Skyline Energy SX-11CCZA, SX15-CCZA, SX-17CCZA, SX-18ZA, SX-19ZA Installation And Operating Manual

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SKYLINE ENERGY

SINGLE-COMPRESSOR HYDROCARBON HYDRONIC HEATPUMP

INSTALLATION AND OPERATING GUIDE

SX-11CCZA, SX-13CCZA, SX-15CCZA, SX-17CCZA, SX-18ZA & SX-19ZA

PCB version CG248008, LCD version CG248009

PRIL

2019

Simplified rules for sizing your heat-pump.

•

Calculate how many kW are required

•

Look at the climatology of the location to establish the duration of 0oC to +4oC. Don’t just look at the extreme temps, look at the mean overnight temp and duration

•

If the ambient air temp rarely dips below +4oC or does so for short periods then you can use this simple calculation...

3.3 x electricity input kW = output kW.

•

If the mean overnight ambient air temp is between 0oC and +4oC change the calculation to 2.5 x electricity input kW = output kW

•

Skyline Energy will not warranty a heat-pump that has been undersized for its application.

Foundations & Drainage

1/ When siting the heatpump at ground level, the simplest method of

mounting the heatpump is to use 2 or 3 concrete house stumps lying on their sides

2/ If a slab has been prepared, it is still best to use the stumps to raise the

unit above the ground.

3/ There are many drain holes directly under the unit.

4/ Heatpumps generate a large amount of condensate. If placed over gravel

or earth the condensate will drain away, but if the unit is placed over a paved area additional drainage will be required to deal with condensate.

5/ The buffertank however can be placed directly on a paved area or paving

slab.

6/ If you are concerned about airflow due to installation in a pathway etc...

Try mounting the heat-pump about 1 meter high on wall brackets, this will allow the cold air to fall away from the unit.

Water flow-rate in the primary circuit:

Before anything else you MUST plan to achieve the required water flow rate in the primary circuit between the heatpump and buffertank.

Adequate water flow-rate is critical to achieve maximum efficiency.

(Just because a unit is heating does not mean its running efficiently)

Avoid restrictive plumbing. Use large diameter pipes for the primary flow and return, and limit elbows and sharp bends.

The temperature rise across the heatpump inlet and outlet ports is directly proportional to the water flow-rate.

Generally, the lower the temp rise = higher flow rate = higher efficiency

Use enquiry code “A5” and “A6” to read the temperature rise which should be 4oC or lower for all models.

Airflow:

1/ In general, all Skyline Energy single-compressor hydrocarbon hydronic

heatpumps require clearance on all sides.

2/ If possible, do not place large objects within 2 meters in front of the fans. If this is not possible, the heatpump should be sited for example, at the corner of a building where there is good airflow potential around the corner.

3/ Fresh air flow is critical... You must avoid the possibility of waste cold air

back-feeding to the unit and driving down its efficiency.

4/ Do not place trellis in front of the fans... If the unit must be hidden, then

it is best to use louvers.

5/ Do not place the unit under the building, in a garage, or any other

confined space.

Buffertanks:

Skyline Energy 200Lt 3-zone buffertank dimensions April 2019

Buffertanks: (continued)

Skyline Energy 200Lt 2-zone buffertank dimensions April 2019

Buffertanks: (continued)

Skyline Energy 100Lt 2-zone buffertank dimensions April 2019

Electrical install notes:

1/ Room thermostat wiring to be 1.0mm or 1.5mm TPS.

2/ Room thermostats to be placed in a horizontal wall plate @ 1500mm

above floor level.

3/ Locate room thermostats away from heat sources e.g. ovens, radiators,

aircons or sunlight.

4/ The minimum capacity circuit breaker is as per the table, but be aware of

higher than normal grid voltage that can make the units draw more current than posted. If circulation pumps are on the same circuit, they will add to the load.

5/ Power supply is to be connected to the enclosure with the 2 pole RCD

6/ Thermostats to be connected their relevant test switch.

7/ Although the control panel indicates a Flow-switch is installed, there is

no flow-switch and its input is bridged-out.

8/ The “Stat test” switch is provided to bridge-out the room themostats

during commissioning and testing... Holding the stat test switch closed for about 15 seconds will energise the controller and energise the latch relay if the buffertank water temperature is lower than the programmed start up temperature.

9/ Latest models have GPOs fitted for the pumps

10/ The buffertank water temperature sensor MUST be pushed to the

bottom of the sensor-well or it will read low. Best to fill the back of the gland with foam to make sure the cable is clamped... Be aware that sensors tend to migrate out of the sensor-well if not secured in firmly.

