be installed anywhere in your
home. To simplify the installation, locate the HHSC control
near the HVAC system and/or the HRV/ERV, since the
HHSC does not require routine adjustment or occupant
interaction.

To provide the occupants with direct access to the functions
of the controls, install optional accessory controls
throughout the house.

How To Install the Controller

1. Separate the HHSC controller cover from the wall plate
(mounting base) to expose mounting holes
(see illustration).

2. Route wires through large hole in the mounting base.
Mount base against wall and mark wall through
3 mounting holes.

3. If mounting on a metal or wood surface, drill three 1/8-in.
pilot holes in wall where marked for the supplied
mounting screws. If mounting on drywall or other
surface, drill appropriate holes for wall anchors or other
means of attachment.

4. Secure mounting base to wall with either the 3 screws
provided or other fasteners, while ensuring that all wires
extend through the hole in mounting base.

5. Adjust length and routing of each wire to reach the
proper terminal and connector block on mounting base,
while leaving a 1/4 in. length of extra wire. Strip only
1/4 in. of insulation from each wire to prevent adjacent
wires from shorting together when connected.

6. Connect wires to their respective terminals on the
connector block. (Figure 1) Both (R) and (C) must be
connected for proper operation. Improper wiring or
installation may damage the controller. Ensure wiring is
correct before proceeding with installation or turning the
unit on.

7. Push any excess wire into wall and against mounting
base.

8. Snap cover onto base, while ensuring pins align with
sockets in connector.

9. Once powered the HHSC automatically enters into
operating mode.

Complete the Wiring Connections

1. Refer to subsequent wiring diagrams in this manual
that correspond to the desired control configuration.

NOTE: Disregard any wiring schematic(s) included with the
HHSC Control Installation Instructions that do not pertain to

HRV/ERV control. The HHSC is also typically used to
control an FAD fresh air damper.

2. Complete all wiring connections before restoring power
to the HVAC system and HRV/ERV.

Programming the HHSC Control

1. Balance the fresh and stale airflows as instructed in this
manual.

2. Determine the cfm flow rate as instructed in this manual.

3. To obtain the desired rate of fresh air exchange, refer to
the HHSC Control Installation Instructions to determine
the On/Off timer settings for the HHSC Control. Use the

cfm flow rate determined in step 2 as the computed or

measured fresh air flow rate (as calculated in the HHSC
instructions). To ensure adequate ventilation, ensure that
the “Fan On” time is equal to or greater than the “Vent
On” time, as programmed in the HHSC Control.

4. For continuous operation of the HRV/ERV, set
“Fan On” and “Vent On” to “Un” (unlimited), and “Fan
Off” and “Vent Off” to any setting except “Un”. This
setting also causes the HVAC fan to run continuously.

NOTE: The HHSC Control is factory programmed with the
default settings of the two On/Off timer values. No
configuration is required to use these factory default
settings.

Default settings:
FAN OFF 20 minutes
FAN ON 10 minutes
VENT ON 10 minutes
VENT OFF 20 minutes

Illustration of HHSC Control with cover off

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23

Installation of the Healthy Home System™ Control (HHSC)

1

2

3

4

5

6

7

8

9

10

LO

ON

R

Y

G

HI

C

NO

NC

BK

FACTORY-INSTALLED JUMPER
DO NOT REMOVE

LO

HI

24C

*

R

C Wt

Gt

Gf

V

HHSC CONTROL

RCWYG RYWG

THERMOSTAT

FURNACE OR
HEAT PUMP

HRV/ERV WIRING TERMINALS

12V/24 VAC Field wiring, 20 AWG min. required

* Connect V Terminal on the HHSC Control to the Hi Terminal (instead of Lo) for a shorter ventilation period.

Setting up the HHSC Control

The duration of the ventilation rate is adjustable
on the Healthy Home System™ Control (HHSC).
Refer to the instructions that accompanied the
HHSC for setup information.

