Lifebreath RNC155, RNC20, RNC10, RNC120D, RNC5-TPD, RNC200, RNC95 User Manual

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Installation Instructions for Heat Recovery Ventilators with 2 Speed RNC Electronics

RNC Series

Models

RNC95

RNC155

RNC200

RNC10

RNC20

RNC120D

RNC5-TPD

Residential Heat Recovery Ventilators (HRV)

Manufactured with

2 Speed RNC Electronics

TI-RNC

0108

Table of Contents

 

Introduction.........................................................................

2

Engineering Data - RNC95 .............................................

3-4

Engineering Data - RNC155...............................................

5

Engineering Data - RNC200...............................................

6

Engineering Data - RNC10.................................................

7

Engineering Data - RNC20.................................................

8

Engineering Data - RNC5-TPD..........................................

9

Engineering Data - RNC120D ....................................

10-11

Remote Control Devices...................................................

12

Locating and Suspending the HRV ..................................

13

Locating and Suspending the RNC120D..........................

14

Drain Connection..............................................................

15

Installation Methods .........................................................

16

Simplified Installation ......................................................

17

Partially Dedicated Installation.........................................

18

Fully Dedicated Installation..............................................

19

Grilles and Weatherhoods.................................................

20

Electrical...........................................................................

21

Changing OFF to Standby/

 

Increasing Low Speed to Medium....................................

21

Mode DIP Switch Settings................................................

21

Wiring the Controls ..........................................................

22

Defrost Operation .............................................................

23

Defrost Cycle DIP Switch Settings...................................

23

Air Flow Balancing .....................................................

24-27

Interlocking HRV Operation to an

 

Air Handler/Furnace Blower ............................................

28

Wiring Diagrams.........................................................

29-31

Troubleshooting................................................................

32

Maintenance......................................................................

33

IMPORTANT

Please read this manual before installing the HRV

(Heat Recovery Ventilator).

Introduction

The Lifebreath HRV (Heat Recovery Ventilator) is designed to introduce fresh outdoor air into a building while exhausting an equal amount of stale indoor air.

During the heating season, heat energy from the stale exhausting air is transferred to the fresh, incoming air via Lifebreath's patented aluminum core.

During the air conditioning season, the HRV will help cool the incoming fresh air with the cooler stale exhausting air.

RNC Electronics

RNC electronics offers standard 2-speed operation of low/high. There is also an installer selectable 2-speed operation of medium low/high (refer to "Increasing Low Speed to Medium Low" in this manual).

The RNC circuit board also includes an interlock relay which is used to Interlock the HRV to an Air Handler/Furnace. Refer to "Interlocking HRV Operation to an Air Handler/Furnace Blower" in this manual.

We recommend using one of the Optional Main Controls (refer to "Remote Control Devices" in this manual) for normal operation.

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 airflows of the HRV (Heat Recovery Ventilator) 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.

NOTE

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

Leave this Manual for the Homeowner

TO BE COMPLETED BY CONTRACTOR AFTER INSTALLATION

Installing Contractor _________________________________________Telephone / Contact _____________________

Serial Number______________________________________________Installation Date ________________________

Model _________________________________________________________________________________________

2

Engineering Data - HRV

Model RNC95

 

 

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 PVC reinforced polyester straps that are 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)

CONTROLS - HRV System Control

HRV defaults to LOW SPEED when plugged in. HIGH SPEED option is accessible by connecting remote controls to designated terminals inside electrical box of HRV.

Standard LOW SPEED SETTING can be increased to medium low.

Off (Standby)/Low or OFF/HIGH speed operation is also available.

OPTIONAL MAIN CONTROLS (only one main control can be installed on the system) 99-116 Dehumidistat Ventilation Control - Dehumidistat Dial, ON/OFF Switch and

LOW/HIGH Switch (3 wire) 20 gauge wire (min.) 100' length (max.)

99-2040

20/40 ON/OFF Dehumidistat - Dehumidistat Dial, ON/OFF Switch and 20/40 Switch.

 

The 20/40 Switch will toggle from continuous low speed ventilation to intermittent low

 

speed ventilation of 20 minutes fan ON and 40 minutes fan OFF. (4 wire) 20 gauge wire

 

(min.) 100' length (max.)

99-RECIRC

Recirculation Control - Dehumidistat Dial, ON/OFF Switch and Recirculation Switch.

 

The Recirculation Switch will toggle from continuous low speed ventilation to

 

continuous low speed recirculation. (4 wire) 20 gauge wire (min.) 100' length (max.)

99-130

Remote Dehumidistat - Dehumidistat Dial only. (2 wire) 20 gauge wire (min.) 100'

 

length (max.)

OPTIONAL TIMERS

99-132

20 Minute Fan Timer - initiates high speed ventilation for 20 minutes. (3 wire) 20 gauge

 

wire (min.) 100’ length

99-104

Digital Electronic Timer- initiates high speed ventilation for 20, 40 or 60 minutes, (3

 

wire) 20 gauge wire (min.) 100' length

99-101

60 Minute Crank Timer - initiates high speed ventilation for up to 60 minutes, (2 wire)

 

20 gauge wire (min.) 100' length (max.)

