Daikin EWAT290B-SRB1 [10/62] Options

10/62

OPTIONS

Standard Options (supplied on basic units)

Double set point (opt. code 10 – provided as standard)

Possibility to pre-set two different chilled water temperature set points (cooling mode).

Evaporator Victaulic KIT (opt. code 20 – provided as standard)

It includes the victaulic joint and the counter pipe fitted with victaulic groove to be welded with the plant pipes -

Opt. incompatibility 21.

Evaporator electric heater (opt. code 57 – provided as standard)

Electronic expansion valve (opt. code 60 – provided as standard)

Ambient outside temperarue sensonr and set-point reset (opt. code 67 – provided as standard)

Setpoint Reset: The leaving water temperature set-point can be overwritten through an external 4- 20mA signal,

through the ambient temperature, or through the evaporator water temperature ΔT.

Hour run meter (opt. code 68 – provided as standard)

General fault contactor (opt. code 69 – provided as standard)

Main switch interlock door (opt. code 97 – provided as standard)

Master / Slave (opt. code 128 – provided as standard)

The EWAT~B features the new DAIKIN Master/ Slave (M/S) control. Once set which unit has the role of master,

the other(s) will operate as slave(s) based on the inputs provided by the master.

The chillers must be installed in parallel in the hydronic plant.

With Master/Slave control is possible to balance the working hours of the compressors enhancing reliability and

extending the life of the system

In order to operate in Master/Slave mode an additional probe (PT1000 or NTC10K) must be installed on the

common line of the plant and connected to the master unit. The additional probe is not provided by the factory.

Master/Slave can manage units selected with pump on board (fix speed pumps). Note: check valves must be

installed at the outlet of each chiller.

Master/Slave can also manage the start and stop of external pumps (not provided by factory). In this case, the

power supply of external pumps is not provided by the unit.