The Healthy Home System™ Control (HHSC)

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24

Installation of the HHSC with the DH1 and 20/40/60 Minute Timers (test a)

1

2

3

4

5

6

7

8

9

10

L

O

ON

R

Y

G

HI

C

NO

NC

BK

FACTORY-INSTALLED JUMPER
DO NOT REMOVE

LO

HI

24C

*

R

C

Wt

Gt

Gf

V

HHSC CONTROL

RCWYGRYWG

THERMOSTAT

FURNACE OR
HEAT PUMP

HRV/ERV WIRING TERMINALS

12V/24 VAC Field wiring, 20 AWG min. required

* Connect V Terminal on the HHSC Control to the Hi Ter minal (instead of Lo) for a shorter ventilation period.
** One DH-1 Dehumidistat and/or one or more VTC timer controls may be connected as shown. Connect all

R

ed, Yellow, and Green control terminals to the corresponding HRV/ERV terminals.

%

8

0

2

0

R

YG

Y

R

G

Y

R

G

VTC VENTTIMER CONTROL
(OPTIONAL)**

VTC VENTTIMER CONTROL
(OPTIONAL)**

DH1 DEHUMIDISTAT
(OPTIONAL)**

Setting up the HHSC Control

The duration of the ventilation rate is adjustable
on the Healthy Home System Control™ (HHSC).
Refer to the instructions that accompanied the
HHSC for setup information.

The Healthy Home System™ Control (HHSC)

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25

Installation of the DHVC Ventilation Control with 20/40/60 Minute Timers (test c)

1

2

3

4

5

6

7

8

9

10

L

O

ON

R

Y

G

HI

C

NO

NC

BK

FACTORY-INSTALLED JUMPER
FOR STANDBY-OFF OPERATION.
SEE “SETTING STANDBY” SECTION
OF INSTALLATION INSTRUCTIONS

LO

HI

24C

RCW

Y

GRYWG

T

HERMOSTAT

FURNACE OR
HEAT PUMP

HRV/ERV WIRING TERMINALS

12V/24 VAC Field wiring, 20 AWG min. required

* Connect V Terminal on the HHSC Control to the Hi Ter minal (instead of Lo) for a shorter ventilation period.
** One DH-1 Dehumidistat and/or one or more VTC timer controls may be connected as shown. Connect all

Red, Yellow, and Green control terminals to the corresponding HRV/ERV terminals.

R

Y

G

Y

R

G

Y

R

G

V

TC VENTTIMER CONTROL

(OPTIONAL)**

V

TC VENTTIMER CONTROL

(OPTIONAL)**

DHVC VENTILATION
C

ONTROL

N

OTE:These connections are not necessary

if the system is configured as fully
dedicated (no central HVAC connections).

%

80

2

0

H

IG

H

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26

Interlocking the HRV/ERV to an Air Handler/Furnace Blower

Connecting the HRV/ERV as illustrated will ensure the Air
Handler/Furnace Blower Motor is operating whenever the
HRV/ERV is ventilating.

The HRV/ERV must be interlocked to the Furnace/Air
Handler with a Simplified Installation (Return/Return
Installation) and should be interlocked with a Partially
Dedicated Installation.

Wire
Connector

Furnace Terminal Strip

Furnace
Thermostat

H

RVTerminal Block

Operating the HRV/ERV without a Main Control and Adding Dry Contact Controls

CAUTION

Consideration should be given to competing
air flows whe n con nec tin g the H RV/ ERV i n
conjunction with an Air Handler/Furnace Blower
system.

Setting “Standby” when using a Main Control

CAUTION

Building codes in some areas require “fully-

off” functionality. Check with your local

building authority before modifying the unit

to “standby -off”.

Unintentional operation of the HRV by the

end user may occur if the unit is modified

from “fully-off” to “standby-off”.

The HRV/ERV will be “fully-off” when the
OFF position is selected on the Main Control.
Timers and /or other controls will not function
when the HRV/ERV is in the OFF position.
The “fully-off” feature can be modified to
“s ta ndby-off” by adding a j um pe r on the
Terminal Block between 2 (ON) and 3 (RED).
“Standby” can also be achieved by setting the
main control to the ON position and selecting
speed 0*. Timers and /or additional controls
will initiate high speed venti la tion when
activated

.

