Xylem Bell & Gossett Ecocirc+ 20-18, Installation, Operation And Maintenance Manual

Page: 17 / 40

• Only use the pump thermal shells that are included in the delivery. Do not
insulate the motor housing, the electronics can overheat and cause the
pump to thermally overload.
• The thermal shells that are included with the pump must only be used in hot
water circulation applications with fluid temperature above 68°F (20°C). The
thermal shells are permeable to water vapor.
• The pump housing must not be insulated past the motor flange. If the vapor
barrier insulation is used for cold water applications, the flange drain path
must remain open to allow for condensation to drain out of the motor
housing.
4.1.5.2 Install the insulation housing
Install the insulation housing on the pump.
WS012682A
4.2 Electrical installation
4.2.1 Precautions
Before starting work, make sure that the safety instructions have been read and
understood.
DANGER: Electrical Hazard
Before starting work on the unit, make sure that the unit and the
control panel are isolated from the power supply and cannot be
energized. This applies to the control circuit as well.
DANGER: Crush Hazard
Moving parts can entangle or crush. Always disconnect and lock
out power before servicing to prevent unexpected startup.
Failure to do so could result in death or serious injury.
4 Installation
20-18 Installation, Operation, and Maintenance Manual 15