Skyline Energy SX-13CCZA hydrocarbon hydronic heatpump performance graph

*Specifications:

MODEL SX-11CCZA SX-13CCZA SX15-CCZA SX-17CCZA OUTPUT @ 10C 7.5kW 9kW 10kW 12kW INPUT KW*(AVG) 2.2kW 2.3kW* 2.8kW* 3.0kW* INPUT AMPS* 10.5A* 12A* 14A* 16A* CIRCUIT SIZE 16 20 25 32 SOFT START N/A OPTIONAL YES YES HEIGHT 1300 1300 1300 1300 DEPTH 650 650 650 650 WIDTH 1270 1270 1270 1270 POWER SUPPLY 230V 1PH 230V 1PH 230V 1PH 230V 1PH REFRIGERANT TYPE Hydrocarbons Hydrocarbons Hydrocarbons Hydrocarbons REFRIGERANT BLEND Minus 50 Minus 50 Minus 50 Minus 50 COMPRESSOR ZR-28K3E ZR-34K3E ZR-40K3E ZR-47K3E FLOW RATE 40Lt/min 40Lt/min 40Lt/min 40Lt/min PRESSURE DROP 45kpa 45kpa 45kpa 45kpa PIPE SIZE 25mm 25mm 25mm 25mm PRIMARY PUMP MODEL GPD32-9 GPD32-9 GPD32-9 GPD32-9 PRIMARY PUMP WATTS 300W 300W 300W 300W C.O.P. @ 10C 3.6 3.95 3.6 3.7

SOUND LEVEL @ 3M 54db 54db 54db 54db

NOTES:

• kW input and output, and amps are rated at 230 volt... Higher supply voltages can drive the imput current a lot higher than specified.

• * Circulation pump loads are not included in kW input ranges, however an allowance for these loads has been made in circuit size recommendations

• *Specifications are subject to change without notice – contact Skyline Energy for support.

Real World Testing:

Unlike most heat-pump manufacturers, we test every unit in the ambient temperature range where they are really meant to operate.

We test and fine-tune EVERY unit prior to dispatch and ensure that it’s C.O.P. is as high as possible.

Claims by others of C.O.P.’s of 4 or 5, may be correct in a lab with a standard test condition of 20oC ambient and a water temp of 15oC, but the C.O.P.’s of these units will be much lower at lower ambient air temperature and higher starting/returning water temperatures.

Most other brands of heatpumps are set-up specifically for pool heating or potable hot water heating under a variety of climatic conditions. Our heatpumps are set-up specifically for hydronic and are fine-tuned to operate specifically between 35oC to 55oC water temperature, and -5oC to +15oC ambient air temperature.

Sound level – locating the heatpump:

1/ High capacity heatpumps can create relatively high noise, so please be

considerate of neighbours when locating the heatpump. A good location would be behind a solid barrier such as a shed, garage, water tank etc...

2/ Do not site a sidedraft unit with its fans facing toward close neighbours.

3/ Sound will dissipate more rapidly the higher the unit is installed. On a

steeply sloping property, uphill is better than downhill.

4/ The buffertank can be installed right next to the heatpump, or 40meters

or more away. The primary flow & return lines to and from the buffertank should be well insulated to ensure minimal heatloss. Ensure the correct water flowrate is maintained and a booster-pump, and possibly larger diameter pipe may be necessary to overcome friction loss. Flowrate is critical to efficiency and must be kept within specs.

5/ Placing the heatpump close to a carport or veranda can amplify sound

level.

6/ Skyline Energy will not be responsible for poor placement of heatpumps

that create noise problems.

Configurations:

1/ The heatpump and buffertank can be sited side-by-side or the heatpump

located 50 or more metres from the buffertank, but in all cases the primary flow and return water pipes should be of adequate size, and the primary circulation pump of adequate size to provide the required water flow rate.

2/ The primary flow and return water pipes should be well insulated, and if

trenched they must be sealed inside an outer casing such as flexible unslotted drainage pipe, or stormwater pipe to keep the insulation dry and minimise heat-loss.

3/ The primary water circulation pump can be placed at the tank or

heatpump, and in some models they may be installed inside the heatpump cabinet.

4/ Heatpump control systems are usually fixed to the cabinet, but systems

can be ordered for remote location such as a plantroom.

5/ Multi-zoned systems with multiple zone connections to the buffertank,

should always have the buffertank placed as close as possible to a floorcoil manifold, radiator manifold etc. Only single zoned systems may have the buffertank placed remotely from the manifold/radiator system.

6/ The expansion tank sub-system (pressure gauge, pressure relief valve,

cold-fill valve etc.) can be placed anywhere in the system, but more commonly fitted close to the buffertank.

7/ Buffertanks, all circulation pumps, expansion sub-systems etc, should all

be installed sheltered from the weather if possible, to minimise heat-loss and increase service life. (They can be installed fully exposed to weather

but it is best practice to maximise efficiency.)

8/ Heatpumps must be installed where continuous fresh air is available,

generally they should not be in any enclosed space. If this can not be avoided, then clean airflow is required through ductwork, or at the very least through unobscured mesh or louvered wall/enclosure.

Typical installation diagram:

Bleeding and Buffertank

1/ The most common failure at commissioning is created by excess air, an

air blockage causing no water flow.

2/ If the compressor shuts down about 20 seconds after starting

95% CHANCE, YOU HAVE AN AIR-LOCK

3/ After initial commissioning, the auto air bleed valve on the top of the

tank should expel most of the air.

4/ Other places for bleeding are the floorcoil manifolds, radiators, and the

big Silver screws on the pumps.