* Speed 0 is not available on all controls

The Terminal Block

(located on the HRV/ERV)

A jumper must be in place between 2 (ON) and
3 (RED) on the Terminal Block to activate the
HRV/E RV for tim ers and /or dry contac t
controls.

Adding Dry Contact Controls

Low Speed - A jumper between 2 (ON) and

1 (LOW) initiates low speed ventilation.
High Speed - A jumper between 2 (ON) and

6 (HI) initiates high speed ventilation.
Dehumidistat - A dry contact for a dehumidistat

is connected between 2 (ON) and 10 (BLK).

The Terminal Block

(located on the HRV/ERV)

The HRV/ERV must have a Jumper in
place between 2 (ON) and 3 (RED) on
the Terminal Block when installing the
unit without a Main Control.

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27

• A positive or negative pressure may occur in the house

• HRV/ERV may not operate at its maximum efficiency

• The unit may not defrost properly

Air Flow Measuring Gauges

The magnehelic gauge and the digital manometer are suitable
instruments for the balancing of air flows.

A magnehelic gauge with a scale of 0 to .25" w.c. is suitable
for accurately measuring air duct velocity. The value on the
gauge will be velocity pressure. A digital manometer requires
the ability to display differential pressures at 3 digits of
resolution.

Gauge Attachments

When sampling an air flow, various attachments are available
for use on a magnehelic gauge or digital manometer.

The following illustration shows a magnehelic gauge with
a scale of 0 to .25" w.c. with a pitot tube attachment. This
combination will measure the system air velocity pressure
accurately, regardless of the duct size or shape (either round
or rectangular).

Balancing Preparation

Prior to performing the air balancing procedure, perform the
following steps:

• Seal the ductwork system

• Confirm the installation and proper operation of all the
components of the HRV/ERV

• Fully open the balancing dampers

• Turn off all household exhaust devices (range hood, clothes
dryer, bathroom fans)

• Set the HRV/ERV at high speed

• Prior to balancing the unit, first adjust air flows in branch
lines to specific areas of the house

• If the outdoor temperature is below 0˚C (32˚F), ensure the
unit is not running in defrost

• Place the magnehelic gauge on a level surface and adjust it

to zero

• If the s ystem is a S impli fied o r Parti ally D edicate d
installation, operate the furnace/Air Handler at high speed

M

A

G

N

E

H

E

LI

C

DUCT

AIR

FLOW

Pitot tube

High Pressure Side

Low Pressure Side

Magnehelic gauge

Pitot tube and gauge

Balancing the Air Flows

Continuous, excessive, positive pressure may
drive moist indoor air into the external walls of
the building. Once inside the external walls, moist
air may condense (in cold weather) and degrade
structural components or cause locks to freeze.
Continuous, excessive, negative pressure may
have several undesirable effects. In some
geographic locations, soil gases such as methane
and radon gas may be drawn into the home
through basement or ground contact areas, and
may also cause the backdrafting of vented
combustion equipment.

ATTENTION

Magnehelic Gauge with a scale of 0 to .25” w.c.

Magnehelic Gauge (scale of 0 to .25” w.c.)
with a Pitot Tube Attachment

Balancing the air flows is critical to ensuring that the amount of air introduced from the outside of the building equals the
amount of air exhausted to the outside of the building. If these two air flows are not properly balanced, the following issues
may occur:

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28

Balancing the Air Flows with a Pitot Tube

STEP 1. D

rill a 3/16” hole in the duct (ideally 3 feet downstream of

a

ny elbows or bends and 1 foot upstream of any elbows

or bends) in the Fresh Air and Stale air streams.

Stale Air From Building

Balancing
Damper

Balancing Damper

Fresh Air to Building

Drill 3/16” holes in
Stale & Fresh Air
ducts.

STEP 2. Insert the Pitot tube with the tip facing towards the air

stream in the Stale Air From Building air stream. Move
the Pitot tube around in the duct (facing towards the
airflow) and take an average reading. Record the reading.

