Daikin EWYT175B-SSA1 [73/75] Specifications

Daikin EWYT105B-SSA1 [73/75] Specifications
INSTALLATIONS NOTES
73 | 75
SPECIFICATIONS
Hydronic kit options (on request) The hydronic module shall be integrated in the unit chassis without
increasing its dimensions and includes the following elements: centrifugal pump with motor protected by a
circuit breaker installed in control panel, water filling system with pressure gauge, safety valve, drain valve,
The hydronic module shall be assembled and wired to the control panel
The water piping shall be protected against corrosion and freezing and insulated to prevent condensation
A choice of two pump types shall be available:
-
in-line single pump
-
in-line twin pumps
The unit should be able to operate in Primary only system with two-ways valve on terminals with
Variable Primary Flow control strategy (available as option on request).
Master/Slave
The unit shell be able to operate in Master / Slave mode in order to be connected with another similar unit (up
to 4), The master unit shall manage the slave units connected in series on the hydraulic plant with the aim of
optimize the running hours of each compressor and to balance running hours and the load
between the units.
Electrical control panel
Power and control shall be located in the main panel that will be manufactured to ensure protection against
all weather conditions.
The electrical panel shall be IP54 and (when opening the doors) internally protected against possible
accidental contact with live parts
The main panel shall be fitted with a main switch interlocked door that shuts off power supply when opening
The power section will include compressors and fans starter devices
Controller
The controller will be installed as standard and it will be used to modify unit set-points and check control
parameters.
A built-in display will shows unit operating status plus temperatures and pressures of water, refrigerant
and air, programmable values, set-points
A sophisticated software with predictive logic, will select the most energy efficient combination of
compressors, EEXV and Air Side Heat Exchanger fans to keep stable operating conditions to maximize
unit energy efficiency and reliability
The controller will be able to protect critical components based on external signals received from the unit
itself (such as motor temperatures, refrigerant gas and oil pressures, correct phase sequence, pressure
switches and Water Side Heat Exchanger flow switch). The input coming from the high pressure switch cuts
all digital output from the controller in less than 50ms, this will be an additional safety for the equipment.
Fast program cycle (200ms) for a precise monitoring of the system
Floating point calculations supported for increased accuracy in P/T conversions

Содержание

Скачать