CDL VN-M Series User manual

Cool Designs Ltd makes every effort to ensure that the information provided within this publication is correct and error free, however we cannot guarantee that it is free of inaccuracies, errors or
omissions. Users should seek to clarify this information for themselves prior to basing any decisions upon such information.
Pocket Quick
Reference Guide
On the TOSHIBA
Air to Air Heat Exchanger
VN-M####HE/HE1

Cool Designs Ltd makes every effort to ensure that the information provided within this publication is correct and error free, however we cannot guarantee that it is free of inaccuracies,
errors or omissions. Users should seek to clarify this information for themselves prior to basing any decisions upon such information.
Toshiba air conditioning
Air to Air Heat Exchangers the VN-M series.
This guide shows the general set-up procedures for the unit, associated controls and accessories.
Toshiba VN-M units are equipped with the TCC link controls logic, which allows the equipment to be
controlled by a number of Toshiba control options currently available, i.e., standard control, one unit
one remote via either the NRC-01HE, (dedicated remote for the air to air range), or via the
RBC-AMS41-E (ON / OFF function and Schedule Timer ONLY) remote controller.
Units can be group controlled either specifically air to air, up to 8 units within a group, or air to air
units can be incorporated into an air conditioning group.
The units can also be controlled via any of the Central control or BMS options.
In short all the options available for standard Toshiba air conditioning equipment are also
available for air to air products.
The range covers three variants.
1) Standard air to air units with an Air Volume range from 150 m3/hr to 2000 m3/hr
9 products in total.
2) Air to Air with DX-Coil covering Fresh Air Loads of 4.10, 6.56 and 8.25 kW Cooling duty
and Air Volumes of 500 m3/hr, 800 m3/hr and 950 m3/hr
3) Air to Air with DX-Coil and Humidifier, Fresh Air Loads of 4.10, 6.56 and 8.25kW Cooling
duty, air volumes of 500 m3/hr, 800 m3/hr and 950 m3/hr, plus a Permeable Film
Humidifier of 3, 5 and 6 kg/hr.
4) Dedicated remote controller, RBC-NRC01HE.
5) Ancillary Pre-Heaters #kW, ##kW, ###kW (RBC-VNMH1, 2, 3, 4.)
6) Pre-Heater Control. (RBC-VNMC).
7) Remote Interface (RBC-VNL1).

Cool Designs Ltd makes every effort to ensure that the information provided within this publication is correct and error free, however we cannot guarantee that it is free of inaccuracies, errors or
omissions. Users should seek to clarify this information for themselves prior to basing any decisions upon such information.
Installation.
Duct connections
150 = 100mm
250 = 150mm
350 = 150mm
500 = 200mm
650 = 200mm
800 = 250mm
1000 = 250mm
NOTE:
Duct connections
Outdoor side
283 x 730mm
Duct connections
Indoor side
250mm
Duct connections
150 = 100mm
250 = 150mm
350 = 150mm
500 = 200mm
650 = 200mm
800 = 250mm
Installation
VN
-
M 1500 and 2000HE1

Cool Designs Ltd makes every effort to ensure that the information provided within this publication is correct and error free, however we cannot guarantee that it is free of inaccuracies,
errors or omissions. Users should seek to clarify this information for themselves prior to basing any decisions upon such information.
Wiring.
Standard.
Group Configuration.
A 10-amp, 230-volt power supply is applied to
terminals L, N & E (Without heater kit.)
Local controllers are connected to terminals A & B
Central controllers / BMS gateways are connected to
terminals U3 & U4
When being used as an Individual unit, “bit” switch
SW703 bit 4 must be turned to the ON position,
factory default is OFF. * HE models ONLY*
Slightly different set-up for the HE1 models.
When being used as an individual unit, “Link CN71”
must be “Unplugged” from the PCB.
Factory default is link plugged in.
Up to 8 units can be group
controlled.
Using a 2-core 0.5mm cable
Connected to terminals A & B at
each unit within the group.