Magnehelic Gauge must be level.

Pitot tube tip facing
t

owards the air stream.

STEP 3. Repeat Step 2 to measure the Fresh Air to Building duct.

Magnehelic Gauge
must be level.

Pitot tube tip facing
towards the air stream.

STEP 4.

A) Review the readings and damper down the duct with the
highest duct velocity pressure. Repeat Step 2 and Step 3
until both ducts show indentical readings. For this example,
the Fresh Air to Building air stream has the highest duct
velocity pressure.

B) Upon completion of balancing, seal
the holes (foil tape recommended).

Determining the cfm

After balancing the air flows, calculate the cfm flow rate.

Example

This example shows how to determine the air flow for a 6” diameter duct.
As shown in the illustration, the duct velocity pressure reads 0.025” w.c.
on the magnehelic gauge. Use the chart that came with the magnehelic
gauge to determine a duct velocity of 640 feet per minute for a duct

velocity pressure of 0.025” w.c.

Cfm Calculation

cfm = feet per minute x cross section area of duct

= 640 x 0.196
= 125

Cross Section Area of some common round duct sizes:

0.087 for 4” diameter duct

0.136 for 5” diameter duct

0.196 for 6” diameter duct

0.267 for 7” diameter duct

Magnehelic Gauge reading .025” w.c.

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29

Air Flow Balancing using the Door Ports FC155HRV & FC200HRV only

Door balancing ports (not on all models) are designed to be used in
conjunction with a Magnehelic Gauge or Digital Manometer to

measure the Stale and Fresh airflows for balancing.

Step 1

Prepare the air flow measuring device (i.e. Magnehelic Gauge or
Digital Manometer) by connecting the hoses to the low and high
pressure side of the gauge.

Step 2

Insert the hoses into the rubber fittings from the optional Door Port
Adapter Kit (part # 99-182). Use light pressure and rotate until
fitting is snug. Do not extend the hose past the rubber fitting.

Step 3

Open the HRV Door. Remove the 4 Door Port Covers by carefully
pushing them out from the back side of the door (use the blunt end
of a large drill bit etc.).

Step 4

Close the HRV Door. Initiate power and operate the HRV on high
speed. Operate the forced air system on high speed (if the HRV is
connected to the forced air system) .

Step 5

Insert the 2 rubber fittings from the gauge to the STALE AIR
Balancing Ports (upper right and lower left). Seal the FRESH AIR
Balancing Ports (upper left and lower right) with tape. Record your
reading.

Step 6

Insert the 2 rubber fittings from the gauge to the FRESH AIR
Balancing Ports (upper left and lower right). Seal the STALE AIR
Balancing Ports (upper right and lower left) with tape. Record your
reading.

Step 7

Refer to the "Airflow Reference Chart" for your model and
determine the FRESH AIR and STALE AIR flow rates (the chart is
located on the lower portion of this page).

Step 8

Damper down the higher airflow and repeat Steps 5 to 7 as required
until both airflows are identical (balanced).

Step 9

Remove the tape and rubber fittings and reinstall the 4 Door Port
Covers.

MODEL 200

0 230

153

156

Manometer
Reading

Airflow Numbers

(CFM)

(in. w.g.)

0.100 98 91

0.110 102 96

0.120 107 101

0.130 111 107

0.140 115 112

0.150 120 117

0.160 124 122

0.170

128 127

0.180 133 132

0.190 137 137

0.200 141 142

0.210 145 147

0.220 149 152
.

0.240 157 161

0.250 161 166

0.260

165 171

0.270 169 175

0.280

173 180

0.290 177 184

0.300 181 189

0.310

185 193

0.320 189 198

0.330 192 202

0.340

196 207

0.350 200 211

0.360

203 215

MODEL 155

0 180

142

129

Airflow Numbers

(CFM)

Pressure

(in. w.g.)

Fresh Air Stale Air

0.100 93 80

0.105 96 83

0.110 99 86

0.115 102 89

0.120 105 92

0.125 108 96

0.130 111 99

0.135 114 102

0.140 117 105

0.145 120 108

0.150 123 111

0.160 130 117

0.170 136 123
.

