W09Y

Wall mount thermostat with defrost

- Wall mount thermostat 122 x 75 mm
- Up to 3 Configurable probe inputs
- Up to 3 relay outputs
- Several defrost activation
   and defrost methods including
   “Dynamic Defrost Interval system”
- 1 display, 3 digits, 15.5 mm
      Red or blue colour

Process inputs:

up to 3 temperature probe inputs

(Note 1)
- PTC KTY81-121 (990 Ω @ 25 °C)
- NTC 103AT-2 (10KΩ @ 25 °C)
Overall accuracy: ± 0,5 % fs + 1 digit

1 digital input

(Note 1)
- Free Voltage

Keyboard

- Mechanical keyboard:
4 multifunction keys

Process outputs

Up to 3 digital outputs

OUT1
- Relay SPST-NO 14A-AC1
   ( 6AAC3 250 VAC, 1 HP 250 VAC, 1/2 HP 125 VAC)
OUT2
- Relay SPDT 8A-AC1
    (3A-AC3 250 VAC, 1/2 HP 250 VAC, 1/3 HP 125 VAC)
OUT3
- Relay SPST-NO 4A-AC1
    ( 2A-AC3 250 VAC, 1/8 HP 250-125 VAC)
(Note 2)
- Internal buzzer

Power supply:

- 100… 240 Vac (50/60 Hz) ± 10%

Functions

- Stand-by mode
- ON/OFF control
- Start-up delay
- Real Time Clock for up to 98 weekly events
- Compressor protection timer

Defrost

Defrost start/stop:
- Manual
- Time based
- Temperature driven
- DYNAMIC DEFROST INTERVALS SYSTEM
Defrost methods:
- By compressor stop
- By electrical heater
- By hot gas
- By cycle reverse
Evaporator Fan Control

Alarms

Up to 3 different kind of configurable alarms:
- Probe errors
- Temperature thresholds: (absolute or relative)
- External alarm
- Door alarm

Communication and programming:

Interfaces

Communication on TTL port to: 
- Universal programming key

Programming/configuration tools:

- Easy to use front interface for configuration
- Configuration software available for PC

Installation

Mounting method: wall mount
Case dimensions: 75 x 122 mm, depth 34 mm
Cables outlet: on the back side or lateral side by PG9 cable gland

Connections

Signals connection
- 2,5 mm² screw terminals block

Display and indicators

1 display 3 digits, h 15.5 mm
      Red or blue colour
8 indicating LEDs

Connectable to:

- Programming key A01 for PC connection, backup and other functions

Notes

1) The third probe input may be used as Free voltage digital input
2) 16 A Max. on common line (Terminal 12)