Table of Contents
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1. List of Function
Basic functions of Unit
Water Side
Category
Drain pump
E.S.P control
Installation
Electric heater (Install kit)
High ceilling opertion
Auto Elevation Grille
Hot start
Reliability
Self diagnosis
Soft dry opertion
Auto Restart
Child lock*
Sleep mode
Convenience
Timer (on/off)
Timer (weekly)*
Two thermistor control
Anti-condensation on floor (cooling)
Water pump on / off Control
Flow switch control
Thermostat interface (230V AC)
Thermostat interface (24V AC)
DHW(Domestic Hot Water) Tank heater (Install kit)
Solar thermal kit interface with DHW Tank
PHEX anti-freezing control
Water pump forced operation
Autosetting according to ambient temperature
Slient operation
Air to Water
Anti-overheating of water pipe
Heat Pump
Emergency operation
Functions
Weather Dependent Operation with Thermostat
Scheduler (DHW Tank Heater)
Timer (Domestic Hot Water Tank Heater)
Quick Domestic Hot Water Tank Heating
Electric Heater Capacity Control
Screed Drying Mode
Sump Heater
Base Pan Heater
Dry Contact (Main PCB)
2
nd
Circuit
3
rd
Party Boiler
Note
1. O : Applied, X : Not applied
Accessory model name : Installed at field, ordered and purchased separately by the corresponding model name, supplied
with separate package.
Functions
ZHBW056A0[HM051M U43]
ZHBW126A0 [HM121M U33]
ZHBW076A0[HM071M U43]
ZHBW146A0 [HM141M U33]
ZHBW096A0[HM091M U43]
ZHBW166A0 [HM161M U33]
X
X
O (Accessory)
O (Accessory)
X
X
X
O
X
O
O
O
O
O
X
O
O
O
O
X
O (Accessory)
O (Accessory)
O (Accessory)
O (Accessory)
O
O
O
O
O
O
O
O
O
O
O
O
X
O
O
O
O
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Copyright © 2018 LG Electronics Inc. All rights reserved.
Only training and service purposes.
ZHBW128A0 [HM123M U33]
ZHBW148A0 [HM143M U33]
ZHBW168A0 [HM163M U33]
X
X
X
X
O (Accessory)
X
X
X
X
X
X
O
O
X
X
O
O
O
O
O
O
O
O
O
O
X
X
O
O
O
O
O
O
O
O
X
X
O (Accessory)
O (Accessory)
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
X
X
O
O
O
O
O
O
O
O
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Troubleshooting
