Honeywell Home VNT5070E1000 70 cfm Energy Recovery Ventilator Use And Care Manual

Maintenance

Quarterly or as Needed

1 Filters.

Four times per year or as needed, vacuum the filters. Replace filters as needed.

Annually or as Needed

1

Inside the Unit.

Once a year or as needed, clean the interior of the unit (walls and drain pan) with a mild and non abrasive soap. It is recommended to use products that are environmentally-friendly.

2

Energy Recovery Core Unit (VNT5070E1000, VNT5150E1000 and VNT5200E1000) and Heat

Recovery Core Unit (VNT5070H1000, VNT5150H1000 and VNT5200H1000)

Once a year or as needed, vacuum the four surfaces, let soak in warm water and mild soap for 15 minutes, then spray rinse and let dry.

NOTE: See Cleaning Steps on next page for the above maintenance items.

32 TrueFRESH™ ERV/HRV Ventilation Systems 69-2480EF—09

Cleaning Steps

1. Disconnect the AC power from the unit or the

wall.

2. Open the side door panel by opening the two

latches on the top of the side panel and lowering

the panel to its fully open position Remove both

filters from the top left and right sides of the

Core, then vacuum both filters.

Slide out the Core, and clean according to the

instructions on the previous page.

3. Clean inside of unit with a damp cloth and wipe

dry when finished.

4. Replace the Core and the two filters, re-latch the

side panel, then reconnect the AC power to the

unit.

TrueFRESH™ ERV/HRV Ventilation Systems 69-2480EF—09 33

Troubleshooting

CAUTION: Servicing the ERV/HRV unit with its electrical circuitry can cause personal injury. Always make sure that power to the unit is disconnected prior to making any connections. Failure to disconnect the power could result in electrical shock. Service should only be performed by a qualified service technician.

Problem

• No Power to

Unit

• HRV/ERV does not turn on.

• Speed Control green LED light does not come on.

Possible Cause or

Symptom

• Main power is not energized.

• HRV/ERV power cord not fully inserted.

• HRV/ERV or wall control in the OFF position.

• Poor contact between connections on high, low voltage and door switch.

Test Procedure

• Check power connection, fuses or circuit breakers.

• Ensure power cord is firmly inserted.

• Ensure HRV/ERV and or wall controls are in the ON position.

• Remove all controls connection leading to unit.

• Continuity test of the units power cord.

• During motor selection on Speed

Control while in balancing mode unit

(shut off), goes to low speed) or into(INTER mode) once the (+ / - ) buttons are pressed.

• Speed Control board not responding.

• Balancing mode has been locked.

• Un-plug unit for 30 seconds to re-boot.

• Reactivate balancing mode and select motor and press ( + / - ) buttons.

Solution

• Consult certified technician to insure proper installation of main power.

• Remove and re-insert power cord firmly.

• Remove door and locate the area were the switch compresses the door sealant. Insert behind door sealant a metal edge or small screw to insure proper contact between door safety switch and access door.

• Un-plug HRV/ERV, remove access panel from motor mounts and press firmly on all connections.

• Replace AC power cord.

• On the Speed Control press and hold both the ( + / - ) buttons for

15 seconds or until you receive a solid green light. This will reset HRV/

ERV back to factory default mode.

Note: Unit must be rebalanced to ensure maximum performance.

34 TrueFRESH™ ERV/HRV Ventilation Systems 69-2480EF—09

Troubleshooting (continued)

Problem

• HRV/ERV operating only on high speed, no communication between unit & wall controls.

• HRV/ERV supply or exhaust fan runs only on high.

• Motor not functioning.

• Motor failure.

Possible Cause or

Symptom

• Dehumidistat of the wall controls activated.

• T-3 Timer 20/40/60 mins. activated.

• Short circuit between G &

R terminals of

REMOTES on

Speed Control™.

• Faulty wire between control and H/ERV.

• Faulty wall control.

• Failure to the HVC or LVC PCB board.

• Wire connection or wire sequence not corresponding to wiring diagram.

• Run capacitor failure

• Yellow blinking

LED on speed controller.

• Defrost Thermister not properly connected to HVC

Controller

• Defrost Thermister is defective

Test Procedure

• Disconnect all wall controls from unit

• Ensure all other wall controls are not in override mode.

• Inspect the wires to insure not damage.

• Remove wall control and verify it at the H/ERV.

• Resistance test: Unplug H/ERV unit and with a multimeter

– Test the motor resistance

(BLUE & BLACK wires) of the motor. The range should be between 33-39 Ohms

– Then proceed to measure the resistance (BLUE & BROWN wires) the range should be between 56-64 Omhs

• If resistance falls within the above ranges the motor is good.

• If capacitor is swollen or disfigured, it is definitely bad.

• Check amperage in leads going to capacitor when in operation. If capacitor is open, no amperage will flow.

• Remove from circuit and check for short circuits or grounds

(use ohmmeter only).

• Ensure proper connection of thermister.

• Remove access panel to expose HVC controller verify defrost thermister is connected to the “T2” terminal on HVC controller.

• Unplug defrost thermister from HVC controller & check readings with Ohm meter.

