Tjernlund X2R User Manual

INSTALLATION INSTRUCTIONS

MODEL X2R

OWNER'S INSTRUCTIONS, DO NOT DESTROY

Copyright © 2014, Tjernlund Products, Inc. All rights reserved. P/N 8504202

THIS DEVICE MUST BE INSTALLED BY A

QUALIFIED PERSON.

READ INSTRUCTIONS CAREFULLY PRIOR TO

INSTALLATION AND OPERATION OF THE XCHANGER.

REV. A 07/14

TJERNLUND PRODUCTS, INC.

1601 Ninth Street • White Bear Lake, MN 55110-6794
PHONE [phone] • [phone] • FAX [phone]
Visit our web site • www.tjernlund.com

1

TABLE OF CONTENTS

Descriptions and Specifications.......................................................................................................................................1

Installation Restrictions....................................................................................................................................................1

Cautions .......................................................................................................................................................................1-2

Recommended Methods and Patterns of Operation....................................................................................................2-3

Recommended Installation and Termination Locations................................................................................................3-4

X

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Installation..............................................................................................................................................4-6

Maintenance ....................................................................................................................................................................6

How to Obtain Service & Warranty ..............................................................................................................................6-7

Replacement Parts & Accessories ..................................................................................................................................7

X

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is a trademark of Tjernlund Products, Inc.

Tjernlund Products welcomes your comments and questions. Call us at [phone], [phone], Fax [phone], email us
at [e-mail] or write to: Customer Service, Tjernlund Products, Inc., 1601 Ninth Street, White Bear Lake, MN 55110-6794.

DESCRIPTION

The XCHANGERTMmodel X2R is a dual fan mechanical ventilator capable of exhausting inside air, providing fresh outside air or provid­ing a balanced air exchange. The fans can be independently switched on or off or be easily reversed to provide fresh outside air or
exhaust inside air. The X

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can be operated by a standard plug-in timer or Tjernlund’s optional DH2P dehumidistat control
which operates the fan(s) based on the relative humidity sensed inside the home. The DH2P control includes an “On” setting that will
operate the fan(s) continuously or it can be turned “Off” so the fan(s) do not operate during undesirable seasons.Tjernlund’s optional
SCP speed control kit is also available to vary speed of fans if desired. See accessories on page 7.

X2R SPECIFICATIONS

GENERAL INFORMATION

Each XCHANGERTMis electrically factory line tested before shipment. After opening carton, Inspect thoroughly for hidden damage.

INSTALLATION RESTRICTIONS

WARNING: Improper installation, adjustment, alterations, service or maintenance can cause injury or property damage. Refer to

this manual. For assistance or additional information consult a qualified installer, service agency or the equipment supplier.

WARNING: Sufficient air is needed for proper combustion and exhausting of gases through the flue (chimney) of fuel burning equip-

ment to prevent backdrafting. Follow the heating equipment manufacturer’s guideline and safety standards such as those
published by the National Fire Protection Association (NFPA), and the American Society for Heating, Refrigeration and
Air Conditioning Engineers (ASHRAE), and the local code authorities.

WARNING: Do not exhaust air from mechanical room unless makeup air is also supplied or equipment in mechanical room is sealed

combustion. Carbon monoxide poisoning may result. Use the DT2-6 6” duct take-off kit so exhaust can be removed from
outside the mechanical room if necessary.

Observe proper location of hood as described on page 3. The X

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must only be installed with the hood on an exterior wall.

Do not discharge intake air onto water pipes or other equipment which may be affected by temperature extremes.

CAUTIONS

WARNING: Failure to install, maintain and/or operate the XCHANGERTMin accordance with manufacturer’s instructions may result in

conditions that can produce bodily injury and property damage.

MODEL X2R XCHANGER

Rough-in Wall Opening Dimensions:

13 1/4” x 6 1/2” Oval opening - utilize included template

8061034

FLEXIBLE TUBING

NOMINAL 6" DIAMETER

BY INSTALLER

1 FAN 2 FANS

Voltage 120 120

Watts 20

40

Amps 0.3

0.6

CFM 90

180

2

Disconnect power supply to fans and/or accessory controls when reversing fan direction or servicing the XCHANGERTM. Failure to do
so may result in personal injury and/or equipment damage.

Make certain the power source is adequate for the X

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requirements. Do not add the XCHANGERTMto a circuit where the

total electrical load is unknown.

TJERNLUND OPTIONAL DH2P DEHUMIDISTAT CONTROL MODULE OPERATION

The DH2P control module includes an adjustable dehumidistat control which activates the fan(s) if the relative
humidity rises above the selected set-point. It is generally recommended to maintain a Relative Humidity (RH)
below 60% to inhibit mold growth. The dehumidistat can be turned fully clockwise to the ‘on’ position for con­stant fan(s) operation or it can be turned fully counter-clockwise to ‘off’ during seasons or times when it is not
desired for the X

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fan(s) to run. Each fan can be independently turned on/off by its fan switch on control

module.

STANDARD PLUG-IN TIMER OPERATION

A standard adjustable timer can also be utilized for timed operation of the XCHANGERTMfan(s). Plug timer into standard outlet and
plug XCHANGERTMfans into wall timer.

TJERNLUND OPTIONAL SCP SPEED CONTROL OPERATION

Tjernlund’s optional SCP speed control can be used to vary the speed of the XCHANGERTMfans. Plug SCP speed control into stan­dard outlet and plug XCHANGERTMfans into SCP speed control.

RECOMMENDED PATTERNS OF OPERATION

If using the optional DH2P dehumidistat control, the X2R fans can be cycled automatically based on the relative humidity level of the
house or it can be operated based on recommendations below. It is generally recommended to maintain a Relative Humidity (RH)
below 60% to inhibit mold growth.

A standard plug-in wall timer can be programmed based on the lifestyle or needs of the occupants. For example, a family with smok­ers may want to cycle the X

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more frequently than a family of non-smokers.

Another timed method may be to cycle the X

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during peak usage of exhaust fans, such as bathroom, kitchen, laundry or

utility. Outdoor air should be brought in at these peak times to help balance out pressure inside the house.

The X

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can be cycled on and off at regular intervals to periodically provide fresh air to the home, exhaust stale air or have
one fan bring air in and the other fan exhaust air for a balanced air exchange. It can also be ran like an economizer to bring outside
air in during evening time when it is cooler outside.

HYPOTHETICAL XCHANGER OPERATION BASED ON LIFESTYLE

The example below shows a possible way in which cycling times of the XCHANGERTMmay be determined based on household
occupant lifestyles.

6:00 A.M. to 9:00 A.M. = Outside fresh air should be brought into the house to compensate for morning routines. Bathing, cooking,
laundry and other activities such as smoking necessitate that outside fresh air to be brought in. Depressurization of the house at these
times is common with many exhaust fans running at one time.

9:00 A.M. to 4:00 P.M. = House is normally vacant with occupants at work or school. Cycle X

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on and off for 15 minute

intervals per hour to assure fresh air is supplied to the house.

4:00 P.M. to 8:00 P.M. = Outside fresh air should be brought into the house to compensate for evening routines. Bathing, cooking,
laundry and other activities such as smoking necessitate that outside fresh air to be brought in. Depressurization of the house at these
times is common with many exhaust fans running at one time.

8:00 P.M. to 6:00 A.M. = All members of the household are usually present. Outside fresh air is needed to dilute occupant generated
carbon dioxide during sleeping. Cycle X

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on and off for 15 minute intervals, with occasional 30 minute intervals to assure

fresh air is supplied to house.