5/ It is good practice to place an auto air bleed valve at any high points in

the plumbing.

Onsite-testing heatpump output:

1/ There is an onsite test to prove the efficiency of the system, measuring

the time it takes for the buffertank to heat. This test will always give a slightly lower result because of the losses that will be in any buffertank system. Our test rig has so much plumbing, pumps, valves, flow meter with minimal insulation that the tank warm-up calculation provides a result typically 20% less that the standard skyline test across the heat exchanger.

2/ How to do a site test

a/ Load the system without running the heatpump to get the

buffertank water temperature down to about 35oC. Can do this by pressing the power key to stop the heatpump operating, and then increase the room thermostat to call for heat.

b/ When the buffertank water temperature is down to about 35oC

Press the power key on the heat-pump to display the heat icon.

c/ Turn off the room thermostat.

d/ Close the zone valve(s) to isolate the load (house) from the

buffertank as the primary water flow and return circuit circulation pump will tend to push water through the zones and add extra load.

e/ Now there is known heatload, equivalent to the capacity of the

buffertank + primary plumbing + heat pump. (Typically about 10Lt more than the capacity of the buffertank)

f/ Time the duration for the water in the buffertank to rise by 10oC

g/ After the test, remember to OPEN THE ZONE VALVE(S).

Onsite-testing heatpump output - continued:

Formula to Calculate Kilojoules;

4816 x LOAD x RISE / 1000/60/TIME = kW OUTPUT LOAD = Tank capacity plus plumbing TIME = Duration of test RISE = 10C 4186 x 210 x10/1000 = 8790kj

EXAMPLE:

200Lt buffertank +10Lt plumbing, LOAD = 210 Temperature rise was 10C, RISE= 10 4186 x 210 x10/1000 = 8790kj

Conversion kj to kW;

Stopwatch says it took 15 minutes, TIME= 15 8790/60/15 = 9.77kW output

Typical side-draught-model heatpump installations:

Skyline Energy 200Lt buffertank

Stainless Steel (2-zone or 3-zone):

Typical 200Lt 2-zone buffertank installation:

Shut off valve... Dual check valve... Auto fill valve...

typical

Operation:

1/ The system is primarily driven from the room thermostat(s).

2/ Room thermostat(s) directly controls the zone circulation pump(s) and

may kickstart the buffertank controller.

3/ Zone pump delivers water to the floorcoils or radiators.

4/ When the room thermostat(s) call for heat, the buffertank controller

fires-up and will make a decision based on the buffertank water temperature, to energize the primary circulation pump and start the heatpump.

5/ The buffertank controller will stay latched ON once a decision to start

the heatpump has been made. The buffertank controller will only stop the heatpump after the buffertank water temperature has reached its set temperature, regardless of the room thermostat turning on or off.

6/ The room thermostat cannot stop the heatpump, it can only start the

heatpump when the buffertank water temperature is lower than the set temperature differential.

7/ The “latching” procedure described above is designed to prevent the

heat-pump “short-cycling” when a room thermostat turns off and on rapidly.

8/ The “test” switch provided next to the controllers is a simple bridge

across the room thermostat. It will only do what the room thermostat will do and is used for convenient commissioning and fault-finding.

Important. The system will not operate unless the

“power” button on the controller needs has been

pushed, state is ON, and the “water heat” icon is

displayed.

Part 1: Operating panel introduction

1. Display interface

2. Buttons function

↓↓↓↓

Clock M + - power

2.1 “Power” button

● Press and hold the Power button for 1 second to turn ON and turn OFF (change State to ON

Off) the heatpump. (water heat icon is displayed when ON)

● Press the Power button at any time to quickly exit to home screen .

● Press and hold the Power button for 5 seconds to unlock other buttons.

2.2 “M” button

● Under main interface, press the “M” button to query the working status parameters

2.3 “+”and “-“ buttons

● Press the “+” and “-“ buttons to navigate through the query parameters and pages, and to

change the setting values when in the settings interface.

● Combine the “M” and the “+” and “-“ buttons to query and set parameters

● When the heatpump is ON and the water heat icon is displayed, press the “+” and “-“

buttons to change the “set” water temperature

2.4 “clock” button

● Press the “clock” button for 10seconds to enter the clock setting interface

● Press the “clock” button to enter the timer ON/OFF setting, and combine with the “+” and

“-“ buttons to set the timer.

3. Operating

3.1 Parameters query and setting

①①①①

Working status parameters query

To enter the working status query section, press the “M” button, and scroll through the

parameter settings display.

