System air Fantech SHR Series User manual

SHR • VHR Series

Heat Recovery Ventilators

Operation Manual

Item #: 405191

Rev Date: 2016-06-13

SHR 1504 • SHR 1505 R(D) • SHR 2004 • SHR 2005 R(D) • SHR 3005 R • SHR 3205 RD

VHR 2004 • VHR 2005 R • VHR 704

Fantech reserves the right to modify, at any time and without notice, any or all of its products’ features, designs,

components and specifications to maintain their technological leadership position.

Please visit our website www.fantech.net for more detailed technical information.

United States

10048 Industrial Blvd., Lenexa, KS, 66215

Tel.: 800.747.1762 • Fax: 800.487.9915

Canada

50 Kanalflakt Way, Bouctouche, NB, E4S 3M5

Tel.: 800.565.3548 • Fax: 877.747.8116

Understanding Fantech Models Numbers

Example 1: Example 2:

VHR 1404 = SHR 2005R =

Vertical Ports Side Ports

Heat Recovery Ventilator Heat Recovery Ventilator

Remote Controls Remote Controls

Recirculation

VHR 1404 SHR 2005 R

CFM # Ports CFM # Ports Recirculation

Table of content

INTRODUCTION

What are HRVs? ......................................................................3

How do they work? ....................................................................3

Port configuration .....................................................................3

OPERATION ................................................................................4

Modes of operations ...................................................................5

OPTIONAL REMOTE CONTROLS ..................................................................6

MAINTENANCE ..............................................................................7

TROUBLESHOOTING ......................................................................... 8

HRV MAINTENANCE CHART ....................................................................9

What are HRVs?

To understand these products and their functions, here are a few

things to remember.

Heat Recovery Ventilators (HRVs)

are recommended for colder areas of the country that have longer

heating seasons as well as drier desert areas of the South.

Heat Recovery Ventilators are complete whole house ventilation

systems that incorporate a supply fan and an exhaust fan in one

unit. The supply fan draws fresh air in from the outside and the

exhaust fan pushes stale contaminated air out. The two air streams

are separated by a heat recovery core which tempers the air,

making it the most comfortable solution for a healthy indoor

environment.

For information on how these units can help you save energy and

lower heating or cooling costs, read “How Do They Work?”.

Port Configuration

Five Port Models feature motorized damper for recirculation mode and defrost. Positive shut off of supply port when unit is in standby.

Four Port Models provide constant ventilation even in defrost mode without the need for additional parts. An exhaust only (fan shut down) defrost

strategy is an effective method at an affordable price.

Note Warning/

Important

note

Information Technical

information Practical tip

How do They Work

Heat Recovery Ventilators (HRVs)

An HRV is designed to be a cost-effective and reliable way to bring a

continuous supply of fresh air into a home while exhausting an equal

amount of contaminated air. If it is properly maintained, an HVR can

meet a home’s total ventilation requirements by itself. HRVs use

what is called a “sensible” heat recovery core. This special aluminum

core transfers heat from the exhaust air stream to the incoming air

stream. Fresh incoming air is tempered by the heat that is

transferred from the outgoing air so you save on energy costs.

Fantech HRVs are equipped with automatic defrost mechanisms so

even if you live in the coldest climates, you can use your HRV all

year long.

Fresh Air

from Outside

Fresh Air to

Inside

Exhaust Air to

Outside

Exhaust Air

from Inside

Operation

Winter:

Humidity control is very important during the winter months. This is when problems will be most apparent

since condensation on the windows will often occur. The colder the outside temperature, the greater the risk

of condensation in the home. The average relative humidity should be maintained between 30-60% to avoid

condensation. Low speed continuous ventilation with high speed override is recommended.

A Heat Recovery Ventilator (HRV) is designed to bring fresh air into a building while exhausting an equal amount of stale air. During the winter

months, the incoming cold fresh air is warmed by utilizing the heat recovered from the stale air before it is exhausted to the outdoors. During

summer months when the indoor space is air conditioned, the HRV will help in cooling the incoming fresh air using the stale air that is being

exhausted.

