Warning, Electrical connections, Accessories – Bryant Energy/Heat Recovery Ventilator ERVBBSVA1100 User Manual

Page 6: Cooling, Boot sequence, Vac wiring, 12vdc wiring, 20 minute timer, 60 minute adjustable timer, Er v /hr v

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DEHUM -- will only turn on if humidity is 3% over setpoint.
The speed is determined by indoor humidity and outdoor

temperature.

Cooling:

AUTO -- the ventilator selects the speed based on indoor
humidity and outdoor temperature. It may cycle on/off every

30 minutes depending on humidity and outside temperature.
LOW -- low speed all of the time.
HIGH -- high speed all of the time.

If the fan speed is set to Auto and the ventilator wants to run, the

fan speed will run at High continuous speed. Otherwise, the fan

will stay at the chosen continuous fan speed.

BOOT SEQUENCE

The unit boot sequence is similar to a personal computer boot

sequence. Each time the unit is plugged after being unplugged, or
after a power failure, the unit will perform a 30--second booting

sequence before starting to operate. During the booting sequence,

the integrated control LED will light GREEN or AMBER for 5
seconds, and then will shut off for 2 seconds. After that, the LED

will light RED for the rest of the booting sequence. During this
RED light phase, the unit is checking and resetting the motorized

damper position.
Once the motorized damper position completely set, the RED light
turns off and the booting sequence is done.
NOTE: No command will be taken until the unit is fully booted.

ELECTRICAL CONNECTIONS

115--VAC Wiring

The ERV/HRV operates on 115VAC. It comes with a power cord

attached to unit and ready to plug into a fused outlet. Unit must be

grounded for proper operation.
All electrical connections must comply with National and Local

Electrical Codes, or other ordinances that might apply.

ELECTRICAL SHOCK / FIRE HAZARD
Failure to follow this warning could result in personal injury,

death and/or property damage.
Do not use an extension cord as a power source for operating

the ERV/HRV.

!

WARNING

12VDC Wiring

The ERV/HRV circuit board, wall control, and accessories operate
on 12VDC. See Wall Control section, item Wiring and Fig. 5 and

10 for more information.

ACCESSORIES

20 Minute Timer

A push button timer can be used to override the wall control and
put the ERV/HRV into high speed for 20 minutes. Connect

switches in parallel and connect leads to ERV/HRV terminals I,
OC, and OL (See Fig. 12). Push button locations are ideal in

special activity areas, such as, bathroom, or kitchen, where

high--speed exhaust operation is needed for a short period of time.
NOTE: The 20 minute timer will not function properly unless
ERV/HRV wall control is applied and working correctly. Timing
function is internal to electronic circuit board, it is activated by a
momentary contact between OC and OL. The I connection is to
illuminate the push button. The maximum number of push button
timers that can be applied is 5.

60 Minute Adjustable Timer

A 60 minute adjustable timer can also be used to override wall

control and put HRV into high--speed operation for a select amount
of time. Connect timer in parallel with push button timers, or to

ERV/HRV terminals OC and OL. (See Fig. 12.)
The 60 minute timer will provide a minimum of 10 minutes, and a
maximum of 60 minutes of ventilation at high speed.

3

4

5

I

OC

OL

YELLOW

BLACK

RED

ELECTRONIC CONTROL

BOARD

BACK OF PUSH BUTTON SWITCH

J3

J1

6

7

8

9

4

1

7

5

2

8

6

3

9

BLACK – (J3- 4)

COMMON

TERMINAL

STRIP

YELLOW – (J3- 3)

INDICATOR

TERMINAL STRIP
RED – (J3- 5)

SWITCH

TERMINAL STRIP

BLACK – COMMON, (J3--4)

YELLOW – INDICATOR, (J3--3)

THE WIRES FROM THE SWITCH

RED – SWITCH, (J3--5)

(OC)

(I)

(OL)

(OPTIONAL)

60 MINUTE TIMER

(OPTIONAL)

PUSH BUTTON SWITCHES

(5 SWITCHES MAXIMUM)

A98386

Fig. 12 -- Push Button Timer Wiring Layout

ER

V

/HR

V

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