Electrical Connection; Standard Controller (Sc) Electrical Circuit Diagram; Door Contact Switch - Pfannenberg DTS 3000 115V serie Technisches Handbuch

3.5 Electrical connection

3.5.1 Standard controller (SC) electrical circuit diagram

DANGER
Life-threatening hazard due to electric shock
Live units and exposed connection cables can generate an electric shock hazard and cause severe accidents.
• Work on electrical connections must be carried out exclusively by trained, qualified electricians.
• Ensure that the unit is voltage-free before routing all electrical connections.

3.5.2 Door contact switch

WARNING
Hazard due to connection of external voltage at the input of the door contact
External voltage can cause severe accidents.
• Connection of external voltage to the input for the door cabinet is prohibited.
Installation of a door contact switch increases safety and prevents increased accumulation of condensate.
• If a door contact switch has not been connected, the connection contact (S1) must be jumped.
Door contact switch installation
REQUIREMENTS:
• The cooling unit is de-energized.
PROCEDURE:
• The door contact switch is connected to the X54 connection at 3 & 4 or the electrical circuit diagram in the housing cover.
• The door contact is supplied with high voltage, from the cooling unit on the DTS 3021/31/31 SS and 30X1 series units.
• The door contact is supplied with low voltage from the control board on the DTS 31X1, 31X5, 32X1, 32X5, 34X1 and 36X1
series units.
• The door contact switch is connected. The motors switch off when the switch cabinet is opened.
Page 12
| OPERATING MANUAL DTS Return To Table Of Contents