Fantech HRVs are designed to run continously or intermittently, giving the homeowner complete control over their air quality. Continuous low speed

ventilation is recommended, which will help eliminate carbon dioxide, VOCs and other gases as well as freshen up the home. Intermittent high speed

ventilation can be obtained through a variety of optional remote controls found in this manual. Below are some examples of seasonal operation of an

HRV.

Some products may not be exactly as illustrated in the Operation Manual.

Fall:

Rain and rapid temperature changes make it difficult to control the internal humidity level and may result in

condensation on the windows. A remote dehumidistat may help give greater control over the inside

environment.

Summer:

The air is sometimes hot and humid. To stop the warm humid air from entering, set the dehumidistat at its

highest level.

Spring:

Temperatures are more moderate and become warmer each day. To keep the humidity and temperature

uniform, set the dehumidistat higher (if installed). You may also switch the HRV to standby mode if desired.

Some products may not be exactly as illustrated in the Operation Manual.

Modes of Operation

1. Continuous Ventilation Mode

In this mode of operation, both fans are operating and exchanging air

with the outside. The heat recovery ventilator (HRV) constantly

exchanges the air at the rate you select, either at low or medium

speed, and switches to high speed when activated by an optional

remote control. The "Low" and "Med" fan speed selection will cause the

unit to operate in continuous exchange mode at an exchange rate of

35% and 50% maximum airflow rating respectively. Continuous mode is

recommended, since pollutants are slowly but constantly being

generated in your house.

The switch on the side of the unit is used to toggle between STANDBY, LOW speed and MEDIUM speed modes.

In order to activate HIGH speed, a jumper must be placed between the DEHUM + and DEHUM - contacts.

* no exchange of air

Air to

House

Air to

Outside

4. Defrost/Fan shutdown (4 port models)

The automatic defrost cycle for SHR/VHR models of HRVs consists of a

fan shutdown. When the supply air stream temperature goes below

-5°C (23°F), the supply fan shuts down and the exhaust fan goes into

"High" speed. Ambient air is passed through the unit for a period of 5

minutes. The supply fan will then re-start and run at the presetspeed.

The exhaust fan will also slow down to the preset speed, and the unit

will operate in the run cycle for 25 minutes. This fan shutdown defrost

cycle continues until the supply air

stream rises above 0°C (32°F).

3.Defrost/Recirculation Mode (5 port “R” models)

The automatic defrost cycle for SHR R(D) / VHR R models of HRVs

consists of a damper defrost which allows air to recirculate throughout

the unit & home. When the supply air stream temperature goes below

-5°C (23°F), the exhaust fan shuts down, the supply fan goes to "High"

speed, and a damper closes the supply, opening a 5th collar. The

ambient air is then recirculated through the unit & home for a period of

5 minutes.

The unit will then resume normal operation for a time period of 25

minutes. This damper defrost cycle continues until the supply air

stream rises above 0°C (32°F).

2. Intermittent / Standby Mode (SHR(D) / VHR Series of HRVs)

The system is always on standby and operates at high speed when

activated by an optional remote control. "Standby" should be selected if

the user wishes to stop the unit from continuous exchange. We

recommend that the "Standby" mode only be used if your system is

equipped with an optional external control, in which case, the unit would

activate to "High" fan speed, until the control is satisfied and then return

to "Standby" (off).

Air from

House

Air to

House

Air to

Outside

Air from

House

Air from

Outside

Air from

House

Low Voltage Control Systems

* Please see instruction manuals for individual controls for proper wiring and set up of control systems.

CENTRAL CONTROLS – These control options can only be used individually

CONTROLS FEATURES CONNECT TO

ECO-Touch • Our most complete, yet easy to use control system

• Sleek design with backlight touchscreen LCD

• ECO mode selects the best operating mode and speed for the

season, minimizing energy use associated with ventilation

• Set preferred indoor relative humidity range and ventilation

mode for day and night conditions

• No battery to replace, all programmed settings are retained

during power outage

• Maintenance reminder indicator

• Error code messages reduce troubleshooting time

EDF7 • MODE button provides 3 modes of operations: Ventilation ,

Recirculation and Standby

• User selected fan speed: Low, Medium, Normal and 20

minutes per hour

• AUTO setting allows the homeowner to deactivate the

dehumidistat

• When the humidity exceeds the desired setpoint, the venti-

lation system operates at Normal speed.

