Daikin EHVH04S18CB3VF [3/4] Allows isolation of the indoor unit water circuit side from the residential water circuit side

Daikin EHVH04S18CB3VF [3/4] Allows isolation of the indoor unit water circuit side from the residential water circuit side

4P412945-1 – 2015.06 Addendum to the documentation set

3

Components: Indoor unit

c d e f

x

n

v

u

n

o

s

z

i

y

x

aa

t

y

a

b

g

h

cc

j

k

l

m

n

r

o

p

bb

cc

w

q

b

a Space heating cooling out

b Shut-off valves (accessory)

Allows isolation of the indoor unit water circuit side from the

residential water circuit side.

c Domestic hot water out

d Refrigerant liquid connection R410A

e Refrigerant gas connection R410A

f Domestic hot water in

g Fill valve (accessory)

h Space heating cooling in

i Expansion vessel (10 l)

j Pressure relief valve

Prevents excessive water pressure in the water circuit by

opening at 3 bar.

k Water filter

Removes dirt from the water to prevent damage to the pump

or blockage of the heat exchanger.

l Heat exchanger

m Water pump

Circulates the water in the water circuit.

n Thermistors

Determines the water and refrigerant temperature at various

points in the circuit.

o Drain caps

p Tank thermistors

q Domestic hot water tank drain valve

Empties the full tank.

r Switch box

Contains the main electronic and electrical parts of the

indoor unit.

s Backup heater thermal protector

The protector activates when the temperature of the backup

heater becomes too high.

u Backup heater

Provides additional heating in case of cold outdoor

temperatures. Also serves as backup in case of

malfunctioning of the outdoor unit.

v Manometer

Allows readout of the water pressure in the water circuit.

w Flow sensor

Gives feedback to the interface about the actual flow. Based

on this information (and other), the interface adjusts the

pump speed.

x Air purge valve

Remaining air in the water circuit will be automatically

removed via the air purge valve.

y 3-way valve

Controls whether the water is used for space heating, or the

domestic hot water tank.

z User interface (accessory)

aa Flow-through vessel

bb Drain flexible pressure relief valve

cc Air valve

Содержание

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