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GB.TBLF.170215
Use a pipe wrench to restrain the pipe connections of the
air heater when tightening the external pipe connections
to avoid damaging the tubes in the air heater.
Always fill the air heater with liquid from the lower con-
nection. Vent the system before you commission it.
The supply flow temperature should be between 80-85°C.
Continuous circulation through the air heater is required
whenever the outdoor temperature is low, to ensure
satisfactory anti-freeze monitor function in the air heater.
A secondary pump and non-return valve must therefore be
installed as illustrated in Fig. 2. A pump kit consisting of a
pump, non-return valve and commissioning valve is avail-
able as an accessory.
The temperature sensor can to advantage be mounted at
an appropriate place in the air handling unit between the
filter and the heat exchanger in order to avoid erroneous
measurements because of temperature stratifications.
The ventilation system should be supplemented with a
TBLZ-1-24-3 or TBLZ-1-30 sensor, installed upstream of the
preheat coil viewed in the direction of airflow, to furnish
the GOLD air handling unit with a correct outdoor tem-
perature reading.
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Swegon reserves the right to alter specifications.
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