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Bryant ERVBBLHA Series Installation Instructions Manual Download Page 9

9

Be sure to unplug and inspect the unit before proceeding with these steps. Start with problem 1, then problem 2 and so on.

Table 6 – Troubleshooting

Problem:

Possible causes:

You should try this:

1. Unit does not

work.

S

Erratic operation of the electronic

circuit.

S

Unplug the unit. Wait for 30 seconds. Plug it back in.

S

The breaker in the electrical panel

may be tripped.

S

Reset breaker. If it trips again, unplug the unit and call an electrician.

S

The door switch may be defective

S

Using a multimeter, check for power across the switch (the door switch

must be pushed in for this test). If there is no power, replace the switch.

S

The circuit board may be

defective.

S

Jump “B” and “G” (BLACK and GREEN). If unit

switches to high speed, remove the wall control
and test it right beside the unit using another
shorter wire. If the wall control works there, change
the wire. If it does not, change the wall control.

S

The fan motor may be defective.

S

Unplug the unit and disconnect the fan motor (4 wires). Supply 120 V

directly to the GREY and ORANGE wires of the fan motor. Replace the
motor if not working.

S

The 9--pin connector may have a

loose connection.

S

Unplug the unit and check to make sure all the crimp connections are

sound. Check the fan motor and the damper actuator connections as well.

2. The damper

actuator does not

work.

S

The 9--pin connector may have a

loose connection.

S

Unplug the unit and check to make sure all the crimp connections are

secured. Check the damper actuator connections as well.

S

The damper actuator may be

defective.

S

Feed 120 V directly to the damper actuator. If the problem persists,

replace the damper actuator.

S

The circuit board may be

defective.

S

Replace the circuit board if the problem is not solved by the above.

3. The wall control

will not work.

S

The wire in the wall OR the wall

control may be defective.

S

Remove the wall control and test it right beside the unit using another

shorter wire. If the wall control works there, change the wire. If it does
not, change the wall control.

S

The wires may be in reverse

position.

S

Ensure that the color coded wires have been connected to their

appropriate places.

S

The wires may be broken.

S

Inspect every wire and replace any that are damaged.

S

There may be a short--circuit.

S

With the help of a multimeter, check for continuity.

4. The 20--minute

lighted push--

button switch
doesn’t work OR
its indicator light

doesn’t stay on.

S

The switch may be defective.

S

The wires may be defective OR

may not be connected properly.

S

Jump the OL and OC terminals. If the unit switches to high

speed, then the wires are not the problem. Replace the
push--button.

S

Ensure that the color--coded wires have been connected to

their appropriate places.

5. The defrost cycle

does not work

(the fresh air
duct is frozen
OR the fresh air

distributed is
very cold.)

S

Ice deposits may be hindering the

damper operation.

S

Remove the ice.

S

The damper rod or the port damper

itself may be broken.

S

Inspect these parts and replace if necessary.

S

The damper actuator may be

defective.

S

Plug in the unit and select “OFF”. Press the door switch and see if the

port damper closes. If it does not close, feed 120V directly to the damper
actuator. If the port damper still does not close, replace the damper
actuator.

S

The circuit board may be

defective.

S

Unplug the unit. Unplug the defrost sensor wire (see J4 on electrical

diagram). Plug the unit back in. Select “MIN” and make sure the unit is
adjusted for low speed operation. Wait 3 minutes. The unit should switch
to high speed and the damper at the fresh air intake port should close
(defrost mode). If this does not happen, then replace the circuit board.

S

The thermistor may be defective.

S

If the defrost mode works well after having disconnected the thermistor

wire (above test), this means the thermistor is probably defective. It
should be replaced.

ER

V

Summary of Contents for ERVBBLHA Series

Page 1: ...CAUTION These words are used with the safety alert symbol DANGER identifies the most serious hazards which will result in severe personal injury or death WARNING signifies hazards which could result in personal injury or death CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage NOTE is used to highlight suggestions which will result...