• Once the desired humidity level is achieved, your ventilation

system resumes to its previous mode of operation

EDF1 • Press button once for continuous LOW speed

• Press button twice and the unit will cycle 20 minutes ON/

40 minutes OFF and repeat

• Press button a third time and the system will run continu-

ously on HIGH speed

AUXILIARY CONTROL – These controls can be paired

RTS2* • 20- minute timer with LED light

• Boosts system to high speed with the touch of a button

• Up to 5 can be used in one system

• Use in bathroom, kitchen, laundry room

RTS3 • Press button once and unit will operate in continuous mode

on HIGH speed for 20 minutes (Green).

• Press button a second time and unit will operate in continu-

ous mode on HIGH speed for 40 minutes (Yellow).

• Press button a third time and unit will operate in continuous

mode on HIGH speed for 60 minutes (Red).

• Press button a fourth time to cancel the timer (LED turns

off).

MDEH1 • Rotary dial Dehumidistat

• Multiple units can be used

• We recommend setting the relative humidity above 80%

during the summer

To avoid window condensation:

• It is not necessary to change

the humidity control every

day. Monitor the average

weekly temperature or

experiment with various

settings until you find a level

that is comfortable for you.

Adjust the control when

needed.

• A dehumidistat is ideal for

use in energy efficient

houses where indoor

humidity (during the

heating season) is higher

than outdoor levels. High

humidity is a major cause

of structure damage and

IAQ problems such as mold

and mildew.

*Maintain polarity

between control

and HRV

(+ →+ ; - → -)

EDF EDF

+T -T

D D

COM

Maintenance

MAKE SURE UNIT IS UNPLUGGED BEFORE ATTEMPTING ANY MAINTENANCE WORK

The following components should also be inspected regularly and well maintained.

Filters

The lters (2) need to be checked and cleaned every

three months or when they appear dirty. Wash in

warm sudsy water (mild detergent) or use a soft

brush vacuum. The lters should be replaced when

they can no longer be cleaned properly.

Heat recovery core

The heat recovery core needs to be checked and cleaned every six months. The core can be cleaned

using a mild soap and water. Rinse thoroughly. Handle with care. Hot water and a strong detergent

will damage the heat recovery core. It is recommended to clean the core in the summer or when the

temperature is mild. Never clean in the heat recovery core in the winter.

Clean Core and Filters Every 3-6 Months.

Unplug unit before doing any repairs or maintenance

a) Open access door.

b) Carefully grip handle of core and pull out. Core will slide out of the channel.

c) Once removed from the cabinet remove lters.

d) Wash core in warm soapy water (do not use dishwasher).

e) Install clean core by:

a) First mounting the bottom ange of the core guide into the bottom channel approximately

1/4” (6mm).

b) Mount the left or right side ange of the core guide approximately 1/4 “ (6mm) followed

by the other side.

c) Mount the top ange of the core guide into the top 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.

f) Install the clean lters.

• To prevent electrical shock,

check that the unit is

unplugged before doing any

repairs or maintenance.

• A yearly inspection is

recommended to ensure the

efciency and trouble-free

use of your system. Run

through the system and

verify the different operating

modes.

The motor – The motors are factory

balanced and lubricated for life.

They require no maintenance.

The unit – The inside of the unit

should be vacuumed yearly. Be

careful not to damage any of

the mechanical components and

electrical connections.

The drain pan and drain line – Units

with drain line should have their line

and connection checked regularly.

Outside hood – The outside hoods

need to be checked every season

to make sure there no leaves

or insects blocking the airow.

Check regularly that they're are no

pollutants near the intake hood.

Make sure they are clear of any

snow accumulation during the

winter months.

Filters need to be checked regularly

Troubleshooting

Problem Causes Solutions

Air is too dry Dehumidistat control is set too low Increase the desired level of humidity. Change ventilation mode from

continuous mode to standby.

HRV out of balance Have contractor balance HRV airows

Air is too humid Dehumidistat control is set too high Reduce the desired level of humidity. Combine this with the use of continuous

exchange mode.

Sudden change in temperature Wait until outside temperature stabilizes (winter). Heating will also improve

situation.

Storing too much wood for heating Store a majority of your wood outside. Even dried, a cord of wood contains

more than 20 gallons of water.