0.190 148 135

0.200 154 141

0.210 160 147

0.220 166 154

0.230 172 160

0.240 178 166

0.250 184 172

0.260 191 178

0.270 197 184

0.280 203 190

0.290 209 196

0.300 215 202

0.310 221 209

Pressure

Manometer
Reading

Fresh Air Stale Air

Magnehelic Gauge hoses connected to
STALE AIR balancing ports

Illustration of measuring STALE airflow using a Magnehelic Gauge.

Magnehelic Gauge hoses connected to
FRESH AIR balancing ports

Illustration of measuring FRESH airflow using a Magnehelic Gauge.

Fresh Air
B

alancing Ports
(top-left,
b

ottom-right)

S

tale Air
Balancing Ports
(top-right,
b

ottom-left)

Illustration of a door with door ports

Airflow Reference Charts

FC200HRV

FC155HRV

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30

Push and turn with slotted
screwdriver. Damper
automatically locks when
pressure is released.

Observe the location of the screws
when connecting ductwork to the
collar. Screws should be located no
further than 1/2” from the outside
edge of the collar and they should
be no longer than 3/4”.

1/2”

Balancing Dampers

Installations where the HRV is ducted directly to
the r etu rn of the furnace/ Air Handler may
require additional dampening on the fresh air to
building duct.
This is due to the high return static pressures
found in some furnace installations.

The FC155HRV and FC200HRV models have factory installed
Balancing Dampers located in the “Fresh Air to Building” and
“Stale Air from Building” collars.

All other units require the installation of balancing dampers (not
included) in the “Fresh Air to Building” and “Stale Air from
Building” ductwork. Refer to the installation diagrams in this
manual for the Simplified, Partially Dedicated, and Fully
Dedicated systems.

NOTE

Illustration of Adjusting the Factory Installed
Balancing Damper

Illustration of Connecting ductwork to the
Balancing Damper Collars

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31

SYMPTOM CAUSE SOLUTION

Poor Air Flows

Supply air feels cold

Dehumidistat is not Operating

Humidity Levels are too High
Condensation is appearing on the windows

Humidity Levels are too Low

HRV and/or Ducts Frosting up

Condensation or Ice Build Up in Insulated
Duct to the Outside

Water in the bottom of the HRV

• 1/4” (6 mm) mesh on the outside hoods is plugged

• filters plugged

• core obstructed

• house grilles closed or blocked

• dampers are closed if installed

• poor power supply at site

• ductwork is restricting HRV

• improper speed control setting

• HRV airflow improperly balanced

• poor location of supply grilles, the airflow may irritate
the occupant

• outdoor temperature extremely cold

• outdoor temperature is above 15°C (59°F)

• improper low voltage connection

• external low voltage is shortened out by a staple or nail

• check dehumidistat setting it may be on OFF

• dehumidistat is set too high

• HRV is undersized to handle a hot tub, indoor pool, etc.

• lifestyle of the occupants

• moisture coming into the home from an unvented or
unheated crawl space

• moisture is remaining in the washroom and kitchen areas

• condensation seems to form in the spring and fall

• HRV is set at too low a speed

• dehumidistat control set too low

• blower speed of HRV is too high

• lifestyle of occupants

• HRV air flows may be improperly balanced

• HRV air flows are improperly balanced

• malfunction of the HRV defrost system

• incomplete vapour barrier around insulated duct

• a hole or tear in outer duct covering

• drain pans plugged

• improper connection of HRV’s drain lines

• HRV is not level

• drain lines are obstructed

• HRV heat exchange core is not properly installed

• clean exterior hoods or vents

• remove and clean filter

• remove and clean core

• check and open grilles

• open and adjust dampers

• have electrician check supply voltage at house

• check duct installation

• increase the speed of the HRV

• have contractor balance HRV

• locate the grilles high on the walls or under the baseboards,
install ceiling mounted diffuser or grilles 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 the

movement of air in the home

• if supply air is ducted into furnace return, the furnace fan
may need to run continuously to distribute ventilation
air comfortably