Page 2: ... air pickup registers throughout the home Fresh air registers are normally located in bedrooms dining rooms living rooms and basements It is recommended that registers be placed 6 to 12 152 to 305 mm from the ceiling on an interior wall and airflow directed toward the ceiling If registers are floor installed airflow should be directed toward the wall A92269 Fig 4 Chain Spring Installation CARBON M...

Page 3: ...g between ERV and exterior wall Fresh air intake and stale air exhaust must be separated by at least 6 ft 1 8 m Fresh air intake must be positioned at least 10 ft 3 m from nearest dryer vent furnace exhaust driveway gas meter or oil fill pipe Fresh air intake must be positioned as far as possible from garbage containers and potential chemical fumes When possible it is advised to locate the intake ...

Page 4: ...35 45 4 F 20 C 30 45 22 F 30 C 25 35 NOTE The ERV may be controlled using the Evolution system control The ERV may be connected using either a NIM or a 4 Zone Damper Module See the appropriate instructions if using the NIM of a 4 Zone Damper Module for connection instructions OneTouch Control The OneTouch control may be used as the primary wall control for the ERV This control will step through th...

Page 5: ...d optimum performance when applying an ERV Unit balancing prevents a positive and or negative pressure within the home Balancing the ERV is done by using balancing dampers in the fresh air intake and stale air exhaust ducts Airflow is determined by temporarily connecting a magnehelic gauge to the pressure taps on ERV See Fig 10 Balancing chart is located on unit door A98400 Fig 10 Magnehelic Gauge...

Page 6: ...h configuration setup shown in Fig 12 under Jumper Table Jumpers are factory set and do not require any changes unless control board is replaced If control board is replaced or unusual start up operation is encountered check jumpers to make sure they are located properly NOTE Power disconnect for 30 seconds is required to reset the CPU when changing jumpers Outdoor Ambient Below 23_ F 5_ C The ERV...

Page 7: ...n outdoor temperature is between 60 F and 75 F 16 C and 24 C and it is dry UNIT COMPONENT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation DO NOT use water to clean core or damage will result In addition before servicing or removing the core inspect the edges to see if they appear soft or slightly expanded This can be normal and due to moisture in t...

Page 8: ...ory connected to electronic control board on HIGH and LOW speed taps of blowers Installer can easily change low speed tap to medium speed tap so electronic control will select between high and medium speed Connections can be changed at motor location see Table 9 and 10 To change low speed to medium speed proceed as follows 1 Unplug unit from 115 VAC 2 Remove filters and core from ERV 3 Slide blowe...

Page 9: ...l may be defective S Remove the wall control and test it right beside the unit using another shorter wire If the wall control works there change the wire If it does not change the wall control S The wires may be in reverse position S Ensure that the color coded wires have been connected to their appropriate places S The wires may be broken S Inspect every wire and replace any that are damaged S Th...

Page 10: ...er Le non respect de ces instructions peut causer un décès ou un choc électrique ADVERTENCIA PELIGRO DE CHOQUE ELÉCTRICO Desconecte el suministro de energía antes de reparar de mantener o de cablear in situ Vuelva a colocar todos los paneles antes de hacer lo funcionar No seguir estas instrucciones puede causar la muerte o choque eléctrico NOTES 1 CONTROLS AVAILABLE SEE THE INSTRUCTION MANUAL 2 IF...

Page 11: ... 11 860 72 22 11 270 74 23 10 750 76 24 10 250 78 26 9 750 80 27 9 300 82 28 8 840 84 29 8 432 86 30 8 042 88 31 7 668 90 32 7 310 92 33 6 993 94 34 6 661 96 36 6 368 98 37 6 085 100 38 5 811 102 39 5 571 104 40 5 313 106 41 5 088 108 42 4 869 110 43 4 660 112 44 4 450 114 46 4 268 116 47 4 019 118 48 3 918 120 49 3 750 Table 9 Factory Set Blower Connection HIGH or LOW Speed Control Module Main El...

Page 12: ... change at any time specifications or designs without notice and without incurring obligations E2009 Bryant Heating Cooling Systems 7310 W Morris St Indianapolis IN 46231 Printed in U S A Edition Date 03 09 Replaces IIERVLHA 01 Catalog No IIERVLHA 02 ERV ...

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