Working status parameters (table 1)

Code Parameter

No code Water tank temp (oC)

A1 Air heat exchanger1 lowest tube temp (oC)

A2 Inlet gas temperature of compressor 1 (oC)

A3 Outlet gas temperature of compressor 1 (oC)

A4 Ambient air temperature (oC)

A5 Outlet water temperature (oC)

A6 Inlet/return water temperature (oC)

A7 Reserved

A8 Compressor 1 current (Amps)

A9 Electric expansion valve 1 open degree

A10 Reserved

B1 Air heat exchanger 2 lowest tube temp (oC)

B2 Inlet gas temperature of compressor 2 (oC)

B3 Outlet gas temperature of compressor 2 (oC)

B8 Compressor 2 current (Amps)

B9 Electric expansion valve 2 open degree

C1 Reserved

～

History error code

Error code (table2)

(NOT USED)

Error code Parameter

Er01 Wrong phase error

Er02

Er03

Er05

Er06

Er07

Er08

Er09

Er11

Er12

Er13

Er15

Er16

Er17

Er18

Er19

Lack phase error

Water flow switch error

Outlet gas pressure of compressor 1 is too high error

Inlet gas pressure of compressor 1 is too low error

Outlet gas pressure of compressor2 is too high error

Inlet gas pressure of compressor 2 is too low error

Communication error

Time limit for locking heatpump reached

Outlet gas temp of compressor 1 too high error

Outlet gas temp of compressor 2 too high error

Buffertank temp sensor error

Air heat exchanger 1 lowest tube temp sensor error

Air heat exchanger 2 lowest tube temp sensor error

Outlet gas temp sensor of compressor 1 error

Outlet gas temp sensor of compressor 2 error

Er21

Er22

Er25

Er27

Er29

Er30

Er35

Er36

Er44 Ambient temp too low protection

Er45 Outlet water temp too high error

Ambient air temp sensor error

Return water temp sensor error of water tank

Water level switch error

Outlet water temp sensor error

Inlet gas temp sensor of compressor 1 error

Inlet gas temp sensor of compressor 2 error

Compressor 1 current too high error

Compressor 2 current too high error

②②②②

User parameters query and setting (works in both ON and OFF state)

To enter the USER parameters query and settings interface:

◆

Under the main interface, press and hold the “M” button for 3seconds, then press

“+”and “-“ buttons, to scroll through settings.

◆

To change a setting, enter the interface as described above, navigate to the parameter you

want to change, press the “M” button again, and press “+”and “-“ buttons to increase or

decrease the value, then press the “M” button again to save the new setting and return to the

query interface.

◆

Under USER parameters query interface and setting interface, if there is no button press

for 30 seconds the system will automatically quit user parameter query or setting interface,

and return to main interface, (you can also press “Power” button to immediately return to

the main interface also)

USER parameters query and setting (table 3)

Code Meaning Setting range Factory setting

℃

～

℃

～25℃

℃

～

～25℃

～60℃

5℃

/// Buffertank water temp setting

L2 Compressor restart temperature drop 2

L4 Reserved

Preset buffertank water temperature

of heating mode

Ambient air temperature below which electric heater is allowed to

start (NOT USED)

Return water temperature from buffertank

Buffertank temperature below which allow to compensate cool water

value

-25

20oC～65℃

55℃ (SET at the main interface)

55℃

NOT USED

20℃ (20℃: compensate cool water

is not limited by water tank temperature)

L8 Compressor current

L9 Reserved

0～40A 0（0: will not detect current）

③③③③

Factory parameters query and setting (works in both ON and OFF state)

To enter the FACTORY parameters query and settings interface:

◆

Under main interface, press “Power” button and “+” button at the same time for 3

seconds, enter factory parameters password interface, will display “0.0.0.0”, press “clock”

button, to jump between the four figures of password, press “+” or “-“ buttons, to change

the value the four figures, their value should be “0.8.1.4”, then press “M” button to confirm

password, if password is correct, will enter factory parameter query interface

◆

At factory parameter query interface, press “M” button to enter current parameter setting

state, press “+” or “-“ buttons to change current parameter value, then press “M” button, to

return to query state.

◆

At factory parameter query interface and setting interface if there is no button press for

30 seconds the system will automatically quit FACTORY parameter query or setting

interface, and return to main interface, (you can also press “Power” button to immediately

return to the main interface also)

℃

FACTORY parameters query and setting (table 4)

Code Meaning Setting range

Ambient air temperature below

H3 Defrost period setting

H5 Longest defrosting time setting

P2 Target superheat temp setting

P5 Min open degree of EEV

P7 EEV step by manual

F7 Reserved

Remarks: F4 only valid for cascade connection way.

which heat pump will stop working to protect

Air HE lowest tube temp below which system will enter defrost

Air HE lowest tube temp above which system will quit defrost The temp difference between ambient temp and air HE lowest tube temp higher than which system will enter defrost Ambient temp below which system will enter defrost Action period setting of electric expansion valve

Outlet gas temp at which EEV will adjust to keep the temp EEV open degree when defrosting

EEV choice for automatically and manually

Upper limit of water tank temp setting Circulating water pump choice when only electric heater working Temp difference of displaying temp and real temp of water tank

Water flow switch installing way choice

Water pump working state when heat pump standby Outlet water temp too high protection at heating mode

