OJ Electronics WLM3, Руководство по установке

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© 2015 OJ Electronics A/S
10
C) To control a motorised valve
Many motorised 2-port spring return valves have wires coloured BROWN and BLUE for power
connections. In this case, BROWN must be connected to terminal B2 under the heading
BOILER and BLUE must be connected to terminal N on the master. Then link the L (230V)
terminal to the terminal marked BOILER - B1. The boiler relay will be energised after a delay of
10 seconds after the start of the main pump.
Basic versions without display. Type WLM3-xBA.
The boiler relay will stop if no heat is demanded by the room sensors.
Versions with display. Type WLM3-xFS.
These units have supply water temperature control. The boiler relay will switch ON once the
control valve has opened 20% and will remain ON for as long as a heat demand exists.
The master has an output for the underfloor circulating pump (secondary pump). The output will be
energised after a 180-second delay whenever any room sensor connected to the system calls for
heat. The delay allows time for the thermal actuator to start opening.
The 230V AC pump can be connected directly to terminals L and N under the heading SEC. UHF
PUMP . Connect the pump PE (earth) terminal to the PE (earth) terminal on the master. Maximum
pump load must not exceed 4 amps, 230V at start up. There is an overrun period of 1 minute after
heat is no longer demanded by the room sensor.
Delay times: Secondary UHF pump 180 sec.
X-OUTPUT (configured as main pump) 190 sec.
Pump output
Free relay function (X-outPut)
All WLM3 masters have a relay which can be
utilized for a number of different purposes.
The relay is a volt-free output and is positioned
on the PCB as shown in the drawing.
The function of the relay is determined by the
DIP-switch settings.
The functions that the relay can control, and
the corresponding DIP-switch settings, are as
follows:
installation
Fig. 4b
BR965A33a
Fig. 5
BR965A15b
Fig. 6a
BR965A15b
to control X-outPut for: DiP-5 DiP-6 DiP-7
Boiler pump OFF OFF OFF
High-limit zone valve ON OFF OFF
Cooling device/module OFF ON *
Cooling device/module,
alternative
ON ON *
Differential thermostat OFF OFF ON
* ON = Actuator output no. 1 is used as an ON/OFF signal
for a dehumidifier