Solution

• Ensure all wall controls and Speed Control wire connections correspond to their matching letters

• Ensure no nails, staples or screws are shorting out the wires.

• Replace LVC PCB board, wall control and wires.

• Replace the HVC or LVC

Board

• Correct faulty connection or wire sequence to correspond to the wiring diagram.

• Replace the run capacitor and/or Motor

• If defrost thermister is not connected, please plug-in on

HVC controller on the terminals marked “TEMP

SENSOR”.

• Connect the Ohm meter to red terminal and if receive no readings

0, replace defrost thermister.

TrueFRESH™ ERV/HRV Ventilation Systems 69-2480EF—09 35

Troubleshooting (continued)

Problem

• Exhaust Fan activated

Supply Fan off.

• T-3 Timers not functioning, the

LED remains on with a dim green light.

• T-3 Timers not functioning, display LED light doesn’t appear.

Air is too dry

Possible Cause or

Symptom

• Wiring of fans incorrect on HVC

Controller

• Unit is in its automatic defrost sequence when defrost thermister measures temperature of

-5ºC/23ºF

• T-3 timer wires connections do not correspond to the

Speed Control™. (G

& B connections are inverted)

• HRV/ERV does not operate or respond.

Air is too dry

Test Procedure

• Unplug unit, remove access panel from Exhaust Fan (right motor mount) . Ensure all connections on HVC & LVC board correspond to wiring diagram and that they are securely in place.

• Wait 5 to 10 minutes to ensure unit has completed the defrost sequence.

• Disconnect all wall controls from unit.

• Override TIMER (R & G) connections of the Speed

Control™.

Solution

• Ensure wiring corresponds to wiring diagram.

• Test the defrost thermister with Ohm meter.

• Insure unit completes the defrost sequence is temperature are below -

5°C/23°F.

• Ensure all wall controls wire connection correspond to the Speed

Control™ connections.

(Example: B ►B / G ►G / R ►R

) (Ref: Wall Control Section of the Installation Guide.)

1. Increase humidity level on the dehumidistat.

2. Switch ventilation mode from continuous to intermittent.

3. Install a humidifier.

Air is too humid Air is too humid 1. Reduce the humidity level on the controller.

2. Make sure that the clothes dryer is vented to the outdoors.

3. Wait for outside temperature to change.

For example, it can be very humid at times in the summer.

4. Verify balancing of the

ERV/HRV unit (see

Balancing Steps on page 25).

36 TrueFRESH™ ERV/HRV Ventilation Systems 69-2480EF—09

Honeywell OS and Parts List

Honeywell OS List

Honeywell OS Number Controls Ventilator Type

VNT5070H1000

VNT5070E1000

VNT5150H1000

VNT5150E1000

VNT5200H1000

VNT5200E1000

No

No

No

No

No

No

HRV

ERV

HRV

ERV

HRV

ERV

Parts List

(see illustration on page 38 or 39 for figure number references)

Figure Number Description VNT5070

1

4

5

6

2

3

Polypropylene HRV Core

Enthalpy ERV Core

Replacement Filter Kit

Replacement Motor

Latch & Hinge Kit

Condensation Drain Fitting Kit

50063805-001

9” Core

50063805-002

9” Core

50063805-003

50063805-004

VNT5150

50053952-001

10” Core

VNT5200

50053952-002

15” Core

50053952-003

10” Core

50053952-004

15” Core

50053952-005 50053952-006

5053952-010

50053952-014

50053952-011

50053952-009

7

8

9

10

11

12

Adjustable Hanging Strap Set

(optional on VNT5070)

6" diameter Plastic Keeper N/A

6" diameter Plastic Double Collar N/A

5” diameter Plastic Keeper

5” diameter Plastic Collar

Replacement LVC Electronic

Board (Speed Control)

Replacement HVC Electronic

Board

50063805-006

50063805-005

50063805-010

50053952-008

50053952-007

N/A

N/A

50053952-012

50053952-013

13

14

15

Front Access Door

Mounting Bracket

Matrix Ventilation Hood

50063805-007

50063805-008

50063805-009

50053952-015

N/A

N/A

Parts List

(not illustrated)

Honeywell Part Number

50053952-016

50053952-020

Description

Drain Cap (VNT5150E1000V and VNT5200E1000 only)

20/40/60 Minute Timer

TrueFRESH™ ERV/HRV Ventilation Systems 69-2480EF—09 37

Parts Illustration (VNT5150 and VNT5200)

See the Parts List table on page 37 for items referenced by figure numbers 1 through 11 in the exploded illustration below.

6

3

4

2

4

5

7

8

11

12

3

1

13

M28997

38 TrueFRESH™ ERV/HRV Ventilation Systems 69-2480EF—09

Parts Illustration (VNT5070)

See the Parts List table on page 37 for items referenced by figure numbers 1 through 11 in the exploded illustration below (VNT5150 and VNT5200).

11

4

10

9

14

12

2

1

13

5

3

6 15

NOT SHOWN

M33093

TrueFRESH™ ERV/HRV Ventilation Systems 69-2480EF—09 39