EDM SYSCROLL 400 900 AIR EVO

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SYSCROLL 400-900 AIR EVO
6
Heat recovery temperature
Unit controller can display various alarms and operation
status:
Low / High pressure
Evaporator antifreeze
Lack of water ow
Compressor operation / operating hours and start-up
numbers
Pump operation / operating hours
Compressor thermal protection
Fan thermal protection
Faulty sensors
Safety and control devices
Each unit is complete with the following safety and con-
trol devices
Safety:
Power disconnect switch with an emergency
stop function
Phase sequence control
High pressure switches
Low pressure switches
Evaporator antifreeze electric heater
Crankcase oil electric heater
Water differential pressure switch
Safety valve on discharge lines
Control:
High pressure transducers
Low pressure transducers
Discharge gas temperature probes
Return water temperature sensor
Leaving water temperature sensor (with an
antifreeze function)
Suction temperature sensor (for EEV control)
Outdoor ambient temperature sensor
Coil temperature sensors (HP only)
Heat recovery temperature sensor (TR only)
Optional hydro kits
On board mounted and remote hydro-kits are available
as option.
On board hydro kits can be supplied with or without buffer
tank while remote hydro kits (supplied loose for eld in-
stallation) are always provided with internal tank.
On board hydro kit without buffer tank are provided with
following components:
One or two pumps (one operating / one in standby)
with standard available static pressure (100 kPa) or high
available static pressure (200 kPa) → sizes 400 to 670
Two or three pumps (two operating / one in standby)
with standard available static pressure (100 kPa) or high
available static pressure (200 kPa) → sizes 750 to 900
Expansion tank (1 x 25 l for sizes 400 to 670, 2 x 25 l for
sizes 750 to 900)
Check valves (in case of 2 / 3 pumps)
Safety valve (6 bar)
Automatic air vent valve
Thermal insulation for pipes and water pump(s)
On board hydro kit with buffer tank are provided with fol-
lowing components:
One or two pumps (one operating / one in standby)
with standard available static pressure (100 kPa) or high
available static pressure (200 kPa) → sizes 400 to 670
Two or three pumps (two operating / one in standby)
with standard available static pressure (100 kPa) or high
available static pressure (200 kPa) → sizes 750 to 900
Buffer tank (500 l for sizes 400 to 450, 1.000 l for sizes
490 to 670)
Expansion tank (1 x 25 l for sizes 400 to 670, 2 x 25 l for
sizes 750 to 900)
Check valves (in case of 2 / 3 pumps)
Safety valve (6 bar)
Automatic air vent valve
Thermal insulation for pipes and water pump(s)
Antifreeze electric heater inside buffer tank
The variable ow systems is now available for all the list-
ed hydronic congurations with the following possibilities:
Manual ow adjustment
Constant delta P
Constant delta T
Factory installed options
Lonworks (RS485) interface
Bacnet (RS485) interface
ModBus (Ethernet) interface
Bacnet (Ethernet) interface
Compressors soft-starter
Fan speed control for low ambient operation in cooling
mode
Double set point
Load shedding
Remote dynamic set-point
Power factor correction capacitors
Compressor overload protection
Automatic circuit breaker
HP & LP gauges
E-coating for Al/Cu coils
Blue ns treatment for Al/Cu coils
Condenser coils with copper ns
Chiller grilles
Compressor jackets
Desuperheater
Total heat recovery (TR)
On board hydro kits 1P/2P with/without tank
Field installed accessories
Remote ON/OFF control
Remote keyboard panel