WARRANTY

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

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)

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.

 

60

 

 

 

WATTS / High speed

 

150

Amp rating

 

0.9

*Sensible Efficiency – thermal **Latent Efficiency – moisture

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

 

80

 

 

 

 

5 - High Speed

 

 

 

 

 

 

 

 

 

75

5

 

 

 

 

 

 

 

 

 

 

 

 

 

70

 

 

 

 

 

 

(cfm)

65

 

 

 

 

 

 

Air Flow

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60

 

 

 

 

 

 

 

55

 

 

 

 

 

 

 

50

 

 

 

 

 

 

 

0

0.1

0.2

0.3

0.4

0.5

0.6

Static Pressure (in w.g.)

All units conform to CSA and UL standards

DIMENSIONS

 

 

 

 

 

 

RNC95

18.5"

 

knockout for

Hanging

 

 

inches (mm)

(470 mm)

 

side mounting of

straps (4)

Threaded

 

 

EXHAUST return port

 

 

 

 

inserts (4)

 

 

 

 

6" round collar

 

at corners

 

 

 

 

converted to oval

 

 

 

 

 

 

18.5"

EXHAUST

 

 

 

 

 

 

 

 

 

 

(470 mm)

Stale Air

 

(622mm)

Removable

 

SUPPLY

to outside

24.5"

 

Fresh air

5" round collar

Heat Recovery

 

from outside

 

 

 

Core

 

 

5" round collar

EXHAUST

 

 

 

minimum

 

SUPPLY

Return air

 

 

 

 

from building

 

 

 

 

Fresh air

 

 

 

18 inches (459 mm)

 

 

 

 

 

 

to building

 

 

 

 

required for

 

Choice of port location

 

 

Drain Pan

 

6" round

 

 

service access

 

Knockouts on top and

 

 

 

(conv. to oval)

 

 

 

 

 

 

 

 

 

side of unit (use 1 only)

 

 

Drain spout

 

16"

collar

 

FRONT

 

SIDE

(406 mm)

TOP

6" round (conv. to oval)

 

 

 

collar supplied

Date: _______________________________________________

Contractor: __________________________________________

Tag: __________________________Qty:__________________

Supplier: ____________________________________________

Project: _____________________________________________

Quote#: _____________________________________________

Engineer:____________________________________________

Submitted by: ________________________________________

 

SP-RNC95

3

Port Configuration and Airflow

Model RNC95

 

 

RNC95 Specifications

The RNC95 HRV (Heat Recovery Ventilator) has been designed to allow the installer to choose between two possible positions on the cabinet for the Stale Air Exhaust (from building) port. Illustrations in this manual show standard (side mounted) port location. The same specifications apply to both RNC95 setups, regardless of which port position is selected.

In order to make the RNC95 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.

Round port bent to oval

SIDE MOUNTED PORT

TOP MOUNTED PORT

standard location

alternate location

Variable Port Location / Installation (Model RNC95 only)

The exhaust return port collar is not factory installed. Installer may choose either side mounted or alternate top mounted port by simply removing one of the two knock-out plates and attaching a port collar (supplied). To remove knock-out plate, insert a utility knife into the knock-out slits and trace them completely to puncture protective film underneath. Then, cut the solid tabs between the slits, using tin snips or side cutters, and remove the knock-out plate. If any protective film still blocks the opening, remove it now.

RNC95 Air Flow

Stale air enters the FRONT RIGHT side port. The air will pass down the front half of the core, then up the back half of the core and out the RIGHT REAR port.

Fresh outdoor air will enter the LEFT REAR port and pass down the back half of the core. It will then pass up the front half of the core, and out the LEFT FRONT port.

4

Engineering Data - HRV

Model RNC155

 

 

THERMALLY CONDUCTIVE, PATENTED ALUMINUM CORE

The cross-flow heat recovery core transfers heat between the two air streams. 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 case designed to accept four reinforced polyester straps that are 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 two - 1/2" (12mm) OD.

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

CONTROLS - HRV System Control

HRV defaults to LOW SPEED when plugged in. HIGH SPEED option is accessible by connecting remote controls to designated terminals inside electrical box of HRV.

Standard LOW SPEED SETTING can be increased to medium low.

Off (Standby)/Low or OFF/HIGH speed operation is also available.

OPTIONAL MAIN CONTROLS (only one main control can be installed on the system)

99-116

Dehumidistat Ventilation Control - Dehumidistat Dial, ON/OFF Switch and

 

LOW/HIGH Switch (3 wire) 20 gauge wire (min.) 100' length (max.)

99-2040

20/40 ON/OFF Dehumidistat - Dehumidistat Dial, ON/OFF Switch and 20/40 Switch.

 

The 20/40 Switch will toggle from continuous low speed ventilation to intermittent low

 

speed ventilation of 20 minutes fan ON and 40 minutes fan OFF. (4 wire) 20 gauge wire

 

(min.) 100' length (max.)

