Samsung VRF DVM S Water Technical Data Book page 57

10. Installation
Water pipe installation
It is recommended to use closed circuit cooling tower. If open cooling tower is applied, use intermediate heat exchanger and
make sure that supplied heat source water system is closed circuit.
Water pipe installation
2Way solenoid valve
Ball valve
<Connecting pipe before test operation>
Flexible
Water pipe
joint (absorb
connection
vibration)
hose
Pipe for cleaning
<Pipe connection part>
Finishing tape
Insulator
Water pipe
50 or more
※ From above illustration, flow switch (mandatory) and 2way solenoid valve (optional) must be at least equivalent
to the specification recommended by our company and they should be installed horizontally.
When water pipe circuit freezes, it will cause damage to the plate type heat exchanger and therefore
preventive measure must be taken according to the situation.
CAUTION
• Drain remaining water in the water pipe when it will not be used for long period of time
• Constantly operate the water pump to circulate the water within the water pipe
• Install self-regulating heat cable on the water pipes
※ Design condition
Circulating
Type
water
Heat source
Water loop
water
Ground heat
Ground loop
Note1)
source
Note 1): Anti-freeze must be used when temperature of water inlet for heating is below 10°C or ground heat source is used. Maintain
appropriate concentration level of anti-freeze according to temperature of water inlet.
Note 2): Strict management of anti-freeze concentration level is required. Consult Samsung before application.
Note 3): When inlet water temperature is outside of limit, consult Samsung before application.
<Water pipe diagram>
Flange
T
Flow switch
(Mandatory
connection)
Strainer (must
Water pipe IN
be purchased
separately)
Operation
Main usage range
Cooling
Heating
Cooling
Heating
Water pipe
Protection tube
Anti-vibration pad
Support to prevent
loading on the pipe
Inlet water temperature
Usage range limit
20 ~ 35 °C
15 ~ 35 °C
5 ~ 25 °C -5 ~ 45 °C (-10 ~ 45 °C)
Note 3)
10 ~ 45 °C
'Cooling water
management'
10 ~ 45 °C
on page 96
Note 2)
Remarks
Refer to
57