Mark Klimat 15-15, Technical Manual

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3.8 Warm water, steam, cooler battery [9]
The batteries installed in the air handling unit are easy to dismantle. Connections and/or flanges
should be used. Make sure that the connection pipes do not restrict any other parts of the air
treatment unit. When tightening the connections or flanges, the battery pipe must be held back
with suitable equipment. No mechanical load may be placed on the connecting pipes. The battery
must be able to expand freely. Connect the battery in accordance with the flow direction indi-
cated. The fitter is responsible for bleeding and drawing off the pipes. The battery must be pro-
tected against the risk of freezing. Check this protection during the winter period.
3.9 Gas and oil-fired heat source: Föhn module [10]
The Föhn module is a gas or oil-fired air heater. The air heater is available from a capacity of
115kW to 415kW and in 5 sizes. The Föhn module can be used as a condensing or non-condens-
ing air heater as required. Check the Föhn’s maximum heating does not exceed 50K. See the type
plate on the heating element for details. Condensing air heaters must be connected by a siphon to
a sewage pipe. Make sure that there is an open connection between the siphon outlet and the
sewage pipe. Make sure the siphon is not in danger of freezing. Fill the siphon with water
before
starting up the appliance.
3.10 Gas-fired heat source: G+ module [11]
The G+ module is a gas-fired high-performance air heater. The air heater is available from a capac-
ity of 40kW to 150kW and in 5 sizes. The G+ module is a modulating, condensing air heater. The
integrated premix burner is able to modulate from 100% to 20%. To guarantee cooling of the
combustion boiler and the heat exchanger, the system fan is compressed. Check that the G+’s
maximum heating does not exceed 30K. See the type plate on the heating element for details.
Condensing air heaters must be connected by a siphon to a sewage pipe. Make sure that there is
an open connection between the siphon outlet and the sewage pipe. Make sure that the siphon is
not in danger of freezing. Fill the siphon with water
before starting up the appliance.
3.11 Gas-fired heat source: GRE module [12]
The GRE module is a gas-fired air heater. The air heater is available from a capacity of 20kW to
95kW and in 7 sizes. The GRE module can be fitted with an on/off, high/low burner or a modulat-
ing/pulsating control. The GRE module is suitable where appliances of the same size are installed
in a series. This allows the maximum heating capacity to be increased to 2 x 95kW. Check that
the GRE’s maximum heating does not exceed 40K for a single appliance, and 60K maximum for
several appliances. See the type plate on the heating element for details.
3.12 Air bypass duct
The air bypass duct is used on gas-fired units such as the G+, GRE and the Föhn module with
greater air quantities. This keeps the air resistance across the units low, and restricts the motor
power required. If necessary, the air bypass duct can be fitted with a servo motor-controlled
valve.
3.13 Gas-fired heat source: Calflo make-up air system
The Calflo make-up air system is a heating system in which the combustion gases are fully mixed
with the air to be heated. CO
2
produced from the combustion of (natural) gas is diluted by adding
a large quantity of heating air. A maximum delta T of 55K is permitted for heating rooms. The
permitted concentration of CO
2
in the heated air blown out is maximum 2000 PPM. The Calflo
make-up air heater is suitable only for heating outdoor air. Air from the heated area must not be
recirculated under any circumstances.
06_61_000 Klimat:Opmaak 1 21-07-2009 16:12 Pagina 8