99-RECIRC

Recirculation Control - Dehumidistat Dial, ON/OFF Switch and Recirculation Switch.

 

The Recirculation Switch will toggle from continuous low speed ventilation to continuous

 

low speed recirculation. (4 wire) 20 gauge wire (min.) 100' length (max.)

99-130

Remote Dehumidistat - Dehumidistat Dial only. (2 wire) 20 gauge wire (min.) 100'

 

length (max.)

OPTIONAL TIMERS

99-132

20 Minute Fan Timer - initiates high speed ventilation for 20 minutes. (3 wire) 20 gauge

 

wire (min.) 100’ length

99-104

Digital Electronic Timer- initiates high speed ventilation for 20, 40 or 60 minutes, (3

 

wire) 20 gauge wire (min.) 100' length

99-101

60 Minute Crank Timer - initiates high speed ventilation for up to 60 minutes, (2 wire)

 

20 gauge wire (min.) 100' length (max.)

WARRANTY

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

DIMENSIONS RNC155 inches (mm)

FRESH AIR

STALE AIR

FROM INSIDE

FROM OUTSIDE

 

RECIRCULATING

FILTERS

 

DEFROST

 

DAMPER

 

CORE

BLOWERS

MOTOR

 

STALE AIR

FRESH AIR

TO OUTSIDE

TO INSIDE

 

33 5/8"

CONDENSATE DRAINS

(850mm) BALANCING DAMPER

19"

(483)

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)

150

(71)

@ 0.2" (50 Pa)

146

(69)

@ 0.3" (75 Pa)

134

(63)

@ 0.4" (100 Pa)

121

(57)

@ 0.5" (125 Pa)

106

(50)

@ 0.6" (150 Pa)

92

(43)

Max. Temperature Recovery

78%

 

 

 

Sensible Effectiveness

 

 

@ 65 cfm (31 L/s)

32°F (0°C)

76%

*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

*Sensible Efficiency – thermal **Latent Efficiency – moisture

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

 

160

 

 

 

 

3 - High Speed

 

 

 

 

 

 

 

 

 

 

3

 

 

 

*2 - Medium Low Speed

 

 

140

 

 

 

 

*1 - Low speed

 

 

 

 

 

 

 

 

 

 

120

 

 

 

 

* Manufacturers Data

 

 

 

 

 

 

 

 

 

Flow (cfm)

100

 

 

 

 

 

 

 

80

 

 

 

 

 

 

 

Air

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

40

 

 

 

 

 

 

 

 

20

 

 

 

 

 

 

 

 

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

Static Pressure (in w .g.)

All units conform to CSA and UL standards

*NOTE: Front clearance of 25 inches (635 mm) is recommended for servicing unit.

*All Duct Connections 6" (150mm)

14 3/4"

(375)

Date: _______________________________________________

Contractor: __________________________________________

Tag: __________________________Qty:__________________

Supplier: ____________________________________________

Project: _____________________________________________

Quote#: _____________________________________________

Engineer:____________________________________________

Submitted by: ________________________________________

5

SP-RNC155

 

Engineering Data - HRV

Model RNC200

 

 

THERMALLY CONDUCTIVE, PATENTED ALUMINUM CORE

The cross-flow heat recovery core transfers heat between the two air streams. 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 case designed to accept four reinforced polyester straps that are 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

two - 1/2" (12mm) OD.

WEIGHT 71 lbs. (32.5 kg)

SHIPPING WEIGHT 73 lbs. (33.5 kg)

CONTROLS - HRV System Control

HRV defaults to LOW SPEED when plugged in. HIGH SPEED option is accessible by connecting remote controls to designated terminals inside electrical box of HRV.

Standard LOW SPEED SETTING can be increased to medium low.

Off (Standby)/Low or OFF/HIGH speed operation is also available.

OPTIONAL MAIN CONTROLS (only one main control can be installed on the system)

99-116

Dehumidistat Ventilation Control - Dehumidistat Dial, ON/OFF Switch and LOW/HIGH

 

Switch (3 wire) 20 gauge wire (min.) 100' length (max.)

99-2040

20/40 ON/OFF Dehumidistat - Dehumidistat Dial, ON/OFF Switch and 20/40 Switch.

 

The 20/40 Switch will toggle from continuous low speed ventilation to intermittent low

 

speed ventilation of 20 minutes fan ON and 40 minutes fan OFF. (4 wire) 20 gauge wire

 

(min.) 100' length (max.)

99-RECIRC

Recirculation Control - Dehumidistat Dial, ON/OFF Switch and Recirculation Switch.

 

The Recirculation Switch will toggle from continuous low speed ventilation to continuous

 

low speed recirculation. (4 wire) 20 gauge wire (min.) 100' length (max.)

99-130

Remote Dehumidistat - Dehumidistat Dial only. (2 wire) 20 gauge wire (min.) 100' length

 

(max.)

