Lauda Proline RP 1290 C, Operating Instructions Manual

Page: 25 / 120

Proline Edition X cooling thermostats
YACE0100 / October 4, 2018
Preparation
25
6.4 Connecting external loads
Operation as circulating thermostat

When used as circulation thermostat, care for
shortest hose connections with largest inner
diameter as possible. This gives the best flow.

Push hose with 11
–
12 mm internal width onto
hose olive or connect metal hoses (

6.3) to
pump connectors.

Pump connectors at side:
Inlet and outflow

see labeling housing.

Pump connectors at back:
Inlet and outflow

see labeling housing.

Set bypass valve to "external".
 
If cross-sectional area of tube is too low

temperature gradient between bath
and external load due to low flow rate.

Always ensure the largest possible passages in the external circuit.

If external control is to be used, provide a Pt100 probe in the external load (

Section 7.7.2 and 7.7.4).

When tightening the union nuts on the pump nipple AF 19, use a wrench AF 14
to counter the tightening torque (see figure).

With loads at a higher position and with stationary pump and ingress of air into
the thermostatic circuit, the external volume can drain away, even with closed
circuits

Risk of thermostat overflowing!

Secure hoses against slippage with hose clips.

Unused pump connectors must be closed off.
Bursting of the external consumer due to overpressure
Scalding, frostbite, cutting

Use a pressure relief device on pressure-sensitive
consumers (e.g. glass reactors).