Outlet gas temp setting for too high protection

-30℃ ～0℃ -10℃

20min 90min

-15℃ ～ -1℃ -3℃

5min ～20min

1℃ ～40℃ 13℃

0℃ ～+15℃ 2℃

0 ～ 20℃ 10℃

20s ～90s

-5℃ ～10℃ 4℃

80℃ ～110℃ 95℃

2 ～50

2 ～ 30

0（manual \1（auto） 2～45

30℃ ～90℃ 60℃

0/1 1

-5℃ ～15℃ 2℃

0 /1 0

0/1 1

35℃ ～85℃ 62℃

100

～

126℃

Factory setting

55min

8min

30s

）

115℃

Remarks

0：work/1：not work

0:independent/1 share

0: non-stop 1: stop

：

④④④④

Time limit setting

To enter the time limit setting parameters query and settings interface, the process is same

as factory parameter query and setting, password is “8.5.6.3”

Time limit query and setting (table 5)

Code

Limited weeks after which heat pump will

3.2 Other operation

①①①①

Clock setting

◆

At main interface, press “clock” button for 5 seconds, enter clock setting interface

◆

At clock interface, press “clock” button, then “hour” flash, press “+”or “-”button，can

set hour.

◆

After finish setting hour, press “clock” button, then “minute” flash, now press “+”or“-

Meaning

not allowed work

Setting

range

0～99

Initial

value

Remarks

The unit is “week”

“0”means not time limited

”button，can set minute.

◆

After finish setting minute, press “clock” button, to confirm clock setting, and back to

main interface.

◆

At clock setting interface, if there is not operation within 30seconds, system will

confirm clock setting and back to main interface automatically.

◆

At clock setting interface, press “power” button, can confirm current clock setting and

back to main interface.

②②②②

Timer setting and cancelling (ON/OFF timer)

◆

At main interface, press “clock” button, enter timer group setting.

Now press “+”or“-”button, can switch timer groups, there are 4 groups ON/OFF timer.

◆

When group 1 ON timer flashing, press “clock” button, enter group 1 ON timer “hour”

setting interface, “hour” flash, then press “+”or“-”button，then can set “hour” for group 1

ON timer.

◆

After finish setting “hour”, press “clock” button, then “minute” flash, then press “+”or“-

”button，can set “minute” for group 1 timer.

◆

After finish setting group 1 ON timer “minute”, press “clock” button, enter group 1 OFF

timer setting, same way like ON timer setting..

◆

After finish setting group 1 ON/OFF timer, press “clock” button, confirm group 1

setting, and enter group 2 ON/OFF timer setting, same way like group 1 setting.

◆

At timer interface, if there is not operation within 30seconds, then confirm current timer

setting, and back to main interface (this setting can be remembered if electricity is cut off)

◆

At timer interface, press “clock” button, confirm current timer setting, and back to main

interface.

◆

Other groups ON/OFF timer setting are same way like group1.

◆

Remarks: 1 and 2 timers are heat pump ON/OFF timer, 3 timer is for return water, 4

timer is for compensating cool water.

◆

How to cancel timer?

At timer interface, press “clock” button for 5seconds, when the ON and OFF signal

disappear, then press “power” button to confirm, can cancel current group ON/OFF timer.

③③③③

Lock keys and unlock keys

◆

At locking state, press “power” button for 3seconds, buzzer will give a voice of “Di”,

keys will be locked.

◆

If there is not operation within 60seconds constantly, will lock keys automatically.

④④④④

Forced defrosting

◆

At ON status, press “-”for 3seconds, enter forced defrost.

◆

To quit forced defrost, there are two ways.

a. Automatic quitting: when defrost time reach H5 setting, can quit forced defrost.

b. Forced quitting: Press “power”button，after power off, 3minutes later, will quit forced

defrost completely.

⑤⑤⑤⑤Remove history error code

At the interface of query history error code, press “power” and “M” button together for

5seconds, can remove all the history error code.

⑥⑥⑥⑥One-click restore function

Under power off status, press “power” and “-“ button together for 5seconds, can restore

factory setting.

Part 2. Working modes:

1. Heating mode

◆

Water tank temp ≤ Water tank preset temp L3-Compressor restart temp drop setting L2, start

to heat.

◆

Water tank temp ≥ water tank preset temp L3, stop heating.

2. Defrost mode

2.1 Conditions of entering defrost when heating

◆

Ambient temp≤H8 value，and air heat exchanger lowest tube temp≤H4 value, and lasts for

≥ 3min；

◆

Compressor total working time≥H2 value，and lasts for≥5min

◆

(Ambient temp － Air heat exchanger lowest tube temp)≥preset temp H7，and lasts for

more than 30sec.

When heating, when all of above conditions are met, system will enter defrost.

2.2 Conditions of quitting defrost when heating

When air heat exchanger lowest tube temp＞H6 value, or defrosting time reach H5, system

quit defrost.

：：：：

2.3 Defrost running

①When defrost entering conditions are met, will work as below:

◆

Compressor and fan motor stop working.

◆

At 30sec, four way valve get electricity, electric heater start.

◆

At 60sec, compressor starts.

②When defrost quitting conditions are met, will work as below:

◆

Compressor stop working

：：：：

◆

At 55sec, four way valve losses electricity, electric heater stop working (according to

electric heater controlling logistic to judge if electric heater continues to work)

◆

At 60sec, fan motor starts.

◆

At 65sec, compressor start, recover normal heating mode.