OPTIONAL TIMERS

99-132

20 Minute Fan Timer - initiates high speed ventilation for 20 minutes. (3 wire) 20 gauge

 

wire (min.) 100’ length

99-104

Digital Electronic Timer- initiates high speed ventilation for 20, 40 or 60 minutes, (3

 

wire) 20 gauge wire (min.) 100' length

99-101

60 Minute Crank Timer - initiates high speed ventilation for up to 60 minutes, (2 wire)

 

20 gauge wire (min.) 100' length (max.)

WARRANTY

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

Dimensions RNC200

inches (mm)

FRESH AIR

STALE AIR

FROM OUTSIDE

FROM INSIDE

 

FILTERS

RECIRCULATING

DEFROST DAMPER

CORE

BLOWERS

MOTOR

 

STALE AIR

FRESH AIR

TO OUTSIDE

TO INSIDE

 

 

33 5/8"

CONDENSATE DRAINS (850 mm) BALANCING DAMPER

19" (483 mm)

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

*Sensible Efficiency – thermal **Latent Efficiency – moisture

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

 

220

 

 

 

 

 

3 - High Speed

 

 

200

3

 

 

 

 

*2 - Medium Low Speed

 

 

 

 

 

 

*1 - Low speed

 

 

180

 

 

 

 

 

* Manufacturers Data

 

 

 

 

 

 

 

 

 

(cfm)

160

 

 

 

 

 

 

 

 

 

140

 

 

 

 

 

 

 

 

 

Flow

 

 

 

 

 

 

 

 

 

120

 

 

 

 

 

 

 

 

 

Air

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100

 

 

 

 

 

 

 

 

 

 

80

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60

 

 

 

 

 

 

 

 

 

 

40

 

 

 

 

 

 

 

 

 

 

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

Static Pressure (in w.g.)

All units conform to CSA and UL standards

*NOTE: Front clearance

of 25 inches (635 mm)

is recommended for servicing unit.

*All Duct Connections 6" (150 mm)

14 3/4"

(375 mm)

Date: _______________________________________________

Contractor: __________________________________________

Tag: __________________________Qty:__________________

Supplier: ____________________________________________

Project: _____________________________________________

Quote#: _____________________________________________

Engineer:____________________________________________

Submitted by: ________________________________________

6

SP-RNC200

 

Engineering Data - HRV

Model RNC10

 

 

THERMALLY CONDUCTIVE, PATENTED ALUMINUM CORE

The cross-flow heat recovery core transfers heat between the two air streams. 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 case designed to accept four PVC reinforced polyester straps that are supplied with the unit.

DEFROST

Damper defrost system; defrosts automatically as the outdoor temperature falls.

CASE

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

WEIGHT 63 lbs. (28.7 kg) SHIPPING WEIGHT 67 lbs. (30.4 kg)

CONTROLS - HRV System Control

HRV defaults to LOW SPEED when plugged in. HIGH SPEED option is accessible by connecting remote controls to designated terminals inside electrical box of HRV.

Standard LOW SPEED SETTING can be increased to medium low.

Off (Standby)/Low or OFF/HIGH speed operation is also available.

OPTIONAL MAIN CONTROLS (only one main control can be installed on the system)

99-116

Dehumidistat Ventilation Control - Dehumidistat Dial, ON/OFF Switch and LOW/HIGH

 

Switch (3 wire) 20 gauge wire (min.) 100' length (max.)

99-2040

20/40 ON/OFF Dehumidistat - Dehumidistat Dial, ON/OFF Switch and 20/40 Switch.

 

The 20/40 Switch will toggle from continuous low speed ventilation to intermittent low

 

speed ventilation of 20 minutes fan ON and 40 minutes fan OFF. (4 wire) 20 gauge wire

 

(min.) 100' length (max.)

99-130

Remote Dehumidistat - Dehumidistat Dial only. (2 wire) 20 gauge wire (min.) 100' length

 

(max.)

OPTIONAL TIMERS

99-132

20 Minute Fan Timer - initiates high speed ventilation for 20 minutes. (3 wire) 20 gauge

 

wire (min.) 100’ length

99-104

Digital Electronic Timer- initiates high speed ventilation for 20, 40 or 60 minutes, (3

 

wire) 20 gauge wire (min.) 100' length

99-101

60 Minute Crank Timer - initiates high speed ventilation for up to 60 minutes, (2 wire)

 

20 gauge wire (min.) 100' length (max.)

WARRANTY

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

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)

177

(83)

@ 0.2" (50 Pa)

164

(77)

@ 0.3" (75 Pa)

156

(73)

@ 0.4" (100 Pa)

143

(67)

@ 0.5" (125 Pa)

123

(58)

@ 0.6" (150 Pa)

100

(47)

@ 0.7" (175 Pa)

38

(18)

Max. Temperature Recovery

78%

 

 

 

Sensible Effectiveness

 

 

@ 67 cfm (32 L/s)

32°F (0°C)

76%

*Sensible Efficiency

 

 

@ 67 cfm (32 L/s)

32°F (0°C)

66%

*Sensible Efficiency

 

 

@ 68 cfm (32 L/s)

-13°F (-25°C)

60%

 

 

 

VAC @ 60HZ

 

120

 

 

 

WATTS / Low speed.

