AERMEC HMI120T Installation Manual
AERMEC HMI120T Installation Manual

AERMEC HMI120T Installation Manual

Reversible air/water heat pump
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EN
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T r a n s l a t i o n o f O r i g i n a l i n s t r u c t i o n s
HMI
040-160T
Installation Manual
REVERSIBLE AIR/WATER HEAT PUMP

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H e a t i n g c a p a c i t y 4 , 0 ÷ 1 5 , 5 k W
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Summarization of Contents

Safety Standards R32 Gas
Safety Standards R32 Gas
Details safety standards for R32 refrigerant gas, including warnings and precautions.
R32 Gas Warnings for Maintenance or Repair
Provides specific warnings for technicians performing maintenance or repairs on R32 units.
Filling R32 Refrigerant Gas
Outlines procedures for safely filling the R32 refrigerant gas.
General Warnings
Important General Instructions
General safety instructions and warnings for operating and maintaining the unit.
Precautions Against Residual Risks
Lists precautions to take against residual risks during installation and operation.
Safety Notices (Please Be Sure to Abide)
Information for Correct Disposal of the Product
Provides guidance on the proper disposal of the product according to EU regulations.
Receiving the Product
Product Identification
Explains how to identify Aermec products using packaging and rating labels.
Handling and Transport
Inspection Upon Receipt
Details checks to perform upon receiving the product to ensure it's undamaged.
Lifting
Provides instructions and safety precautions for lifting the unit.
Storage
Recommends procedures for storing units if they are not immediately installed.
Description
Unit Type
Describes the HMI as a reversible outdoor heat pump for air-conditioning and hot water.
Features
Lists the main hydraulic components and regulation features of the unit.
Operating Limits
Cooling Mode
Illustrates the operating limits for cooling mode based on air and water temperatures.
Heating Mode Range
Illustrates the operating limits for heating mode based on air and water temperatures.
Removing the Compressor Restraints
Procedure for Removing the Foot Brackets
Step-by-step guide for safely removing compressor foot brackets before unit startup.
Hydraulic Connections
Discharging System
Explains how to discharge the heat exchanger fluid to prevent freezing.
Anti-Freeze Protection
Details methods to protect the unit from freezing, including using glycol solutions.
Water Volume and Pressure in the Expansion Tank
Note
Provides examples and clarifications for adjusting expansion tank pressure based on system volume.
Expansion Tank Load Pressure Calculating Method
Selecting the Expansion Tank
Provides a formula and factors for selecting the appropriate expansion tank size.
Example of Installation
Example 1 - Configuration Floor System / Fancoil + DHW
Illustrates a typical installation configuration for floor systems, fancoils, and domestic hot water.
Charging and Discharging of Refrigerant
Drainage
Instructions for draining refrigerant from the unit.
Charging Valve 1
Details the use of charging valve 1 for vacuuming operations.
Charging Valve 2
Details the use of charging valve 2 for vacuuming operations.
Electrical Wiring
The Following is Mandatory
Lists mandatory requirements for electrical connections and safety measures.
Control Panel Connection (Supplied as Standard)
Control Panel Kit
Lists the components included in the control panel kit.
Control Panel Dimensions
Provides the physical dimensions of the control panel.
Connecting the Room Air Temperature Probe (Supplied as Standard)
Note
Provides notes on positioning and activating the remote room air temperature probe.
Connecting the Thermostat (Not Supplied)
Thermostat Power Supply
Details the power supply connections for the thermostat.
Heating Mode Range
Specifies the thermostat settings for heating mode.
2-Way Valve (Not Supplied)
General Information
Describes the 2-way valve function and types (NO/NC).
How to Wire 2-Way Valve
Provides step-by-step instructions for wiring a 2-way valve.
3-Way Valve (Not Supplied)
General Information
Describes the 3-way valve's purpose and wiring.
Wiring Diagrams
HM1040-060-080
Wiring diagram for HM1040-060-080 models.
HMI100-120-140-160
Wiring diagram for HMI100-120-140-160 models.
HMI100T-120T-140T-160T
Wiring diagram for HMI100T-120T-140T-160T models.
Terminal Board
Terminal Board HMI040-060-080
Illustrates the terminal board layout for HMI040-060-080 models.
Commissioning - Warnings
Start-Up
Outlines the steps and checks required for starting up the unit.
Maintenance
Precautions Measures to Observe During Maintenance
Lists essential precautions for performing maintenance tasks safely.
List of the Recommended Periodic Interventions
Recommended Periodic Maintenance Interventions
Provides a schedule of recommended maintenance activities for the unit.
Periodic Maintenance Interventions Recommended for Units with Centrifugal Compressors
General Controls
Lists general checks for units with centrifugal compressors.
Controls on Electrical Parts
Details checks for electrical components on units with centrifugal compressors.
Controls on Cooling Circuit Parts
Lists checks for cooling circuit components on units with centrifugal compressors.
Decommissioning and Disposing of the Machine Components
Provides instructions for safely decommissioning and disposing of unit components.

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