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6.5
Connecting external loads
Operation as circulating thermostat
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Bursting of the external consumer due to overpressure
Use a pressure relief device on pressure-sensitive consumers (e.g. glass reactors).
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 thermo-
static circuit, the external volume can drain away, even with closed circuits Risk of ther-
mostat overflowing!
Secure hoses against slippage with hose clips!
Unused pump connectors must be closed off.
Proline heating thermostat
Scalding, frostbite, cutting
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
olive or connect metal hoses
( 6.4) 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".
12 mm internal width onto hose
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02/2022
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