 

63

 

 

 

WATTS / High speed

 

173

 

 

 

Amp rating

 

1.4

*Sensible Efficiency - thermal **Latent Efficiency - moisture

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

 

200

 

 

 

 

 

3 - High Speed

 

 

 

 

 

 

 

 

 

 

180

 

 

 

 

 

*2 - Medium Low Speed

 

3

 

 

 

 

*1 - Low speed

 

 

 

 

 

 

 

 

 

 

 

160

 

 

 

 

 

*Manufacturer’s Data

 

 

 

 

 

 

 

 

 

 

140

 

 

 

 

 

 

 

 

(cfm)

120

2

 

 

 

 

 

 

 

Flow

 

 

 

 

 

 

 

 

100

 

 

 

 

 

 

 

 

Air

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

80

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60

 

 

 

 

 

 

 

 

 

40

 

 

 

 

 

 

 

 

 

20

 

 

 

 

 

 

 

 

 

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

Static Pressure (in w.g.)

All units conform to CSA and UL standards

Dimensions

FRESH AIR

RNC10

FROM OUTSIDE

 

inches (mm)

DEFROST

STALE AIR

DAMPER

TO OUTSIDE

 

DEFROST

 

 

PORT

 

 

FILTERS

BLOWERS

 

 

 

STALE AIR

FRESH AIR

 

TO INSIDE

 

FROM INSIDE

 

 

 

 

33-5/8"

 

CONDENSATE DRAINS

BALANCING DAMPER

 

 

*NOTE:

Front clearance of 25 inches (635 mm) is recommended for servicing unit.

14 3/4"

(375)

19"

 

(483)

 

*All Duct Connections 6"(150mm)

Date: _______________________________________________

Contractor: __________________________________________

Tag: __________________________Qty:__________________

Supplier: ____________________________________________

Project: _____________________________________________

Quote#: _____________________________________________

Engineer:____________________________________________

Submitted by: ________________________________________

7

SP-RNC10

Engineering Data - HRV

Model RNC20

 

 

THERMALLY CONDUCTIVE, PATENTED ALUMINUM CORE

The cross-flow heat recovery core transfers heat between the two air streams. 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 case designed to accept four PVC reinforced polyester straps that are supplied with the unit.

DEFROST

Damper defrost system; defrosts automatically as the outdoor temperature falls.

CASE

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

WEIGHT 63 lbs. (28.7 kg) SHIPPING WEIGHT 67 lbs. (30.4 kg)

CONTROLS - HRV System Control

HRV defaults to LOW SPEED when plugged in. HIGH SPEED option is accessible by connecting remote controls to designated terminals inside electrical box of HRV.

Standard LOW SPEED SETTING can be increased to medium low.

Off (Standby)/Low or OFF/HIGH speed operation is also available.

OPTIONAL MAIN CONTROLS (only one main control can be installed on the system)

99-116

Dehumidistat Ventilation Control - Dehumidistat Dial, ON/OFF Switch and LOW/HIGH

 

Switch (3 wire) 20 gauge wire (min.) 100' length (max.)

99-RECIRC

Recirculation Control - Dehumidistat Dial, ON/OFF Switch and Recirculation Switch.

 

The Recirculation Switch will toggle from continuous low speed ventilation to continuous

 

low speed recirculation. (4 wire) 20 gauge wire (min.) 100' length (max.)

99-130

Remote Dehumidistat - Dehumidistat Dial only. (2 wire) 20 gauge wire (min.) 100' length

 

(max.)

OPTIONAL TIMERS

99-132

20 Minute Fan Timer - initiates high speed ventilation for 20 minutes. (3 wire) 20 gauge

 

wire (min.) 100’ length

99-104

Digital Electronic Timer- initiates high speed ventilation for 20, 40 or 60 minutes, (3

 

wire) 20 gauge wire (min.) 100' length

99-101

60 Minute Crank Timer - initiates high speed ventilation for up to 60 minutes, (2 wire)

 

20 gauge wire (min.) 100' length (max.)

WARRANTY

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

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)

214 (101)

@ 0.2" (50 Pa)

206 (97)

@ 0.3" (75 Pa)

193 (91)

@ 0.4" (100 Pa)

184 (87)

@ 0.5" (125 Pa)

170 (80)

@ 0.6" (150 Pa)

155 (73)

@ 0.7" (175 Pa)

137 (65)

Max. Temperature Recovery

69%

 

 

 

Sensible Effectiveness

 

 

@ 119 cfm (56 L/s)

32°F (0°C)

67%

*Sensible Efficiency

 

 

@ 119 cfm (56 L/s)

32°F (0°C)

60%

*Sensible Efficiency

 

 

@ 117 cfm (55 L/s)

-13°F (-25°C)

60%

 

 

 

VAC @ 60HZ

 

120

 

 

 

WATTS / Low speed.

