GB.TBLZ66.110620
Swegon reserves the right to alter specifications.
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1. General
The TBLZ-1-66 accessory is a control system incorporated
into a control box. The control box is designed for installa-
tion in connection with the GOLD air handling units.
Communication cables for Modbus communication
should be connected between the control box and the
GOLD air handling units.
The control box contains a Programmable Logic Control-
ler system and its front panel has a control terminal with a
display screen.
The buttons and display screen are used for entering set-
tings and viewing readings for common functions.
2. Range of application
The TBLZ-1-66 control box is a control system for control-
ling two parallel GOLD air handling units.
One GOLD air handling unit is selected as the Master, and
the other unit is selected as the Slave.
The control box transmits set points to both air handling
units. These set points then control each unit separately.
If the air handling units are to be regulated on a VAV basis
and the duct pressure is to be kept constant, connect a
standard pressure sensor to the GOLD unit that operates
as the Master. The pressure readings are transmitted via
the communication system to the control box and are
processed there. This also applies to the external room
temperature sensor and the CO
2
sensor, if one is used in
the system.
Conditions
Parallel control is possible for the size 04–80 GOLD air
handling units.
The GOLD air handling units involved must be of the same
size.
The air handling units are considered parallel if they are
connected to a common duct system.
Both air handling units must be equipped with the same
accessories, such as an air heater, air cooler, dampers, etc.
Installation instructions for the TBLZ-1-66 control box for
controlling two air handling units (Twin Function)
GOLD 04-80
3. Installation
The control box should be installed in connection with the
GOLD unit selected as the Master.
It is advantageous if the control box panel and the hand-
held micro terminal of the Master air handling unit are
located in such a way that they can be operated and
supervised from the same place.
4. Technical data
Enclosure class
IP 66
Ambient temp.
0 - +50°C
for a rel. hum. of
5 - 85% (non-condensing)
Weight
7 kg
Dimensions
380x300x220
(WidthxHeightxDepth)
