Vestfrost NFG 309 User manual

Brand: Vestfrost

Model: NFG 309

Type: User manual

Service manual NFG 309

Upright freezer

20-06-2006Page 2

3-star freezer ***

The freezer is approved for long term storage at -18°C

At an ambient temperature of 25˚C and when the thermostat knob

is set at 7 (coldest), the lowest possible temperature of the upright is

-25˚C

Please note: Only 4-star freezers are approved for freezing fresh

food products.

Load label

Maximum load

20-06-2006Page 3

NOTE!

Reversing door fitted with door closer - top

Reversing door fitted with door closer - bottom

Mounting of door fitted with door closer - hinged left

Dismounting of lamp screen, fluorescent tube, starting switch and fixture

Access to evaporator, bimetallic thermostat, heating element, and ventilator

Timer, description

Motor compartment, description

Access to electric panel

Vacuum valve, gasket, lock, air channel, thermostat sensor, and ice pack.

Functional description of NFG 309

Wiring diagram 1

Wiring diagram 1A

20-06-2006Page 4

20-06-2006Page 5

Reversing door fitted with door closer - top

1. Open door and loosen 2 screws below the top panel

(Do only loosen)

2. Hereafter, dismantle top panel from the electric panel.

Before proceeding to the next step, you should lie down

the upright on the back plate. This makes reversing the

door easier and more safe!

3. Unscrew two 4 mm screws.

Remember to hold down the hinge,

because this is tightened by the

spring on the door .

4. The hinge will swing out to the left

if the upright is hinged right.

Can following be dismounted.

5. Pull pin free

6. Spring Bush

Remember that all parts are to be used at the opposite side, however,

a new hinge is necessary.

Left top hinge for door closer 0-A1040020303

Right top hinge for door closer

0-A1040020203

20-06-2006Page 6

1. Unscrew 2 screws in kick plate

2. Dismantle kick plate from the cabinet and dismount

screw for spring and screw for wire clamp, and pull

plug from connector. Hereafter, pull wire free through

the hole in the kick plate.

3. Dismount bottom hinge

4. Also, dismount lock fittings on the opposite side.

Rotate through 180˚ and refit on the opposite side.

Bottom hinge has been

made ready for mounting

on the opposite side, rotate

through 180˚

Reversing door fitted with door closer - bottom

20-06-2006Page 7

Mounting door fitted with door closer – hinged left

1. Mount bottom hinge.

2. Mount spring, wire clamp, and plug.

3. Mount wire clamp and kick plate.

4. Push torsion spring and bush into the door, mount pin!

Spring Bush Pin

5. Mount top hinge on pin as shown on the photo.

Push the hinge counter clockwise in order to tighten

the spring.

6. Adjust door and mount top hinge.

Left top hinge for door closer

0-A1040020303

20-06-2006Page 8

1. Push lamp screen to the left.

2. Dismantle lamp screen from socket

3. Turn fluorescent tube and dismantle from sockets.

4. Starting switch (electronic).

5. Unscrew 2 screws and pull fixture free.

Dismounting of lamp screen, fluorescent tube, starting switch, and fixture

20-06-2006Page 9

Access to evaporator, bimetallic thermostat, heating element, and ventilator

1. Unscrew 2 screws from evaporator casing.

2. Carefully, tip evaporator casing and

remove heat shield (EPS).

3. Location of bimetallic thermostat.

4. Dismount plastic rivets

to access heating

element and evaporator.

Push out pin completely and

dismount entire plastic rivet.

5. Heating element is fitted below the evaporator.

6. Dismount plastic rivets in

evaporator shield and the

ventilator can be accessed.

Switch – door

heat

Switch –

ventilator

Switch -

heating element

20-06-2006Page 10

Bimetallic thermostat for evaporator ventilator. Ventilator only operates when the door

is shut. Cuts in at -2˚C and cuts out at +13˚C

Bimetallic thermostat switches off door heat during defrosting.

Cuts in at -2˚C and cuts out at +13˚C

Wire comes back to transformer, door heat (cutting off of current/signal from

bimetallic thermostat)

24 V for ventilator from transformer.

Bimetallic thermostat for heating element.

Cuts out current to heating element

at +13˚C and starts the timer.

Wire from internal ventilator (3 in one

frame).

Wire from heating element.

Wires from terminal box

rd wh li

Description of timer

20-06-2006Page 11

Terminal box

Transformer

Wire for timer

Mains lead Transformer

Compressor

Tray for defrost water

Capacitor and ventilator

Compressor

Refrigerant

Wire from trans-

former to door heat

0-721401001

Wire from transfor-

mer to timer.

0-721400901

0-7038635

Wire from transformer to timer

Door heating, wire

Ventilator, wire

Motor compartment description

20-06-2006Page 12

BLACK (4)

RED (6)

BROWN(3)

Thermostat

A. Dismount top panel

B & D. Loosen 4 mm screws

C. Dismount 4 mm screw

E. Dismantle electric panel

F. Remove thermostat knob from

the thermostat

G. Dismantle switch from the panel.

H. Light switch can be removed

from the electric panel from

behind

I. Thermometer can be removed

from the electric panel from

behind.

Access to electric panel

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Vacuum valve, gasket, lock, air channel, thermostat sensor, and ice pack.

Vacuum valve

On back plate In inner container

Lock

Lock fitting Lock mounted

Gasket can be dismantled from profile in aluminium frame

Air channel, thermostat sensor, and ice pack

Clamp retainer together

and pull out channel! Thermostat sensor

Ice pack, mounted.

Dismounted (backside)

20-06-2006Page 14

Functional description of NFG 309

Ventilator in evaporator casing (3 in one frame) only operates when the door is closed or

when pressing and holding the door switch. A bimetal thermostat fitted on the evaporator

ensures that the ventilators do not start until the evaporator is cold. App. -2˚C. Therefore, it

is to be anticipated that it takes app. 20 minutes before the ventilators are operating after the

first start-up with a warm upright, also, it can take up to 7 minutes after defrosting has been

carried out.

The ventilators in the motor compartment (4 in one frame) are operating continuously. When

installing the upright it is to be ensured that the heat from the compressor can circulate

unhindered, as described in the instruction manual.

Defrosting is carried out at intervals of 12 hours of compressor operation. When defrosting is

started, the timer cuts out the power for the compressor, cuts in the power for the heating

element and the timer motor stops operating.

The heating element is fitted below the back part of the evaporator. A bimetal thermostat

fitted on the front of the evaporator cuts out the power for the heating element at +13˚C and

defrosting stops. Hereafter, the timer motor starts operating. This occurs after app. 15-30

minutes heat-up depending on the amount of frost on the evaporator. When the timer motor

has operated app. 6 minutes, the compressor starts.

Door heating. A bimetal thermostat fitted on the evaporator ensures that there is no heat in

the glass unless the evaporator is cold. The bimetal thermostat cuts in at -2˚C and cuts out

at +13˚C.

20-06-2006Page 15

HSU terminal

Foam led

ye-gn

Top panel

20-06-2006Page 16

0-10.06.047-C

W ire - diagram

Date: 04.05.2006

ye-gn

heating - glass door

NFG 309

ye-gn

Mains led

To Nofrost box

heating element

ye-dn

To nofrost box

protector

Pos. no. 2

From trafo plate

Fan

Pos. no. 1

ye-gn

HSU terminal

ye-gn

N o frost B ox

Timer

Relay

Timer

Motor

Vestfrost NFG 309 User manual

Vestfrost NFG 309 User manual

Vestfrost NFG 309 User manual

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