Envision controls cont, Envision console - 50 hz installation manual, Logic board dip switch settings – WaterFurnace Envisio Series Console User Manual

Page 29: Normal control timing operational logic, Test control timing, Diagnostic modes

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29

ENVISION CONSOLE - 50 HZ INSTALLATION MANUAL

Envision Controls cont.

Mode

Inputs

Blower

Comp

RV

Htg

Y

ON

ON

OFF

Clg

Y,O

ON

ON

ON

Blower

G

ON

OFF

OFF

Switch

OFF

ON

SW1 - 1

Test - Selected timings sped up to facilitate troubleshooting

Normal - Standard timings

SW1 - 2

Loop - Closed loop freeze detection setting (-9°C)

Well - Open loop freeze detection setting (-1°C)

SW1 - 3

Commercial - Enables NS features when TA32U02 thermostat is used

Normal - Standard thermostat operation

SW1 - 4

IO Display* - Enables Input/Output display on external LED board

Normal* - Unit status display

SW1 - 5

Configures board for 2-speed compressor without blower

Configures board for 2-speed compressor with blower

Logic Board DIP Switch Settings

Blower off delay

30 seconds

Compressor on delay

10 seconds

Short cycle delay

5 minutes

Miniumum compressor on time

2 minutes (except for fault condition)

High pressure fault recognition delay

Less than 1 second

low pressure fault recognition delay

30 seconds

Freeze detection fault recognition delay

30 seconds

Condensate overflow fault recognition delay

30 seconds

Low pressure fault bypass delay

2 minutes

Freeze detection fault bypass delay

2 minutes

Power on delay

5 minutes

Normal Control Timing

Operational Logic

Blower off delay

5 seconds

Compressor on delay

2 seconds

Short cycle delay

15 seconds

Miniumum compressor on time

5 seconds (except for fault condition)

High pressure fault recognition delay

Less than 1 second

low pressure fault recognition delay

30 seconds

Freeze detection fault recognition delay

30 seconds

Condensate overflow fault recognition delay

30 seconds

Low pressure fault bypass delay

0 seconds

Freeze detection fault bypass delay

0 seconds

Power on delay

15 seconds

Fault off time

5 minutes

Test Control Timing

LED

Current Fault Status

SW1 - #4 On, SW2 On

Inputs

SW1 - #4 Off, SW2 Off

Outputs

SW1 - #4 Off, SW2 On

Drain

Drain pan overflow

Y

Compressor

Water Flow

FS thermistor (loop <-9°C, well <-1°C)

G

Blower

High Press

High pressure >4130 kPa

O

O

Low Press

Low pressure <275 kPa

ES

ES

Air Flow

Not used

NS

NS

Status

Not used

LS

LS

DHW Limit

Not used

Not used

Not used

HWD

SW2 in the On position

Off position

On position

Diagnostic Modes

Control Tables for Optional Versatec Microprocessor

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