• d ehu midis tat is f uncti oni ng nor mally ( see “Ho w t he

Dehumidistat Works” in this manual)

• check that the correct terminals have been used

• check external wiring for a short

• set the dehumidistat at the desired setting

• set dehumidistat lower

• cover pools, hot tubs when they are not in use

• avoid hanging clothes to dry, storing wood and venting clothes
dryer inside. Heating wood may have to be moved outside

• vent crawl space and place a vapour barrier on the floor
of the crawl space

• ducts from the washroom should be sized to remove moist
air as effectively as possible, use of a bathroom fan for
short periods will remove additional moisture

• on humid days, as the seasons change, some condensation
may appear but the homes air quality will remain high with
some HRV use

• increase speed of the HRV

• set dehumidistat higher

• decrease HRV blower speed

• humidity may have to be added through the use of humidifiers

• have a contractor balance HRV airflows

• Note: minimal frost build-up is expected on cores before
unit initiates defrost cycle functions

• have HVAC contractor balance the HRV

• ensure damper defrost is operating during self-test

• tape and seal all joints

• tape any holes or tears made in the outer duct covering

• ensure that the vapour barrier is completely sealed

• ensure O-Ring on drain nozzle sits properly

• look for kinks in line

• check water drain connections

• make sure water drains properly from pan

Troubleshooting your HRV/ERV System

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32

LEAVE FOR HOMEOWNER

TO BE COMPLETED BY CONTRACTOR AFTER INSTALLATION

Installing Contractor _________________________________________Telephone / Contact _____________________

Serial Number______________________________________________Installation Date ________________________

Model _________________________________________________________________________________________

Residential Wiring Diagram Models FC95HRv, FC155HRV, FC200HRV, and FC150ERV

K6 K5

K7 K3 K4

P4
BLUE

K2

AUTO-
TRANSFORMER

H

IGH VOLTAGE

12/24V LOW VOLTAGE

LEGEND

CAPACITOR

B

R

O

WN

BLACK

GREEN

DIRECT
MOUNTED
CAPACITOR

B

R

O

W

N

WHITE

SEE
DEFROST
DETAIL

P1

P3

Note: If any of the original
wire supplied with the unit
must be replaced, use only
TEW certified wire.

IMPORTANT: Control low voltage is 12/24VAC.
DO NOT CONNECT EXTERNAL POWER
SOURCES TO THE UNIT.

DEFROST DETAILS (Not Applicable to FC150ERV)

P1

12

3

4

PIN 1 - BLACK
PIN 2 - ORANGE
PIN 3 - RED
PIN 4 - SPARE

PCB PLUG - IN

RED

BLACK

PLUG IN

BI-DIRECTIONAL

ORANGE

RED

BLACK

ORANGE

CONNECTOR

DAMPER MOTOR

AUTO-TRANSFORMER DETAIL

PINS 1, 2, AND 3 ARE OPTIONAL

3

2

2

1

1

5

6

4

P3

P6

P3

PIN 1 - BLUE PIN 4 - RED
PIN 2 - YELLOW PIN 5 -WHITE
PIN 3 - BROWN PIN 6 - BLACK

P6

PIN 1 - GREEN
PIN 2 - GREEN

PLUG IN CONNECTOR

AUTO

TRANSFORMER

FAN

MOTOR

P1

12

3

4
PIN 1 - RED
PIN 2 - ORANGE
PIN 3 - BLACK
PIN 4 - SPARE

PCB PLUG - IN

GREEN

WHITE

BLACK

ON

LOW

RED

YEL

GRN

H

I

C

OM

NO

NC

BLK

FC95HRV

P7
C

OMMS

P9

T4

P5

Field Controls FC95HRV, FC155HRV, FC200HRV, FC150ERV

Thermistor
(

Not on all units)

NOTE: Jumper between

2 ON and 3 RED

LO VENT

HI VENT

24COM

ABNC

NO

COM

24VAC

COIL

24VAC

COIL

NC

NO

COM

BROWN

BLUE

RED

59-FCWIRING
REV. A

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