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EN

HEWALEX Sp. z o.o. Sp. k.

+48 32 214 17 10

www.hewalex.pl

OPTI-TEMP

Installation and maintenance guide

DEVICE DESCRIPTION

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1

OPTI-TEMP (G433) is a

n

 optional device of OPTI-ENER system that enables to manage energy surpluses for heating purpose. In most  cases the controller is 

used to heat-up a domestic and heating water or air – by any resistance heating elements.

a

Controller has been equipped with 

variable voltage regulator

 to supply resistance heating element e.g. electric heater. Power of electric heater will be 

adjusted to actual energy surpluses measured constantly. To provide proper work of the device it is required to set up a ,,Supply power” correctly at 
electric heater regulation at opti-ener.com. OPTI-TEMP is able to control electric heater up to 2000 W. OPTI-TEMP has two addition potential free 
contacts with following parameters – 230V AC and maxiumum load 16 A

.

Temperature measure

 allows to turn on/off heating element after exceeding desired values. NTC temperature sensor (10 kOhm) is a part of OPTI-TEMP set. In 

case  of  extraordinary  measure  conditions  to  unblock  setting  range  please  put  20-30  kOhm  resistor  to  temperature  sensor  input.

It is possible to install 3 addition temperature sensor although they do not take a part in control. 

Potential free contacts can be turned on manually for 60 seconds by pushing manual switch on the cover of OPTI-TEMP. Thanks to OPTI-ENER user is also able to 
control supply power automatically according to energy surpluses or time schedule. Settings are available at website opti-ener.com

CAUTION:

 If your OPTI-ENER system contains two optional modules Converter PV and OPTI-TEMP than please make sure to connect the OPTI-TEMP 

module first. 

Connection steps

:

Connect the power cable to OPTI-TEMP.

Connect communication wires to port RS485 in OPTI-TEMP module and port RS485-2 in OPTI-ENER module or Radio G931.

Push the B2 button at the top of the OPTI-ENER cover (diode LED2 should blink).

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CONNECTION TO SUBNETWORK

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I

II

III

07.11.2017

If the connection will be successful than signal diodes at OPTI-TEMP will start pulsing. In addition at opti-ener.com at Scheme and also at Settings menu in 
Parameter Settings card new control settings should appear. In case of connection failure please reset the OPTI-ENER module by pushing and hold B2 button 
until LED1; LED2 diodes will turn on and repeat steps I-III.

CAUTION: In order to restore fabric settings please make a short-circuit of 3-rd and 4-th (up) pins mounted at OPTI-TEMP printed circuit board. Pins are located 
in distance of 1,5 cm (0,6 inch) on the right side of manual switch 2.

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