Single Zone Fan Coil Units - Samsung EHS AE050RXYDEG/EU Manual

4. Typical applications

4.4 Single zone fan coil units

Outdoor
Flexible
pipe
Outdoor unit
• To enable the backup heater as an additional heat source, please set FSV (#4021, 4022). The backup heater must be
installed and operational by control logic. When ambient conditions can reach below 24°C.
• It is not possible to interconnect the FCU to the EHS they are working independently. Supply temperatures above 65°C
are not allowed when using Samsung FCUs.
NOTE
A buffer may be required in the secondary circuit, if the active volume is too small to operate a minimum of
600 seconds during part load operation.
Especially when the devices have individual (thermostatic) valves, to control the flow over the devices.
Installer reference guide / Mono tank integrated type
Indoor
a. b. c. d. e. f. g.
h. i.
k.
m.
j.
l.
n.
o.
ClimateHub Indoor unit
FSV to set:
ClimateHub
2091 or 2093 = 1,2,3 or 4
components:
3011 = 1 or 2
a. Return to ODU
b. Supply from ODU 4021 = 1
c. Fresh water in
4022 = 1
d. DHW return
4023 = 1
e. DHW supply
f. Supply to zone
g. Return from zone
h. Backup heater
i. Diverter valve
j. Primary pump
k. DHW Tank
Zone
l. Flow meter
m. Booster Heater
n. Expansion vessel
o. Y-Strainer
FSV to check:
4024
4025
p. spring loaded bypass
(in combination with a
fixed speed pump and
thermostatic valves)
p.
Fan Coil Unit zone
26