◆

Compressor total working time will be reset, and re-timing.

2.4 Quit defrost abnormally

◆

Turn off heat pump when defrosting, system will quit defrost at once first, then heat

pump stop working.

◆

There are error happen and heat pump stop working to protect when defrosting, system

will quit defrost at once, and stop working.

◆

When defrosting, system doesn’t detect low pressure protection.

：：：：

Part 3. Each electrical component controlling

1. Compressor

◆

Compressor start / stop according to hot water tank real temperature and preset temp.

◆

After compressor stops, should need at least 3min, then it can restart again.

◆

After compressor start, should work at least 2min first, then can stop. (Except turned off or

there is error).

◆

There is not 3min protection for the first time starting.

2. Four - way valve

◆

When heating, 4-way valve lose electricity.

◆

Four way valve delay 2min to change direction after compressor stop.

◆

When defrosting and forced defrosting, 4-way valve get electricity, refer to defrosting

process.

3. Circulating water pump

◆

When system request power on, water pump start at once；

◆

When system request power off，water pump delay 30s to stop after compressor stop；

◆

When defrost, water pump doesn’t stop.

4. Fan motor

◆

after water pump worked for 30s, fan motor start；When heat pump powers off, fan motor and

compressor stop at the same time.

◆

When defrosting, fan motor doesn’t work, refer to defrosting process.

5. Auxiliary electric heater

5.1 Starting conditions：

◆

At heating mode

◆

Ambient temperature ≤ L5 setting.

◆

Water tank temperature < water tank preset temperature - L2.

◆

Low level switch connects.

When all of above conditions are met, electric heater starts.

5.2 Stopping conditions:

◆

Water tank temp ≥ water tank preset temp when heating.

◆

Water tank temp sensor damaged and controller show error code.

◆

Ambient temp ≥ parameter L5+2℃；

◆

Water level switch has error

◆

Low level switch disconnects

Any of above condition is met, electric heater stops.

5.3 When defrosting, forced defrosting, secondary anti-freeze, electric heater is forced to start.

5.4 Except there is water level error, hot water tank temp sensor error, when there is other temp

error, high and low pressure error protection, electric heater will start.

6. Return water vale (When L6=20℃℃℃℃, return water function is invalid)

6.1 Condition of return water valve open (should met at the same time):

◆

Low water level switch connects

◆

Water tank temp ≥ preset return water temp L6 + 5

◆

Return water temp ≤ L6 – 5

6.2 Condition of return water valve close (meet any below condition):

◆

Low water level switch disconnects

◆

Water tank temp ＜ preset return water temp L6 + 5

◆

Return water temp ＞ L6

7. Cool water compensating valve

7.1 After compensate cool water manually, before high water level switch connects, the cool

water compensating valve opens all the time, until high water level switch connects, this valve

will recover normal controlling function.

7.2 When select there is not cool water compensating timer, system can compensate cool water at

any time.

7.3 When select there is cool water compensating timer, system can compensate cool water only

in cool water compensating timer period.

7.4 Cool water compensating controlling as below:

①When low water level switch is disconnecting, cool water compensating valve open.

②When low water level switch connects, and high level switch disconnects, according to

below work.

◆

Water tank temp ≥ preset cool water compensating temp L7, cool water compensating

valve open to compensate.

◆

When water tank temp ≤ preset cool water compensating temp L7-5，cool water

compensating valve close.

③When high water level switch connects, cool water compensating valve closes.

④When heat pump is under off state, cool water compensating valve is not allowed to pen,

⑤When defrost, cool water compensating valve is forced to close.

8. Electric expansion valve

Because of electric expansion valve working is very complicated, here will not descript how it

working.

Part 4. Error and protections

1. Communication error and protection

◆

Within 20seconds at the first time power on heat pump, if PC board can’t get signal from

operating panel all the time, operating panel can’t exit from whole show. PCB will not conduct,

system will work according to “the last time working status parameters that operating panel

input” only.

◆

In the process of power on, if operating panel can’t get signal from PC board constantly for

10seconds, system will judge this communication error, and display Er:09, heat pump work

according to former preset temperature, when communication recover, Er:09 will disappear.

2.Three phase protection

When power on, system will check the three phase live line, if there is wrong phase or lack of

phase, system will enter phase protection, and turn off all output and display error code, only

after remove error and re-supply electricity, system will back to normal work.

3. Ambient air temperature sensor error

◆

After heat pump power on, if detect ambient temperature sensor is short circuit or open circuit,

system will judge ambient temperature sensor error, heat pump continue to work.

◆

When this error happens, relative anti-freeze condition will be invalid.

◆

This error can recover automatically.

（（（（

only valid for 3phase heat pump

））））

◆

When this error happen, operating panel will alarm, and display Er:21.

4. Water tank temperature sensor error

◆

After heat pump power on, if detect hot water tank temperature sensor is short circuit or open

circuit, system will judge hot water tank temperature sensor error, heat pump will stop working.

◆

This error can recover automatically.

◆

When this error happen, operating panel will alarm, and display Er:15.

