Remote Control PC-Board Set <KRP928B2S, KRP928BA2S>
●Read these Safety Precautions carefully to ensure correct installation.
This manual classifies precautions into WARNING and CAUTION.
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
Be sure to follow all the precautions below ; they are all important for
3.Names of Parts and Electric Wiring
●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.
1.When reading the Operating / error signals, a separate external power source
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.° ° °
Fan operation cannot be selected from the central controller or wired remote controller.
Group control (i.e., control of multiple indoor units with a single remote controller) is
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
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
6.Read Operating / Error Display Signal
Once the switches are set and
the wiring complete, secure the
A cable field supply A cable field supply
In case that the device coping
with HA JEM-A is connected
In case that a central remote
Connecting a Momentary / constant
Reading the Operating / error Display
Series cannot be connected.
The adapter included with the
remote controller is not used.
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
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
Separately sold remote control code (quadplex)
Turn the power on after all the switches have been set.
Settings made while the power is on are invalid.
“Automatic” operation is available from the central controller.
SW3-3 setting What Happens
Open the Kit’s case and set the switches on the circuit board.
(1) For Overseas / Japanese unit setting (SW3-3)
Room air conditioners, different methods are used for setting the temperature in
automatic mode, so this switch needs to be set.
When using a central remote controller, the operating codes can be used to limit
operation from wireless remote controllers.
: permitted; : prohibited×
The Operating / error signals can be read from the contact output (S5).
M1: Turn MR 1 ON when the air conditioner is running.
M2: Turn MR 2 when a communication error has occurred between the KRP928B2S and
the air conditioner, or MR 1 is ON and the unit has stopped after an error.
MR 2 is not turned ON during a warning.
(2) Group number settings (SW1 and SW2-1 to SW2-3)
Set these when using the central controller. (Set to the side.) Do not set more ■
than one unit to the same number.
However, these settings do not need to be made when using the schedule timer
(The settings are needed when used in conjunction with another DCS Series
In this case, the schedule timer performs an auto address after the power is turned
on, so new group numbers are automatically set. Settings made using the switches
(3) Settings when recovering from a power outage (SW2-4)
This selects whether to restart operation when the power comes back on after a
power outage occurred during operation. This setting is given priority in cases
where the indoor unit has an auto start ON / OFF jumper. Note also that
regardless of whether switch SW2-4 is on or off, the operating mode, set
temperature, fan direction and speed settings, and remote control prohibition
NOTE1: Since central equipment and HA JEM-A-compatible equipment both use
last command priority, the contact status and operating status of the air
conditioner might not match sometimes.
Example: If the unit is run from the central controller while the air
conditioner is stopped with an open contact, the contact will be
open and the unit will be running.
NOTE2: Operating mode and fan direction and speed settings can be changed.
(4) Contact input function settings (SW3-1 to SW3-2)
When using contact input (S1), choose one of the following functions.
NOTE also that a separate timer power source is needed when using the
schedule timer independently.
Power source specs: DC 16V, +10%, -15%, 200mA.
Recommended power source: Omron S82J-01015A. (Should be used with the
output voltage adjusted to the center, DC 16V.)
Stops if the unit was stopped before the power outage
and runs if it was running.
Stops after recovering from a power outage
SW2-4 setting What Happens
ON / OFF control is rejected
(operate / stop / timer prohibition)
During a forced stop, all
remote controller actions
Contact - Open to close: air condition stops
(forced stop). Close to open: no change in
Contact - Open to close: air condition runs.
Close to open: air conditioner is stopped
controller permission input
The operating status of the air conditioner
is reversed by an instantaneous input of
What Happens Control mode
No-voltage minute electric current contact
(Minimum applicable load DC 12V, 1mA or lower)
Total wire length max: 100m
Operations from the remote controller
Run / timer
Run / timer
Fan direction
and fan speed
Fan direction
and fan speed
Stop
Stop
Operating mode
temperature
Operating mode
temperaturet
Wireless Remote Controller
HA JEM-A-compatible equipment
Instantaneous contact input
Forced stop contact input
Central Remote Controller
S8 Power supply for relay (DC 12V)
Relay specs (MR1 and MR2)
Coil resistance: 160 10%Ω ±
Operating control panel (Field supply)
Connection harness (about 1.6m)
The remote controller permission / prohibition settings using the Ve-up controller are as
™ : permitted; : prohibited×
Operations from the remote controllerVe-up controller settings
Room air conditioner indoor unit
Cable available field supply
(See the installation manual of
the central remote controller)
Operation when recovering
Service monitor (LED1: green)
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
Momentary contact / constant contact
Central controller equipment
“Automatic” operation is not available from the central controller.
When using “automatic” operation using the wireless remote
controller, the central controller displays automatic cooling
(heating) and 25 C. Even if the temperature is changed, it will °
return to 25 C after a while.°
Central Remote Controller
Schedule timer
D-BIPS
Forced stop contact input
Constant contact input
Instantaneous contact input
HA JEM-A-compatible equipment
Wired Remote Controller
Wireless Remote Controller
The central controller can be combined with the following devices.
*Onlyduringtimeroperation
3P157704-1B,2B 2006.11.09 02:11 PM ページ2
