KONNEN RF8I/bd User manual

Installation manual
DC INVERTER AIR TO WATER
HEAT PUMP
MONOBLOCK TYPE
Please read this manual carefully before using this product and keep it for
your reference.

1
DC INVERTER AIR TO WATER
HEAT PUMP
Product parameters & installation instructions
RF8I/bd
RF12I/bd
RF16I/bd

2
Table of Contents
Description.................................................................................. ............................................1
Basic information ....................................................................................................................1
Items in the product packaging box .........................................................................................1
Tools required to install the unit............................................................................................ .3
Safety instructions.................................................................................................................. 3
Caveat.....................................................................................................................................4
Note........................................................................................................................................5
Materials needed....................................................................................................................6
Equipment installation diagram...............................................................................................7
Equipment Overview....................................................................... ...................................... 8
RF8I/bd overall size.......................................................................................... ......................8
RF8I/bd machine internal dimensions.....................................................................................8
RF12I/bd /RF16I/bd external unit dimensions.........................................................................9
RF12I/bd /RF16I/bd external machine internal dimensions.....................................................9
Overall machine electrical wiring diagram..............................................................................12
RF8I/bd wiring diagram..........................................................................................................11
RF12I/bd wiring diagram....................................................................... ................................12
RF16I/bd wiring diagram........................................................................................................13
Field wiring............................................................................................................................14
Plumbing Engineering ............................................................................................................15
Overall machine installation instructions............................................................................... 16
Precautions for selecting the installation location...................................................................16
Installation space ...................................................................................................................17
Install the whole machine.......................................................................................................17
Injecting refrigerant ...............................................................................................................17
Pre-operation check .............................................................................................................. 18
Check before opening.............................................................................................................18
Display interface operation instructions..................................................................................19
Appendix.................................................................................................................................23
Failure and protection.............................................................................................................23
Operating parameter list ........................................................................................................26
Warranty Card........................................................................................................................28

3
Please read the instructions carefully before installation, please do not discard.Please
save the manual for future reference.
Make sure it is installed by a professional before running the unit. If in doubt, please
contact your dealer for advice and information.
If the unit is not used for a long time, it is recommended not to turn off the power; if the
power is turned off, the product protection device (such as the pump anti-lock function
and antifreeze device) will not be available.
Basic information
The air source heat pump main unit is recommended to be installed in a well ventilated
area. The unit can be connected to the fan coil, underground heating equipment, low
temperature radiator and other end connections.
A backup heater is built into the system to assist in heating at low temperatures. The
backup heater can also be used as a backup heating when the external unit fails.
Items in the product packaging box
Before installation, please make sure that all items are in the carton.
Carton of Monoblock heat pump
Items
Picture
Qty.
Instruction manual
1
HEAT PUMP
RF8I/bd
1

4
HEAT PUMP
RF12I/bd
RF16I/bd
1

5
Tools required to install the unit
1. Impact drill
2. Level
3. Water pipe bending equipment
4. Tape measure
5. Torque wrench
6. Pipe cutting machine
7. Sleeve group
8. Screwdriver
9. Wire stripper
10. Bow saw
11. Corresponding rule hole opener
12. Adjustable wrench
13. Protective equipment such as gloves and glasses
Safety instructions
To prevent injury to users and others, or property damage, be sure to follow the
instructions below. Incorrect operation may result in injury or damage.
Please install the unit in compliance with local laws, regulations and standards; check
the voltage and frequency; the unit is only used for grounding sockets, and the unit must
have independent switches.
The following security defenses need to be considered:
- Please read the following warnings before installation.
- Be sure to check the details that need attention, including security issues.
- After reading the installation instructions, be sure to save them for future reference.