5. Outlet water temperature sensor error

◆

After heat pump power on, if detect outlet water temperature sensor is short circuit or open

circuit, system will judge outlet water temperature sensor error, heat pump will stop working.

◆

When this error happens, relative anti-freeze condition will be invalid.

◆

This error can recover automatically.

◆

When this error happen, operating panel will alarm, and display Er:27.

6. Return water temperature sensor error

◆

After heat pump power on, if detect return water temperature sensor is short circuit or open

circuit, system will judge return water temperature sensor error, heat pump will continue to work.

◆

When this error happens, return water function will be invalid.

◆

This error can recover automatically.

◆

When this error happen, operating panel will alarm, and display Er:22.

Remarks:

Return water temp sensor is water tank return water temp sensor from hot water system.

7. Air heat exchanger lowest tube temperature sensor error

◆

After heat pump power on, if detect air heat exchanger lowest tube temperature sensor of is

short circuit or open circuit, system will judge air heat exchanger lowest tube temperature sensor

error, heat pump will continue to work.

◆

When this error happens, electric expansion valve controlling will be changed to by manual.

◆

This error can recover automatically. Defrost will be only according to time (defrost period

according to H3)

◆

When this error happen, operating panel will alarm, system 1 display Er:16, system 2 display

Er:17.

8. Inlet gas temperature sensor error

◆

After heat pump power on, if detect inlet gas temperature sensor is short circuit or open

circuit, system will judge inlet gas temperature sensor error, heat pump will continue to work.

◆

When this error happens, electric expansion valve controlling will be changed to by manual.

◆

This error can recover automatically.

◆

When this error happen, operating panel will alarm, system 1 display Er:29, system 2 display

Er:30.

9. Outlet gas temperature sensor error

◆

After heat pump power on, if detect outlet gas temperature sensor is short circuit or open

circuit, system will judge outlet gas temperature sensor error, heat pump will stop working.

◆

This error can recover automatically.

◆

When this error happen, operating panel will alarm, system 1 display Er:18, system 2 display

Er:19.

10. Outlet gas pressure is too high protection

◆

When standby, detect outlet gas pressure switch, if disconnects, system will enter high

pressure protection, and heat pump stop working to protect.

◆

When working, if detect outlet gas pressure switch disconnects for 10seconds, system will

enter high pressure protection, and heat pump stop working.

◆

If this problem happen 3times within 30minutes, system will not recover normal working

unless cut off electricity (the first two times can recover automatically)

◆

When this error happen, operating panel will alarm, and system 1 display Er:05, system 2

display Er:07

11. Inlet gas pressure is too low protection

◆

When standby, detect inlet gas pressure switch, if disconnects, system will enter low pressure

protection, and heat pump stop working to protect.

◆

After compressor has started for 3min, if detect inlet gas pressure switch disconnects for

10seconds, system will enter low pressure protection, and heat pump stop working.

◆

If this problem happen 3times within 30minutes, system will not recover normal working

unless cut off electricity (the first two times can recover automatically)

◆

When this error happen, operating panel will alarm, and system 1 display Er:06, system 2

display Er:08.

12. Outlet gas temperature is too high protection

◆

1 minute after compressor start, detect outlet gas temperature, if the temperature ≥115℃

constantly for 10sec, then system will stop working to protect.

◆

When detect outlet gas temperature ≤ L10-30℃, then system quit the protection.

◆

If this error happen 3times within 30minutes, system will not recover normal working unless

cut off electricity (the first two times can recover automatically)

◆

When this error happen, operating panel will alarm, and system 1 display Er:12, system 2

display Er:13.

13. Outlet water temperature too high protection at heating mode

◆

At heating mode, after compressor has running for 5min, when detect outlet water temperature

≥62℃ (F11), then system will enter too heat protection, compressor and fan motor stop working,

water pump continue to work.

◆

When detect outlet water temperature ≤F11-5℃, then system quit the protection.

◆

When this error happen, operating panel will alarm, and display Er:45.

14 Water flow protection

◆

1 minute after circulating water pump start, detect water flow switch, if the water flow switch

disconnect constantly for 10sec, then system will stop working to protect.

◆

After this error happen, if error doesn’t recover, system will start circulating water pump to

detect water flow per 5min, when this error happen 3times constantly, system will not start

circulating water pump, until detect water flow switch connects, then will start circulating water

pump again,

◆

This error can recover automatically.

◆

When this error happen, operating panel will alarm, and display Er:03.

15. Compressor current is too small or too large protection

◆

6 seconds after compressor start, detect compressor current, if current ≤1A and lasts for 6sec,

or current ≥L8 and lasts for 6sec, system will stop working to protect.

◆

When this error happen, operating panel will alarm, and display Er:35.

16. Ambient temperature too low protection

◆

When ambient temperature <H2, compressor and fan motor will stop working. Hot water tank

electric heater will start.

◆

When this error happen, operating panel will alarm, and display Er:44.

◆

When ambient temperature ＞H2+2, quit the protection, compressor and fan motor start, hot

water tank electric heater will work according to normal condition.

