INSTALLATION | Appliance installation
982001-TERRA-M2-M4-EN04.1 | www.ochsner.com 29
Material damage
An external source of voltage at the sensor termi-
nals can destroy the OTE controller.
»
Ensure that no 230 VAC or 400 VAC cables
are touching the sensor terminals on the OTE
controller.
»
Connect the power supply cable for the control circuit
(X3).
»
Connect the power supply for the main power circuit
(X1).
»
Connect the power supply for the electric booster
heater, if present (KM2, X8).
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KM2
Terminal
Description
X1
L1/L2/L3/N Connection from main power circuit (compres-
sor) to three-phase power supply
L/N/PE
Connection from main power circuit (compres-
sor) to single phase power supply
X3
L/N
Mains connection for the control circuit (OTE)
X3
LS/21
PSU signal contact
KM2 L1/L2/L3
Mains connection for the optional electric
booster heater (comprising 3 individual heating
elements)
X8
N/N/N
i
Information
Connect the PE conductor from the power cables
to the earth rail in the control box.
WARNING: Electrocution
When the appliance power supply is on, there will
always be 230 VAC at the PSU signal contact.
When using the PSU signal contact, please note the fol-
lowing: (see page 18, PSU signal contact)
»
Remove the factory-fitted clamp on X3 (LS/21).
»
Connect the cable for the PSU signal contact to X3
(LS/21).
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Summary of Contents for TERRA 11
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