1. General
The TBLZ-2-66 accessory is a control system incorporated
into a control box. The control box is designed for installation
in connection with GOLD RX air handling units (Version
E).
Communication cables for Modbus communication
should be connected between the control box and the
GOLD air handling units.
The control box can be wired to a BMS via the Ethernet.
The control box contains a PLC system and the front panel
of the box has a control terminal with touch screen.
The touch screen is used for entering settings and viewing
readings for common functions.
2. Application area
The TBLZ-2-66 control box is a control system for controlling
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 CO2
sensor, if one is used in
the system.
Conditions
Parallel control is possible for the size 04–120 GOLD RX 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.