 

70

 

 

 

WATTS / High speed

 

182

 

 

 

Amp rating

 

1.4

*Sensible Efficiency - thermal **Latent Efficiency - moisture

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

 

240

 

 

 

 

 

3 - High Speed

 

 

 

 

 

 

 

 

 

 

220

 

 

 

 

 

*2 - Medium Low Speed

 

3

 

 

 

 

*1 - Low speed

 

 

 

 

 

 

 

 

 

200

 

 

 

 

 

 

 

 

 

180

 

 

 

 

 

*Manufacturer’s data

 

 

 

 

 

 

 

 

 

 

(cfm)

160

 

 

 

 

 

 

 

 

140

 

 

 

 

 

 

 

 

Flow

 

 

 

 

 

 

 

 

120

 

 

 

 

 

 

 

 

Air

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100

 

 

 

 

 

 

 

 

 

80

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60

 

 

 

 

 

 

 

 

 

40

 

 

 

 

 

 

 

 

 

20

 

 

 

 

 

 

 

 

 

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

Static Pressure (in w.g.)

 

 

 

All units conform to CSA and UL standards

Dimensions

FRESH AIR

 

 

 

 

FROM OUTSIDE

 

 

 

 

RNC20

DEFROST

STALE AIR

 

 

 

inches (mm)

DAMPER

TO OUTSIDE

 

 

 

 

 

 

 

 

DEFROST

 

 

 

 

 

PORT

 

 

 

(483)

 

FILTERS

BLOWERS

*NOTE:

19"

 

 

 

 

 

 

 

 

 

 

Front clearance of

 

 

 

 

 

25 inches (635 mm)

 

 

 

 

 

is recommended

 

 

 

STALE AIR

FRESH AIR

for servicing unit.

 

 

 

 

 

 

 

TO INSIDE

 

 

 

 

FROM INSIDE

 

14 3/4"

 

 

 

 

 

 

33-5/8"

 

 

 

 

BALANCING DAMPER

 

(375)

 

 

CONDENSATE DRAINS

 

 

 

 

 

 

 

 

*All Duct Connections 6"(150mm)

Date: _______________________________________________

Contractor: __________________________________________

Tag: __________________________Qty:__________________

Supplier: ____________________________________________

Project: _____________________________________________

Quote#: _____________________________________________

Engineer:____________________________________________

Submitted by: ________________________________________

8

SP-RNC20

Engineering Data - HRV

Model RNC5-TPD

 

 

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 an independent motorized impeller. 2 speed fan operation.

FILTERS

Washable air filters in exhaust and supply air streams.

DEFROST

Recirculating damper defrost system.

CASE

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

MOUNTING THE HRV

Four threaded inserts at corners of case designed to accept four reinforced polyester straps that are supplied with the unit.

DUCT CONNECTIONS

4 - 5” (127 mm) duct connections.

WEIGHT 61 lbs. (28 kg) SHIPPING WEIGHT 64 lbs. (29 kg)

CONTROLSHRV System Control

HRV defaults to user selected speed from switch on top of cabinet when plugged in. HIGH SPEED option is accessible by connecting remote controls to designated terminals inside electrical box of HRV.

OFF(Standby)/LOW or OFF/HIGH speed operation is also available.

OPTIONAL MAIN CONTROLS (only one main control can be installed on the system) 99-116 Dehumidistat Ventilation Control - Dehumidistat Dial, ON/OFF Switch and

LOW/HIGH Switch (3 wire) 20 gauge wire (min.) 100' length (max.)

99-2040

20/40 ON/OFF Dehumidistat - Dehumidistat Dial, ON/OFF Switch and 20/40 Switch.

 

The 20/40 Switch will toggle from continuous low speed ventilation to intermittent low

 

speed ventilation of 20 minutes fan ON and 40 minutes fan OFF. (4 wire) 20 gauge wire

 

(min.) 100' length (max.)

99-RECIRC

Recirculation Control - Dehumidistat Dial, ON/OFF Switch and Recirculation Switch.

 

The Recirculation Switch will toggle from continuous low speed ventilation to

 

continuous low speed recirculation. (4 wire) 20 gauge wire (min.) 100' length (max.)

99-130

Remote Dehumidistat - Dehumidistat Dial only. (2 wire) 20 gauge wire (min.) 100'

 

length (max.)

OPTIONAL TIMERS

99-132

20 Minute Fan Timer - initiates high speed ventilation for 20 minutes. (3 wire) 20

 

gauge wire (min.) 100’ length

99-104

Digital Electronic Timer- initiates high speed ventilation for 20, 40 or 60 minutes, (3

 

wire) 20 gauge wire (min.) 100' length

99-101

60 Minute Crank Timer - initiates high speed ventilation for up to 60 minutes, (2 wire)

 

20 gauge wire (min.) 100' length (max.)

WARRANTY

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

Performance (H.V.I. 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)

169

(80)

@ 0.2" (50 Pa)

156

(73)

@ 0.3" (75 Pa)

149

(70)

@ 0.4" (100 Pa)

136

(64)

@ 0.5" (125 Pa)

126

(59)

@ 0.6" (150 Pa)

116

(54)

@ 0.7" (175 Pa)

103

(48)

@ 0.8" (200 Pa)

89

(42)

@ 0.9" (225 Pa)

77

(36)

@ 1.0" (250 Pa)

58

(27)

Max. Temperature Recovery

78%

 

 

 

Sensible Effectiveness

 

 

@ 66 cfm (31 L/s)

32°F (0°C)

74%

*Sensible Efficiency

 

 

@ 66 cfm (31 L/s)

32°F (0°C)

61%

*Sensible Efficiency

 

 

@ 76 cfm (36 L/s)

-13°F (-25°C)

63%

 

 

 

VAC @ 60HZ

 

120

 

 

 

WATTS / Low speed.

 

69

 

 

 

WATTS / High speed

 

147

 

 

 

Amp rating

 

1.7

*Sensible Efficiency - thermal **Latent Efficiency - moisture

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

 

180

 

 

 

 

 

 

 

3 - High Speed

 

 

 

 

3

 

 

 

 

 

 

 

 

 

160

 

 

 

 

 

 

*2 - Medium Low Speed

 

 

 

 

 

 

 

 

*1 - Low speed

 

 

 

140

 

 

 

 

 

 

 

* Manufacturers Data

 

 

 

 

 

 

 

 

 

 

 

 

120

 

 

 

 

 

 

 

 

 

 

 

(cfm)

100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Flow

80

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Air

 

1

 

 

 

 

 

 

 

 

 

60

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40

 

 

 

 

 

 

 

 

 

 

 

 

20

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

1.1

Static Pressure (in w.g.)

All units conform to CSA and UL standards

Dimensions

 

 

RNC5-TPD

15”

 

inches (mm)

(378 mm)

 

 

 

 

27”

 

 

(690 mm)

 

 

2-1/4”

 

 

(57 mm)

SPEED

 

 

 

 

SELECTION

 

18-3/4”

SWITCH

 

(475 mm)

 

Date: _______________________________________________

Contractor: __________________________________________

Tag: __________________________Qty:__________________

Supplier: ____________________________________________

Project: _____________________________________________

Quote#: _____________________________________________

Engineer:____________________________________________

Submitted by: ________________________________________

9

SP-RNC5-TPD

Engineering Data - HRV

Model RNC120D

 

 

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 an independent motorized impeller. 2 speed fan operation.

FILTERS

Washable air filters in exhaust and supply air streams.

MOUNTING THE HRV

Four threaded inserts at corners of case designed to accept four reinforced polyester straps that are 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- 1/2" (12 mm) OD.

DUCT CONNECTIONS

5” duct connections.

WEIGHT 42 lbs. (19 kg.) SHIPPING WEIGHT 45 lbs. (20.5 kg.)

CONTROLS - HRV System Control

HRV defaults to LOW SPEED when plugged in. HIGH SPEED option is accessible by connecting remote controls to designated terminals inside electrical box of HRV.

Standard LOW SPEED SETTING can be increased to medium low. Off (Standby)/Low or OFF/HIGH speed operation is also available.

OPTIONAL MAIN CONTROLS (only one main control can be installed on the system)

99-116

Dehumidistat Ventilation Control - Dehumidistat Dial, ON/OFF Switch and

 

LOW/HIGH Switch (3 wire) 20 gauge wire (min.) 100' length (max.)

99-2040

20/40 ON/OFF Dehumidistat - Dehumidistat Dial, ON/OFF Switch and 20/40 Switch.

 

The 20/40 Switch will toggle from continuous low speed ventilation to intermittent low

 

speed ventilation of 20 minutes fan ON and 40 minutes fan OFF. (4 wire) 20 gauge wire

 

(min.) 100' length (max.)

99-RECIRC

Recirculation Control - Dehumidistat Dial, ON/OFF Switch and Recirculation Switch.

 

The Recirculation Switch will toggle from continuous low speed ventilation to continuous

 

low speed recirculation. (4 wire) 20 gauge wire (min.) 100' length (max.)

99-130

Remote Dehumidistat - Dehumidistat Dial only. (2 wire) 20 gauge wire (min.) 100'

 

length (max.)

OPTIONAL TIMERS

99-132

20 Minute Fan Timer - initiates high speed ventilation for 20 minutes. (3 wire) 20 gauge

 

wire (min.) 100’ length

99-104

Digital Electronic Timer- initiates high speed ventilation for 20, 40 or 60 minutes, (3

 

wire) 20 gauge wire (min.) 100' length

99-101

60 Minute Crank Timer - initiates high speed ventilation for up to 60 minutes, (2 wire)

 

20 gauge wire (min.) 100' length (max.)

