Daikin Quaternity H-Series, Engineeiring Data

Optional Accessories

EDUS04-906_b

76

Room Air Conditioners H-Series

13.2.2 KRP928B2S

Safety Precautions



Read these Safety Precautions carefully to ensure correct installation.

This manual classifies precautions into WARNING and CAUTION.

WARNING : 

Failure to follow WARNING is very likely to result in such grave 

consequences as death or serious injury.

CAUTION  :  

Failure to follow CAUTION may result in serious injury or 

property damage, and in certain circumstances, may result in 

a grave consequence.

Be sure to follow all the precautions below ; they are all important for 
ensuring safety.

3.Names of Parts and Electric Wiring

WARNING

CAUTION



After installation is complete, test the operation of the PCB set to check 

for problems, and explain how to use the set to the end-user.

1.Overview, Features and Compatible Models

This kit is the interface required when connecting the central controller and a Daikin Room Air 
Conditioner. Use of the central controller makes it possible to perform the following monitoring 
and operations. It is compatible with room air conditioners which have an HA connector S21.

Precaution
1.When reading the Operating / error signals, a separate external power source 

(DC 12V) is needed.

2.A separate timer power source (DC 16V) is needed when using the schedule 

timer independently, and not in conjunction with other central controllers.

3.The range of temperatures that can be set from the central controller is 18

°

C to 

32

°

C in cooling and 14

°

C to 28

°

C in heating.

4.Fan operation cannot be selected from the central controller or wired remote controller.
5.Group control (i.e., control of multiple indoor units with a single remote controller) is 

not available.

6.Monitoring is not available of the thermo status, compressor operating status, 

indoor fan operating status, electric heater, or humidifier operating status.

7.Forced thermo off, filter sign display and reset, fan direction and speed settings, 

air conditioning fee management, energy savings instructions, low-noise 
instructions, and demand instructions cannot be made.

1.Run / stop for the central controller and wired remote controller, operating mode 

selection, and temperature can be set.

2.The operating status, any errors, and the content of those errors can be monitored 

from the central controller and wired remote controller.

3.Run / stop for the central controller and wireless remote controller, operating mode 

selection, and the temperature setting can be limited by the central controller.

4.Zone control can be performed from the central controller.
5.The unit can remember the operating status of the air conditioner before a power 

outage and then start operating in the same status when the power comes back 
on.

6.Card keys, operating control panels, and other constant / instantaneous 

connection-compatible equipment can be connected.

7.The Operating / error signals can be read.
8.HA JEM-A-compatible equipment can be connected.
9.The indoor temperature can be monitored from the Ve-up controller.

2.Component Parts and Separately-Sold Parts which are Required

This kit includes the following components. Check to ensure that none of 
these are missing.

1 2 3 4

1 2 3 4

1234

1

0

ON

OFF

ON

OFF

SW1

S16

S19

S6

F1

SW2

SW3

LED1

Tes1

S1

S8

S5

F2

Once the switches are set and 
the wiring complete, secure the 
case using the included 
screws.

A cable field supply

A cable field supply

In case that the device coping 

with HA JEM-A is connected

Connecting a Wired 

Remote Controller

In case that a central remote 

controller is connected

Connecting a Momentary / constant 

Contact Input Equipment

Reading the Operating / error Display



Tele-con (Field supply)



Remote controller

BRC944

Series



Card key

(Field supply)



Operating control panel

(Field supply)

KRC65, KRC72, 
KDC100A10, and KDC101B 
Series cannot be connected.

The adapter included with the 
remote controller is not used.

DAIKIN

<Wiring procedure>

Supplied connection harness



Installation should be left to the dealer or another qualified professional.

Improper installation by yourself may cause malfunction, electrical shock, or fire.



Install the set according to the instructions given in this manual.

Incomplete or improper installation may cause malfunction, electrical shock, or fire.



Be sure to use the standard attachments or the genuine parts.

Use of other parts may cause malfunction, electrical shock, or fire.



Disconnect power to the connected equipment before starting installation.

Failure to do so may cause malfunction, electrical shock, or fire.



An earth leakage circuit breaker should be installed.

If the breaker is not installed, electrical shock may occur.



Do not install the set in a location where there is danger of exposure to 

inflammable gas.

Gas accumulated around the unit at the worst may cause fire.



To prevent damage due to electrostatic discharge, touch your hand to a 

nearby metal object (doorknob, aluminum sash, etc.) to discharge static 
electricity from your body before touching this kit.

Static electricity can damage this kit.



Lay this cable separately from other power cables to avoid external 

electrical noises.

Screw cover

Non polarity

Included in the Drain 

Up Kit.

Separately sold remote control code (quadplex)

KRCW101A Series



Operating monitoring 
equipment

(Field supply)

Parts

Kit assy
PCB is in the housing.

Q’ty

Q’ty

1

Parts

Connection harness (about 1.6m)

Mounting screws

Binding band

Installation manual

1

set

3

pcs.

1

pc.

1

set

Room air conditioner indoor unit

To HA connector (S21)

Cable available field supply 
(See the installation manual of 
 the central remote controller)

Lower group number 
switch (SW1)

Upper group number 
switch (SW2-1to 3)

Operation when recovering 
from a power outage 

mode

switch (SW2-4)

Service monitor (LED1: green)

When the CPU is working 
properly, the LED flashes.

Power supply terminal (S8)

Connect an external DC 12V power 
supply only when reading the 
Operating / error display.

Japanese unit / Overseas unit
Setting switch (SW3-3)

Momentary contact / constant contact
Selection switch (SW3-2)

Forced stop
Settings switch (SW3-1)

Central controller equipment



DCS302

Series



DCS301

Series



DCS601

Series



DST301

Series