HISEER AS10S/L Manual de instrucciones

AIR TO WATER HEAT PUMP

---------- Standard EVI

AS10S/L&AS13S/L AS20S/L

Operation, installation &maintenance manual

V.201510

The installation of this unit is to adhere to all local

Building Codes and Standards

Index

Nomenclature....................................................................................................................................2

Working principle..............................................................................................................................3

Specialist Tools .................................................................................................................................4

Pre-installation ..................................................................................................................................5

Installation Location .........................................................................................................................7

Positioning ........................................................................................................................................8

Buffer Tank .......................................................................................................................................9

Frost Protection...............................................................................................................................10

System Overview Heating Hot Water Production ........................................................................... 11

System Overview Heating, Cooling with Hot Water Production with Boiler back up ...................13

System Overview Multiple Units in Series Cascade Connection ...................................................15

Installation.......................................................................................................................................17

Electrical connection.......................................................................................................................18

User Guide ......................................................................................................................................24

Service Parameters:.........................................................................................................................39

Service Guide..................................................................................................................................40

Commissioning and Adjusting ........................................................................................................47

Commissioning Form......................................................................................................................49

Alarms.............................................................................................................................................50

Maintenance....................................................................................................................................56

Dimensions .....................................................................................................................................59

Water Pressure Plots........................................................................................................................60

Temperature and sensor resistance table .........................................................................................63

Components ....................................................................................................................................65

Technical Specifications..................................................................................................................66

Nomenclature

Working principle

Buffer tank

ET ST

HEAT PUMP

SAK

EXP

AIV

①

②

③

④

⑤

⑥

1. The low pressure and low temperature liquid refrigerant coming out of

expansion valve exacts heat energy from the air through finned coil

heat exchanger ①and evaporates into gas state.

2. The gas state refrigerant is sucked into compressor ②and

compressed to high pressure and high temp. gas .

3. The high pressure and high temp. gas discharged by compressor

releases its heat energy to water in plate exchanger ③and condensed

to liquid state.

4. The liquid state refrigerant is expanded in thermostatic expansion

valve ④and become low pressure and low temperature liquid

refrigerant.

5. The cycle repeats.

6. When EVI condition is met, EVI expansion valve ⑥will open and

some liquid gas will expand and the gas will be inject into compressor

middle containment after absorbing heat from main branch liquid gas

in the economizer ⑤. With this EVI function, not only heat pump

heating capacity and COP will increase ,but also compressor discharge

temp. could be controlled within safety limit and the heat pump

workable ambient temp. could be extended to -25℃。

Working principle

Specialist Tools

Specialist tools that might be used on installation, commissioning and maintenance.

The tools as exclusive tools for R410A refrigerant.

1 Gauge manifold ·Only for R410A

·Use the existing fitting specifications.(G1/4”)

·Use high-tension side pressure of 5.3MPa·G or over.

2 Charge hose ·Only for R410A

·Use pressure performance of 5.09MPa·G or over.

3 Electronic scale

4 Gas leak detector ·Use the detector for R410A.

5.Vacuum pump (pump with reverse flow preventive function)

6 Refrigerant charge base

7 Refrigerant cylinder ·Only for R410A Top of cylinder (Pink)Cylinder with syphon

8 Refrigerant recovery equipment

9. Torque wrench

10. Multi-meter

11. screwdrivers

Specialist Tools

Pre-installation

Movement and Storage

The unit must not be transported, moved or stored at greater than a 30° angle from the

upright position. Store the unit in a dry area until required.

The unit must be installed by a suitably qualified tradesperson and all electrical wiring

must be completed by a licensed electrical contractor in accordance with all local

Standards.

Safety

The installation must be overseen by a qualified person, in order to avoid an incorrect

installation that could damage to the unit or cause injuries to people. Any faults and or

leaks must be repaired immediately before the unit continues to operate. If repairs

have been carried out to the unit then operation of the safety devices and parameter

must be rechecked.

If a refrigerant leak occurs, remove the complete charge using a recovery unit and

store the refrigerant in mobile container.

Note: care is to be taken as the refrigerant can breakdown due to high temperature,

these refrigerants by-products are dangerous.

Once the leak has been repaired recharge the unit with the correct filling weight and

the type found on the unit’s nameplate.

Note: ensure the correct refrigerant gas is used to recharge the unit as an incorrect

gas can cause damage beyond repair to the compressor.