6
Caveat
Ensure that the unit is installed safely and reliably.
If the unit is not secure or not installed, it will cause damage. The minimum required
support weight is 20g/mm2. When installing the machine in a closed area or limited space,
please consider the size of the room and the ventilation to prevent suffocation caused by
refrigerant leakage.
Use a specific wire and secure it to the terminal block (this connection prevents the
wire from being applied to the part).
Wiring errors can cause fire.
Please connect the power cord in strict accordance with the wiring diagram on the
manual to avoid causing burnout of the equipment or fire.
When installing, be sure to use the correct or specific materials.
Failure to use parts or materials may result in fire, electric shock, or falling of the
machine, resulting in injury.
Safety grounding installation, please read the installation instructions.
Improper installation may result in fire, electric shock, falling of the machine, or water
leaking, resulting in injury.
Electrical work according to the installation manual, be sure to use professional
tools.
If the power supply capacity is insufficient or the circuit is incomplete, it may cause
fire or electric shock.
The unit must have a grounding device.
If the power supply does not have a grounding device, be sure not to connect the
machine.
Non-professional installers, please do not attempt to move or repair the machine.
Unreasonable movement or maintenance of the unit may cause water leakage,
electric shock, or fire, resulting in injury. Need to repair or maintain the machine, please find
a professional technician.
Do not unplug or plug in the power during operation.
It may cause fire or electric shock.
Do not touch or operate the machine when the hands are wet.
It may cause fire or electric shock.
Do not place heaters or other electrical appliances near the power cord.
It may cause fire or electric shock.
Please note that water cannot be poured directly from the machine. Do not allow
water to enter the electrical components.
It may cause fire or electric shock.

7
Note
Do not install the unit in a location where there may be flammable gas leaks.
If there is a flammable gas leak and gathers around the unit, it will cause an
explosion.
Drainage systems and piping work are carried out according to the instructions.
If the drainage system or piping is defective, water leakage will occur and should
be disposed of immediately to avoid other household products getting wet and
damaged.
Do not clean the unit when the power is on.
When cleaning the machine, turn off the power. Failure to do so may result in
injury from a high speed fan or electric shock.
Do not continue to run the unit when there is a problem with the unit or if there is a
smell. Please turn off the power and stop running the unit. Doing so may cause
electric shock or fire.
Please be careful when the product is not packed or when it is installed.
Sharp edges can cut people, paying special attention to the edges and fins of the
heat exchanger.
After installation or after repair, please check if the refrigerant or refrigerant will
leak.
If the refrigerant is not enough, the unit will not work properly.
The installation of the external unit must be flat and firm
Avoid abnormal vibration and noise
Do not put your fingers into the fan and evaporator. High-speed fan can cause
serious injury
This device is not designed for people who are physically or mentally weak
(including children) and who do not have experience and who do not understand the
heating system. Unless it is used under the direction and supervision of the
responsible person, or has received training on the use of this equipment. Children
should be used under the supervision of an adult to ensure that they use the device
safely.
If the power cord is damaged, it must be replaced by the manufacturer or its
service agent, or the same professional, to avoid danger.

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Materials needed
Monoblock type heat pump power line: three-core insulated wire; 9KW with ≥6mm2 three-
core insulated wire; 15KW and 18KW with ≥10mm2 three-core insulated wire
When wiring it requires isolation device
Low voltage cable: 0.75mm shielded twisted pair
Note: All control wires must be installed 300mm away from the main wire.
Inlet and outlet pipe requirements (internal thread)
RF8I/bd 3/4”
RF12I/bd 1”
RF16I/bd 1”
Heating operation range
Working Condition
Outdoor temp.
Water temp.
Dry bulb ℃
Wet bulb ℃
Water
inlet ℃
Heating
Max.
43
/
55
Min.
-30
/
10

9
Equipment installation diagram
Note
1. In the winter heating season, the unit is strictly forbidden to power off to
ensure the normal operation of the unit's antifreeze function.
2. When the unit is not in use for a long time, please drain the water from the
system.
3. If the unit is not used after being used for a long time, please disassemble the
special exhaust port of the pump first, and use a screwdriver to check whether the
pump rotor can run normally. If it cannot be rotated normally or the rotation is
blocked and the rotation is not smooth, you can use a screwdriver. Rotate a few more
turns until the rotor is running freely. If you have any questions, please call the after-
sales service.