WARRANTY

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

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)

 

142

(67)

@ 0.2" (50 Pa)

 

137

(64)

@ 0.3" (75 Pa)

 

131

(62)

@ 0.4" (100 Pa)

 

128

(60)

@ 0.5" (125 Pa)

 

123

(58)

@ 0.6" (150 Pa)

 

115

(54)

@ 0.7" (175 Pa)

 

113

(53)

@ 0.8" (200 Pa)

 

105

(49)

@ 0.9" (225 Pa)

 

102

(48)

@ 1.0" (250 Pa)

 

96

(45)

 

 

Max. Temperature Recovery

72%

 

 

 

 

Sensible Effectiveness

 

 

 

@ 70 cfm (33 L/s)

32°F (0°C)

68%

*Sensible Efficiency

 

 

 

@ 70 cfm (33 L/s)

32°F (0°C)

59%

*Sensible Efficiency

 

 

 

@ 67 cfm (32 L/s)

-13°F (-25°C)

56%

VAC @ 60HZ

 

 

120

WATTS / Low speed.

 

 

70

WATTS / High speed

 

 

160

Amp rating

 

 

1.5

*Sensible Efficiency - thermal **Latent Efficiency - moisture

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

 

160

 

 

 

 

 

 

 

 

3 - High Speed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*2 - Medium Low Speed

 

140

3

 

 

 

 

 

 

 

*1 - Low speed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

120

 

 

 

 

 

 

 

 

* Manufacturers Data

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Flow (cfm)

100

 

 

 

 

 

 

 

 

 

 

 

 

 

80

 

 

 

 

 

 

 

 

 

 

 

 

 

Air

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

1.1

1.2

1.3

Static Pressure (in w.g.)

All units conform to CSA and UL standards

Dimensions

STALE AIR

FRESH AIR

All duct collars are

RNC120D

TO OUTSIDE

FROM OUTSIDE

 

 

5” diameter (127 mm)

inches (mm)

 

 

 

 

 

 

 

 

STALE AIR

 

 

 

FROM

 

 

 

BUILDING

 

22”

 

9 1/8”

 

(559 mm)

 

(232 mm)

FRESH AIR TO

BUILDING Front View (if mounting vertically)

25 1/8” Bottom View (if mounting horizontally)

(637 mm)

Date: _______________________________________________

Contractor: __________________________________________

Tag: __________________________Qty:__________________

Supplier: ____________________________________________

Project: _____________________________________________

Quote#: _____________________________________________

Engineer:____________________________________________

Submitted by: ________________________________________

10

SP-RNC120D

Engineering Data - HRV

Model RNC120D

 

 

Option 1 - Horizontal Duct Configuration Dimensions inches

STALE

FRESH AIR

AIR TO

FROM

OUTSIDE

OUTSIDE

22” (559 mm)

25 1/8”

(637 mm)

BOTTOM VIEW FOR HORIZONTAL MOUNT SERVICE CLEARANCE FROM BOTTOM OF UNIT IS MINIMUM 3’0”

9-1/8” (232 mm)

SIDE VIEW FOR HORIZONTAL MOUNT

HANGING STRAPS

STALE AIR

FROM BUILDING

FRESH AIR

TO BUILDING

STALE AIR

 

TO OUTSIDE

 

 

FRESH AIR

FRESH AIR

TO BUILDING

 

FROM OUTSIDE

 

 

STALE AIR

ALL DUCT COLLARS

FROM BUILDING

ACCESS DOOR

ARE 5” DIAMETER

Connect drain hose to spout located in door.

Option 2 - Vertical Duct Configuration Dimensions inches

 

STALE

FRESH AIR

 

 

 

AIR TO

FROM

STALE AIR

 

 

OUTSIDE

OUTSIDE

HANGING STRAPS

 

 

 

TO OUTSIDE

 

 

 

 

 

 

 

STALE AIR

 

 

 

 

FROM BUILDING

 

22”

(559 mm)

 

 

 

 

 

 

FRESH AIR

 

 

 

 

TO BUILDING

FRESH AIR

 

 

 

 

 

 

 

 

FROM OUTSIDE

 

 

25 1/8”

 

 

 

 

(637 mm)

 

STALE AIR

 

SIDE VIEW FOR VERTICAL MOUNT

 

 

 

FROM BUILDING

 

SERVICE CLEARANCE FROM BOTTOM

 

 

 

OF UNIT IS MINIMUM 3’0”

 

 

1/8”-9

mm)(232

 

 

 

ALL DUCT COLLARS ARE 5” (127 mm) DIAMETER

ACCESS DOOR

TOP VIEW FOR VERTICAL MOUNT

“L” BRACKETS

(not included)

May be installed if wall mounting is desired for the vertical installation.

FRESH AIR

TO BUILDING

Connect drain hose to the two field installed spouts located on the bottom of the unit.

The HRV can be installed horizontally or vertically as illustrated on the following pages. The unit should be suspended using the provided hanging straps. The unit must be level for proper condensate drainage.

Sufficient clearance below the access door is required for servicing the air filters and core. A minimum of 25" (635mm) clearance is recommended so the door can be removed. Four PVC reinforced polyester hanging straps are provided for hanging the HRV.

11

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