NOFROST REFRIGERATORS WITH ELECTRONIC TIMER
3/29
CONTENTS
1. INTRODUCTION........................................................................................................................................................ 5
2. REFRIGERATION CIRCUIT ..................................................................................................................................... 7
3. ELECTRIC WIRING................................................................................................................................................... 8
4. FUNCTIONAL DIAGRAM ......................................................................................................................................... 9
5. OPERATION ............................................................................................................................................................ 10
5.1
NORMAL............................................................................................................................................................. 10
5.2
NORMAL
WITH
FIRST
SWITCHING
ON
OR
POWER
FAILURE ................................................................... 11
5.3
DEFROSTING .................................................................................................................................................... 12
5.4
NTC
SENSOR
MALFUNCTIONING.................................................................................................................. 13
6. COMPONENTS........................................................................................................................................................ 14
6.1
CONTROL
PANEL
: ........................................................................................................................................... 14
6.2
REFRIGERATOR
COMPARTMENT
:............................................................................................................... 14
6.3
FREEZER
COMPARTMENT
: ........................................................................................................................... 15
6.4
COMPRESSOR
COMPARTMENT
: ................................................................................................................. 16
6.5
ZCP
TERMINAL
BOARD ................................................................................................................................... 17
6.6
ELECTRONIC
BOARD ...................................................................................................................................... 18
7. ACCESSIBILITY ...................................................................................................................................................... 21
7.1.
ACCESS
TO
CONTROL
PANEL...................................................................................................................... 21
7.2.
ACCESS
TO
REFRIGERATOR
COMPARTMENT......................................................................................... 23
7.3.
ACCESS
TO
FREEZER
COMPARTMENT ..................................................................................................... 24
8. TROUBLESHOOTING ............................................................................................................................................ 26
8.1
DRAIN
CIRCUIT: ................................................................................................................................................ 26
8.3
FAILED
DEFROSTING: ..................................................................................................................................... 27
8.4
BURN
OUT
LAMP: ............................................................................................................................................. 27
8.5
MANUAL
DEFROSTING
PROCEDURE........................................................................................................... 28
