It Is Recommended That The Water Flow Is Shut Off When The Fan Is Switched Off. To Avoid The
Overheating Of The Heating Coil, The Hot Water Pump And Water / Steam Valves Should Only Be Opened
During The Operation Of Fan.
Supply Air Control: The Supply Air Temperature Of The Coil At The Suction Side Should Be Max. 40˚c,
Otherwise The Overheating Danger Will Occur.
check The Concentration Ratio Of The Antifreeze Before The Start-up Of The Cooling Coil. It Should Be
Enough For The Claimed Operating Temperature Range. It Should Be Taken In To Account That The
Increasing Concentration Ratio Of The Antifreeze Decreases The Performance Of The Coil.
The Minimum Temperature Of The Chilled Water Should Be +20c, At Lower Temperatures Freezing Danger
Will Occur.
Antifreeze Is A Dangerous Chemical. The Safety Instructions Of The Antifreeze Manufacturer Should Be
Taken In To Account.
Direct Expansion Coils Will Be Supplied With A Refrigerant Distributor Suitable For Brazed Connections.
Refrigerant Pipe Work Must Include Necessary Shut Off Devices, Dehydrators, Solenoid Valves, Oil Traps Etc.
Selection, Sizing, Installation And Setting Of Thermostatic Expansion Valve Should Be In Accordance With
The Recommendation Of Condensing Unit Manufacturer.
Steam Coils: Special Care Should Be Taken For Collection And Disposal Of Condensate Within The Coils And
To Prevent Entry Of The Condensate In The Main Into The Coil By Trapping It Independently On A Coil Bypass.
Condensate Connections To The Steam Trap Must Be Of The Same Size As The Coil Outlet.
6.4- Humidifiers
Mat Type Or Steam Type Humidifiers May Be Assembled In The Unit. For The Piping And Wiring Instructions
Please Refer To Humidifier Manufacturer’s Manual.
The supply water, overflow / drain piping should be done before the start-up of mat type humidifiers. The
supply piping should have a valve for cutting off during the maintenance. Before start-up clean the water
sump, close the drain valve and fill the sump with water. The float adjusts the water level. The distance
between the water level and overflow pipe should be 5cm. The water level in the sump is very important so
that if the water height is usually at low level the humidification performance will decrease. Check the
rotation of the pump, the direction should be at clockwise. Change the connection of the 2 phases if the
direction is opposite. Not to damage the pump do not operate dry.
Before the start-up of the steam humidifier, wiring and piping should be done, steam supply and drain hose
should be connected to the steam distribution pipe.
Before start-up, piping system and hoses should be checked for any damage and leakage.
For further information about the humidifiers please refer to the humidifier manufacturer’s manual.
Air Handling Unit Installation, Operation And Maintenance Instructions
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Содержание FourSeason KKS 062 - 046
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