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Monobloc Outdoor Unit
6.3.5. NHC (new hydronic PCB)
Terminal
J1
J2
J3
J4
J5
J6
J7
J8
J9
6.3.6.
Standard acronyms
Acronym
IAT
BPHE
CHWS
DHW
EHS
EWT
FCU
LWT
Connection
Live
Neutral
Earth
Primary transformer
Secondary transformer
BUS CCN
Inputs
Input water sensor
Input water sensor
Meaning
Indoor air temperature
Brazed plate heat exchanger
Chiller water system
Domestic hot water
Electrical heater stage
Entering water temperature
Fan coil unit
Leaving water temperature
Terminal
J10
J11
J13
J15
J21
J22
J26
J27
Acronym
NHC
OAT
PMV
SHC
TR
UFC
UFH
WUI
24
Service Manual
Connection
BUS JBUS
Input refrigerant sensor
Supply Remote Controller (WUI)
PWM circulator
Inputs
Inputs
Inputs / Outputs
Outputs
Meaning
New hydronic control
Outside air temperature
Pulse modulating valve
Space heating / cooling control
Refrigerant temperature
Underfloor cooling
Underfloor heating
Remote controller (user interface)
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