Dryer vent exhaust is inside home Make sure the dryer vent is exhausting outside.

Poor air circulation near windows Open curtains or blinds.

HRV out of balance Have contractor balance HRV airows

Well sealed basement door is closed Open the door or install a grill on the door.

Failed damper system may be stuck in recirculation

mode

Check defrost damper. If damper is always blocking incoming fresh air, have

contractor verify damper system.

Persistent condensation

on window

Improper adjustment of dehumidistat control Reduce the desired level of humidity. Combine this step with use of continuous

exchange mode.

HRV out of balance Have contractor balance HRV

Poor air circulation near windows Open curtains or blinds.

Poor Air Flows 1/4" (6mm) mesh on the outside hoods is plugged Clean exterior hoods or vents

Filters plugged Remove and clean lter

Core obstructed Remove and clean core

Indoor grilles closed or blocked Check and open grilles

Inadequate power supply at site Have electrician check supply voltage

Ductwork is restricting airow Check duct installation

Improper speed control setting Increase the speed of the HRV (i.e. change unit control from REDUCED to NORMAL

speed)

HRV airow improperly balanced Have contractor balance HRV airows

Ducting has fallen down or been disconnected from HRV Have contractor reconnect ducting

Supply air feels cold Poor location of supply grilles, the airow may irritate

the occupant

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

Outdoor temperature extremely cold If supply air is ducted into furnace return, the furnace fan may need to run

continuously to distribute ventilation air comfortably

HRV and/or Ducts frosting up HRV air ows are improperly balanced Have HVAC contractor balance the HRV airows

Malfunction of the HRV defrost system Note: minimal frost build-up is expected on cores before unit initiates defrost

cycle functions

Condensation or Ice Build Up in

Insulated Duct to the Outside

Incomplete vapor barrier around insulated duct Tape and seal all joints

A hole or tear in outer duct covering Tape any holes or tears made in the outer duct covering

Ensure that the vapor barrier is completely sealed.

LED is ashing Everything is in good operations

LED is not ashing No Power is being transmitted to the Control Board Make sure unit is plugged.

Transformer may need replacing.

Note: It is best to get the unit checked by a certied HVAC Contractor/Technician.

Limited Warranty

• The Heat recovery aluminum core

has a Lifetime Limited Warranty.

• The warranty is limited to 5 years on

parts and 7 years on fans from the

date of purchase, including parts

replaced during this time period. If

there is no proof of purchase

available, the date associated with

the serial number will be used for

the beginning of the warranty period.

• The fans found in all Fantech HRVs

require no lubrication, and are

factory balanced to prevent vibration

and promote silent operation.

• The limited warranty covers

normal use. It does not apply to

any defects, malfunctions or

failures as a result of improper

installation, abuse, mishandling,

misapplication, fortuitous

occurrence or any other

circumstances outside Fantech’s

control.

• Inappropriate installation or

maintenance may result in the

cancellation of the warranty.

• Any unauthorized work will result in

the cancellation of the warranty.

• Fantech is not responsible for any

incidental or consequential

damages incurred in the use of the

ventilation system.

• Fantech is not responsible for

providing an authorized service

centre near the purchaser or in

the general area.

• Fantech reserves the right to supply

refurbished parts as replacements.

• Transportation, removal and

installation fees are the responsibility

of the purchaser.

• The purchaser is responsible to

adhering to all codes in effect in his

area.

* This warranty is the exclusive and only warranty

in effect relative to the ventilation system and all

other warranties either expressed or implied are

invalid.

HRV maintenance chart

Maintenance Required Recommended Frequency Date Maintenance Performed

Check and Clean Filters Every 3 months or if

dirty

Check Heat Recovery

Core

Every 6 months

Check Drain Pan and

Lines

Every 3 months

Vacuum the Inside of the

Unit

Annually

Clean and Un-block

Outside

Hoods

Annually

Clean and Inspect Duct

Work

Annually

General Servicing by a

Qualied Contractor

Annually

* Schedule may be altered to meet your own needs. More frequent servicing may be required depending on the

severity of your home's indoor and outdoor environments.

Contractor Telephone Number Date Serviced

Notes

Manuel d’opération

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