Do not use oxygen to purge lines or to pressurize a unit for any purpose. Oxygen

gas reacts violently with oil, grease and other common substances. Use only

refrigerant or dry nitrogen for testing.

Never exceed the specified maximum operating pressures.

Pre-Installation

Do not un-weld or flame cut the refrigerant lines including any refrigerant circuit

components until the entire refrigerant (liquid and vapour) has been removed from

unit. Traces of vapour should be displaced with dry nitrogen.

Refrigerant in contact with an open flame will produces toxic gases.

Ensure that the necessary safety protection equipment is available when servicing.

Have the appropriate fire extinguishers for that system.

Do not siphon refrigerant.

Avoid spilling liquid refrigerant onto the skin or splashing it into the eyes. Use safety

goggles. Wash any spills from the skin with soap and water. If liquid refrigerant enters

the eyes, immediately and abundantly flush the eyes with water and consult medical

advice.

Note: Never apply an open flame or live stream to a refrigerant container. This can

dangerously overpressure and cause an explosion.

Compressor oil type : 3MA POE

The heating system must be pressure tested and air vented completely.

Filling water and supplemented water must be drinking water quality (colourless,

clear ,free from sediments)

Filling water and supplemented water must be pre-filtered. (pore size max. 5um)

Pre-Installation

Installation Location

The unit must be installed on a solid level surface on a concrete pad foundation

not connected to the house foundation. Rubber cushions can be added to reduce

vibration and noise if required.

The unit should be place so that it is well away from bedrooms or noise sensitive

areas including neighbour’s section boundaries. (The unit will produce noise that

is above the minimum 45 decibel rating).

The unit should be well ventilated with no obstructions and kept level at all times.

Ensure there is good drainage around installation area and make sure this water

cannot run out onto paths as it may cause ice or slime build up which is

undesirable. (The unit can produce large volumes of condensation water when

running in high humidity zones. There is also a large run off when the unit melts

ice during a defrost cycle).

Avoid locations exposed to machine oil vapour, salty air, thermal springs sulphur

gases or other harsh substances

If operation in temperatures below 0°C for prolonged periods or locations where

the snow may fall the unit must be raised at least 300mm off the ground. This is

necessary to avoid ice build-up on the unit’s chassis.

The unit must be installed level in both axes (less than 2mm tolerance per meter)

Locations exposed to strong winds should be avoided otherwise baffles may be

necessary to deflect strong winds and to prevent snow from blowing directly into

the unit. They must not restrict air flow into the unit.

Keep suitable distance between the unit and the building to ensure the normal

running of the unit and enough room is available for maintenance.

Installation Location

Positioning

≥1,550mm

≥600mm

≥550mm

≥600mm

Positioning

Buffer Tank

A buffer tank is recommended to ensure a trouble free heat pump operation. A suitable

buffer tank can avoid excessive heat pump cycling (switching on and off).

The buffer tank provides a hydraulic separation from the volume flow in the heat

pump and heating circuits. The volume flow in the heat pump circuit remains constant,

even if the heating circuit volume flow is reduced by thermostatic valves.

If the total of the systems water volume is less than 12L/KW then a buffer tank should

be added to reduce the compressor from ON/OFF cycling. This will prolong the

compressor life span.

When a buffer tank is installed, the heating system will absorb energy from the buffer

tank first. To save energy consumption ,install the indoor pump P1 that is switched on

only when compressor is on. This is by changing EV01 indoor pump mode to “work

by regulation”.

Inlet water temp sensor should be taken out of the unit and put into buffer tank’s

sensor pocket. The Inlet water temp sensor is located on inlet water pipe. The Inlet

water temperature sensor B1 in the buffer tank will control the tank temperature by

starting and stopping the compressor and pump together as required.

If Inlet water temp sensor has not been changed to buffer tank’s sensor pocket when

EV01 has been changed to “work by regulation”, when the unit reaches its set

temperature ,the compressor will stop, pump P1 will also stop accordingly due to

EV01 being set to “work by regulation”. When this occurs ,there is no water

circulation between the heat pump and buffer tank. Inlet water temp will keep its

stopped temperature ,not the buffer tank water temperature. Inlet water temp sensor

B1 then can not switch on compressor and pump P1 even when buffer tank water is

getting cold. Changing the Inlet water temp sensor into the buffer tank will avoid this

problem.

Buffer Tank

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