8
Hardness of the water being used exceeds the value of 30ºfH; water should be subjected to hardness reduction
procedure.
PH level of the water being used is between 6 and 8, or at the level of 7.5 if possible.
In drainage piping, drainage pipe diameter should be considered not to be lower than condensation pan outlet
pipe diameter.
Pay attention to necessary conditions for pipe connections of hot water coil.
In winter conditions under 0 ºC, the device should be isolated on return line.
The directions on the gas firing unit are only valid in the countries which are shown in the symbols on the
units. If symbol of the country not shown, please contact us for to make arrangements on the unit for proper
conditions to be used.
For gas firing units, operating gas pressures should be at 20mbar for natural gas. In case the maximum
compressive strength of gas pass is 60mbar and over this value, gas pass equipments of the device will break
down and the device will be out-of-order.
Electrical connections to be provided to the device panel from outer surface should be in compliance with the
rules.
The device cannot be used at environments with explosion hazard.
Never perform any repair or maintenance work on the device when electricity plugged in.
By using a voltmeter, the tag value of voltage should be checked to stay within ±%5 tolerances.
Approximately four hours before the device is commissioned, switch on the electric supply line should be
changed into off (there is electric power) status.
While performing any maintenance on the device, the unit electricity should be unplugged and a warning sign
should be used to state that the device is under maintenance.
Let no unauthorized people to intervene with the parts of the device with electric power.
Don’t touch electrical equipments of the device with bare hands without any protection.
Don’t run the device while electrical and electronic equipments of the device are subjected to the
environmental conditions by opening protective doors and panels.
Never use gas pipes in grounding the device.
Don’t touch hot surfaces and flue pipe of the device while operating.
Gas firing unit and control unit shouldn’t be made wet with water or any other liquids.
Don’t put anything inside or on the gas firing unit to prevent it from operating.
Don’t touch moving parts of the gas firing when operating.
Any maintenance and control procedure on the gas firing unit should be performed according to the rules
defined in the manual.