17. Anti-freeze protection in winter

◆

Under standby or power off state, when ambient temperature <2℃, enter 1st step anti-freeze

protection, circulating water pump will start to work for 5minutes per 40min. When outlet water temperature ≤ 4℃, circulating water pump needn’t wait for 40min, can start water pump at once.

◆

Under standby or power off state, When ambient temperature <2℃ and hot water tank

temperature ≤4℃, enter 2nd step anti-freeze protection, heat pump will start to heat. When hot water tank temperature ≥15℃, stop heating, or when ambient temperature ≥8℃, system will quit

the 2nd step anti-freeze.

◆

At the process of anti-freeze, if detect outlet water temperature≤2℃, LCD show error code

Er:04, when detect outlet water temperature≥4℃, quit the error, this error only display, no other

function.

◆

If there is hot water tank temp sensor error, entering 1st step anti-freeze will be only according

to ambient temperature, and only 1st step anti-freeze is valid.

◆

If there is ambient temperature sensor error, enter 1st step anti-freeze protection, when hot

water tank temperature ≤4℃, enter 2

step anti-freeze protection.

◆

If both ambient temperature and outlet water temperature have error, system will only enter 1st

step anti-freeze, start water pump automatically.

18. Water level switch error

◆

Under standby or power off state, if detect high water level switch connects, but low water

level switch disconnects, then judge water level switch has error, heat pump will stop working to

protect.

◆

This error can recover automatically.

◆

When this error happen, operating panel will alarm, and display Er:25.

Part 5. Other functions

1. Power-off memory function.

◆

System will memory the preset working mode and all parameters when power off.

◆

When power on again, can resume the working status and parameters setting automatically.

2. Power on / off at fixed time

◆

Fixed power on time and fixed power off time can be set.

◆

Detailed information can be consulted wired panel operating part.

3. Forced defrosting function

◆

Forced defrosting condition can be entered by operating wired panel.

◆

Detailed information can be consulted operating panel introduction.

4. Error query and memory function

◆

At query interface, when show “Er”, press “+”button or “-”button, can check history error.

◆

Error code is recorded according to time sequence.

◆

At least 6 history error codes can be recorded, and these history error codes can be

remembered even power supply is cut off.

5. Time limit setting by password

◆

Installer can set limited running time, when heat pump total running time reach preset time,

heat pump will be locked, can’t start to work anymore.

◆

Time limit setting can be removed, details can be consulted operating panel introduction.

6. Water tank temperature display correction function

◆

If F3 setting is 0, water tank temperature display correction function is invalid.

◆

If F3 setting is not 0, water tank temperature display temp = water tank real temp + F3

7. When electric heater working only, circulating water pump can be forced to start.

If F2 setting is 1, when electric heater start, circulating water pump will start 3sec in advance.

When electric heater stops, circulating water pump will delay 3sec to stop. Factory setting of F2

is 1.

8. Reserved ports on PC board

Programming port: convenient to download the site program.

Rs485 port: Open type RS485-RTU protocol port, convenient to extend system function. Such

as, add remote telephone controlling module, heat pump can be controlled by telephone. If

connect RS485 port to computer, heat pump can be controlled by controlling centre of computer.

Part 6. Details of PC board

1. DIP switch

Switch code 1 2 3 4

Off (figure side) 3phase Heating + cooling Air source Hot water

ON 1phase

Only heating Water source Swim pool

Other DIP switch

Heat pump No Switch 5 Switch 6 Switch 7 Switch 8

#1 0FF 0FF 0FF 0FF

#2 0FF 0FF 0FF 0N

#3 0FF 0FF 0N 0FF

#4 0FF 0FF 0N 0N

#5 0FF 0N 0FF 0FF

#6 0FF 0N 0FF 0N

#7 0FF 0N 0N 0FF

#8 0FF 0N 0N 0N

#9 0N 0FF 0FF 0FF

#10 0N 0FF 0FF 0N

#11 0N 0FF 0N 0FF

#12 0N 0FF 0N 0N

#13 0N 0N 0FF 0FF

#14 0N 0N 0FF 0N

#15 0N 0N 0N 0FF

#16 0N 0N 0N 0N

2. Output and input port

No Digital input Digital output Analog input Analog output

1 Water flow

switch

Water tan temperature sensor

Electric

expansion valve 1

2 High pressure

switch 1

3 High pressure

switch 2

Compressor 2 Outlet water temperature sensor

Compressor 1

air heat exchanger lowest tube

temperature sensor 2

Electric expansion valve 2

4 Low pressure

switch 1

Electric heater

air heat exchanger lowest tube

temperature sensor 1

5 Low pressure

switch 2

6 Linkage switch Cool water

7 3phase A Inlet gas temperature sensor 1

8 3phase B Inlet gas temperature sensor 2

9 3phase C Four way valve Ambient temp sensor

10 Water pump Return water temp sensor

11 Compressor 1 current

12 Compressor2 current

Return water valve Outlet gas temperature sensor 1

compensating valve*

Outlet gas temperature sensor 2

Skyline Energy SX-11CCZA, SX15-CCZA, SX-17CCZA, SX-18ZA, SX-19ZA Installation And Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual