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Version No. 1-4 - 28.04.2021

Doc. No. 9942681001

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conditions. Should you still need to change the fan, please take note of the following:

Danger from electrical voltage 
Maintenance work on the unit must be carried out by specialists (qualified electricians). The
personnel must ensure that for the duration of the work the unit and the cabinet are
disconnected from the electrical supply and protected against unauthorized reconnection.

Disconnect the unit from the mains
Remove the unit cover
Remove the fixing screws from the relevant fan
To replace the cold side fan the PC-board must also be removed
Disconnect the fan cable from the PC-board
Mount a new radial fan​

Danger to the unit through incorrect work. 
Make sure that the cabinet fan or the ambient fan are not misplaced in the unit as they are
different. Ensure that the correct polarity is maintained. The fans should have clockwise
rotation.

Replace the 4 fan fixing screws
Connect the fan cable to the PC-board and replace the board if necessary

Dispose the old fan according to the environmental laws and
regulations.

17. Transport & Storage

Malfunction due to transport damage
On delivery the carton box containing the unit must be examined for signs of transport damage. Any transport
damage to the carton box could indicate that the unit itself has been damaged in transit which in the worst case
could mean that the unit will not function.
The unit can only be stored in locations which meet the following conditions:         

temperature range: - 40°C to  + 70°C
Relative humidity (at 25°C): max. 95 %

Returning the unit
To avoid transport damage the unit should be returned in the original packing or in a packing case and must be
strapped to a pallet. If the unit cannot be returned in the original packing please ensure that:

A space of at least 30 mm. must be maintained at all points between the unit and the external packing.
The unit must be firmly fixed in the packing.
​The unit must be protected by shock resistant padding (hard foam corner pieces, strips or cardboard
corner pieces).

Содержание 42681001

Страница 1: ...unctional Principle 4 6 Technical Data 5 7 Mounting 6 8 Condensate management 8 9 Mounting Principle 9 10 Electrical Connection 10 11 Controller Layout Description 12 12 Wiring Diagram 13 13 Taking in...

Страница 2: ...ons in the instruction manual must be adhered to General danger Indicates compulsory safety regulations which are not covered by a speci c pictogram such as one of the following High electric voltage...

Страница 3: ...d with regards to Safety instructions Instructions on taking the cabinet out of operation Instructions on the prevention of unauthorised cabinet reconnection The electric equipment meets the valid saf...

Страница 4: ...vironmental ratings please refer to the type plate data 5 Functional Principle The cooling unit for enclosures works on the basis of a refrigeration circuit consisting of four main components compress...

Страница 5: ...rature Range 10 C 50 C Air Flow Volume System Unimpeded Ambient air circuit 200 450 m h Cabinet air circuit 125 250 m h Mounting Wall mounted Recessed Housing Material Mild steel powder coated Dimensi...

Страница 6: ...irit level that the cabinet is in a horizontal position The max deviation from the vertical or horizontal is 3 degrees Air apertures To provide adequate air circulation and avoid temperature layers fr...

Страница 7: ...the surface of the cabinet and remove the mounting template Stick the self adhesive unit seals on the outer surface of the cabinet for externally mounting and on the inner surface of the cabinet for...

Страница 8: ...The condensation drain pipe should be attached as required e g in conditions of high humidity To install an oel cleaning drain 2 pipe please follow below steps Remove the plastic stopper from in the b...

Страница 9: ...8 04 2021 Doc No 9942681001 9 18 9 Mounting Principle Do not use within the rst 15 minutes after installation 1 Mounting gasket 2 Mounting clip 3 M6 slotted set screw 4 Washer 5 Lock nut Fig 1 Recesse...

Страница 10: ...s it must be ensured that the wiring and connections are double insulated and safe against touch and protected from unauthorized and or accidental external contact Ensure that the correct polarity is...

Страница 11: ...ct the door contact switch to terminals T1 T2 The contact must be closed when the cabinet door is closed SCCR Refer to UL508A Supplement SB and Seifert Systems document Short Circuit Current Rating SC...

Страница 12: ...Doc No 9942681001 12 18 11 Controller Layout Description C1 2 3 Fan capacitors C Connection terminals M Microcontroller Alarm Potentiometer alarm temperature Temp Potentiometer cabinet temperature T T...

Страница 13: ...re potentiometer 1 L1 Live 120 V 2 N Neutral PE Earth 4 T1 Door contact bridged with T2 5 T2 Door contact bridged with T1 Normal with power ON Alarm with power ON 6 P1 Alarm contact 7 P2 Alarm contact...

Страница 14: ...on the PC board slightly to the right higher or to the left lower Close the unit in the prescribed manner Check that the new adjusted values meet the necessary requirements If necessary repeat the pr...

Страница 15: ...Install the unit at a di erent place The ambient temperature must be within the stated operating temperature range The control cabinet is not sealed properly The control cabinet needs re sealing Fan o...

Страница 16: ...ction The connections 1 2 and 3 4 are not low voltage 50V Regularly check the condenser pro le for dirt tests approx every 2 000 hours depending on the grade of ambient pollution Should the condenser...

Страница 17: ...fan xing screws Connect the fan cable to the PC board and replace the board if necessary Dispose the old fan according to the environmental laws and regulations 17 Transport Storage Malfunction due t...

Страница 18: ...ystems Ltd Seifert Systems Inc Seifert Systems Pty Ltd Albert Einstein Str 3 HF09 10 Wilerstrasse 16 B rnthal 1 Rep O ce 75 Circuit Drive 105 Lewis Road Hal Far Industrial Estate North Kingstown Wanti...

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