Lauda E 4 G Operating Instructions Manual page 28

Operation as circulation thermostat
Note:
−
Always use the largest possible cross-section and the shortest possible hose lengths in the external
circuit.
−
For a hose cross-section that is too small a temperature gradient occurs between the bath and exter-
nal consumer due to a volume flow that is too low. In this case increase the bath temperature or the
pump level appropriately.
−
Secure the hoses with the aid of hose clips.
−
If the thermostat is to be externally controlled, a temperature sensor must be fitted in the external
consumer.
−
If the consumers are situated at a higher level and with the pump stopped and air seeping into the
external fluid circuit, then even with enclosed circuits the external volume may run empty. There is
danger of the thermostat overflowing.
−
If no external consumer is connected, the outflow nozzle must be sealed off or connected to the re-
turn nozzle by a hose.
Notice
Notice
28
To ensure the greatest volume flow, with operation as a circula-
tion thermostat ensure the shortest possible hose connections
with the largest possible hose internal diameter.
−
Connect a hose with 11-12 mm inside diameter (
the pump connections.
Pump connection (
head):
•
Outflow OUT(front)
•
Return to the bath IN (rear)
Pump connections not closed off
Environmental hazard from leaking heat transfer liquid
•
Fit sealing plugs to the pump connections when no
external consumers are connected.
Thermostat overflow
Environmental hazard from leaking heat transfer liquid
•
Do not position the thermostat above the consumer.
Before putting the device into operation
labeling on the housing of the control
ECO GOLD
6.4) to
25/08/2011/ YACE0088