WaterFurnace Envision Low Sill - Manual (Page 25)

25
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Wiring Schematics cont.
CC Relay
Blower Relay
CC
CCG
C
C
R
R
Blower Blower COM
R C Y O G LO ES
P3
P1
SW1 Microprocessor
Logic Control
17P529A01
P2
6
1
7
2
8
3
9
4
10
5
Versatec Logic Board Physical Layout Normal Mode Control Timing Table
Blower off delay
Compressor on delay
Compressor short cycle delay
Minimum compressor on time
High pressure fault recognition delay
Low pressure fault recognition delay
Condensate overflow fault recognition delay
Low pressure fault bypass delay
Freeze sensing fault bypass delay
Power on delay
Freeze sensing fault recognition delay
30 seconds
10 seconds
5 minutes
2 minutes (except for fault condition)
Less than 1 second
30 seconds
30 seconds
30 seconds
2 minutes (for first fault only, 0 sec after)
2 minutes (for first fault only, 0 sec after)
5 minutes
Test Mode Control Timing Table
Blower off delay
Compressor on delay
Compressor short cycle delay
Minimum compressor on time
High pressure fault recognition delay
Low pressure fault recognition delay
Condensate overflow fault recognition delay
Low pressure fault bypass delay
Freeze sensing fault bypass delay
Power on delay
Freeze sensing fault recognition delay
Fault off time
5 seconds
2 seconds
15 seconds
5 seconds (except for fault condition)
Less than 1 second
30 seconds
30 seconds
30 seconds
0 seconds
0 seconds
15 seconds
5 minutes
Operational Logic Table
Mode
Htg
Clg
Inputs Blower Comp RV
Y
Y,O
Blower G ON
ON
ON
OFF
ON
ON
OFF
ON
OFF
SW1-4 On, SW2 Off
Drain pan overflow lockout
FS thermistor (loop<=15°F, well<=30°F) lockout
High pressure lockout
Low pressure lockout
Not used
Microprocessor malfunction*
Not Used
SW2 status (Off=down position,On=up position)
Drain
Water Flow
High Press
Low Press
Air Flow
Status
DHW Limit
HWD
LED Normal Display Mode
SW1-4 On, SW2 On
Drain pan overflow
FS thermistor (loop<=15°F, well<=30°F)
High pressure
Low pressure
Not used
Not used
Not used
SW2 in the On position
Current Fault Status
SW1-4 Off, SW2 Off
Y
G
O
ES
Not Used
Not Used
Not Used
SW2 in the Off position
Inputs
Compressor
Blower
O
ES
Not Used
Not Used
Not Used
SW2 in the On position
Outputs
Diagnostic Modes
SW1-4 Off, SW2 On
Drain
Water Flow
High Press
Low Press
Air Flow
Status
DHW Limit
HWD
LED
LED Display Mode Table
*Flashing Status light indicates microprocessor is functioning properly. Solid "on" indicates a
microprocessor malfunction.
Switch OFF ON
SW1 - 1
SW1 - 2
SW1 - 3
SW1 - 4
SW1 - 5
SW2
Test Mode - Selected timings sped up to
facilitate troubleshooting
Loop - Closed loop freeze sensing
setting (15°F)
IO Display* - Enables Input/Output display
on external LED board*
Commercial - Enables NS features when
TA32U02 thermostat is used
Split Mode – Dual-Speed-Compressor
and with No blower
OFF* - Normal or Input display mode
activated
Normal Mode - Standard timings
Well - Open loop freeze sensing setting
(30°F)
Normal* - Unit status display
Normal - Standard thermostat operation
Normal - Single-Speed Compressor
with blower
ON* - Current fault or Output display
mode activated
* Refer to LED Display Mode table for position of SW1-4 and SW2
Logic Board DIP Switch Settings
Versatec Control Board