Cool Designs Ltd makes every effort to ensure that the information provided within this publication is correct and error free, however we cannot guarantee that it is free of inaccuracies, errors or
omissions. Users should seek to clarify this information for themselves prior to basing any decisions upon such information.
Electrical “Dip Switches” and their purpose HE Models
There are 4 “Banks of “Dip Switches. Two banks of two
and two banks of four.
SW301 - “Terminal – End of Line” resister. ON = 100Ω.
OFF = None
SW701 – Pulse/Static ON = Pulse. OFF = Static.
SW702 – (1 to 4) Indoor unit address. (See chart)
SW703 – (1 to 2) Indoor unit address.
(Factory default ALL OFF indoor address No 1.)
(3) Central controller address. ON = Fix, OFF = Auto
(Leave value OFF)
(4) ON = Header (Individual) OFF = Follower
(Factory default follower)
A “group” can comprise of up to 8
units of any combination, RAV, VRF,
VN-M indoor units.
Wiring is the same as above.
When a “group” is controlled via
two remote controllers, the
quantity of units drops to a
maximum of 7.
Wiring is the same as above.
Electrical Dip Switches

Cool Designs Ltd makes every effort to ensure that the information provided within this publication is correct and error free, however we cannot guarantee that it is free of inaccuracies,
errors or omissions. Users should seek to clarify this information for themselves prior to basing any decisions upon such information.
VN-M units’ default to system number 31, this cannot be adjusted
Examples
Multiple units within a group.
Single VN-M unit with local remote.
SW301 – (1 & 2) = OFF
SW701 – (1 & 2) = OFF
SW702 – (1 to 4) = OFF
SW703 – (1 to 2) = OFF
SW703 – (3) = OFF
SW703 – (4) = ON
Controller would display.
1 – 1, 31 – 2, 1 – 3, 31 – 4, 1 – 5
Red = System (i.e. Outdoor unit), Black indoor address,
(Note: VNM units are locked to system address 31)

Cool Designs Ltd makes every effort to ensure that the information provided within this publication is correct and error free, however we cannot guarantee that it is free of inaccuracies, errors or
omissions. Users should seek to clarify this information for themselves prior to basing any decisions upon such information.
HE1 Models VN-M1000/1500/2000HE1.
HE1 models do not have the same “Dip Switches”, configuration is very similar to
standard Toshiba split systems.
On the “Header Unit” the “CN71” link needs removing.
The “CN71” link remains in position on follower units.
Configuration is generally automatic, with “CN71” link removed on the header, apply
power to the units within the “Group”, addressing will be carried out automatically.
If manual addressing is required.
Using the RBC-NRC01HE remote controller, with power on.
Press and HOLD, for 4 seconds; “TEST, SET and CL”.
The controller will display “10” on the right-hand display.
Using the Temp up/down buttons, scroll 10 to 13.
Change the left-hand display using the “Time” Up/down buttons
Selecting a unique number between 1 (Header) – 64 (Follower),
Groups can comprise of up to 8 units.
Press “SET” then Press “TEST”
When you press the “Unit” button the middle window will
Display, the system number, always fixed at 31, and the indoor
unit number between 1 to 64, pressing the “Unit” button again
will display the next unit in the group, 31 – 2 etc.
Control Options

Cool Designs Ltd makes every effort to ensure that the information provided within this publication is correct and error free, however we cannot guarantee that it is free of inaccuracies,
errors or omissions. Users should seek to clarify this information for themselves prior to basing any decisions upon such information.
Control options and the functions associated with them.
RBC-NRC01HE – Standard VNM remote controller, available functions;
RBC-AMS41E – Enhanced remote, when used with VNM units
the following functions are available;
The following remote controllers are not suitable for connecting on a “One to One” basis.
ON / OFF
Fan Speed (High – Low)
Ventilation mode,
(Automatic, Heat Exchanger, Bypass.)
Timer (OFF, Repeat OFF, ON timer, 168 hours in ½ hr increments NOT clock based
NO day omit available. “Sleep Timer”)
This controller can also be used to control standard air conditioning units along with VNM units either singular or within a group of
units, remaining functions are available for standard air conditioning units, were applicable.
ON / OFF
Scheduled Timer (7 Day Time Switch)
Clock based, with day omit.
RBC
-
AMS51/54/55 RBC
-
AMT32 RBC
-
AS21/41 Infra
-
Red

Cool Designs Ltd makes every effort to ensure that the information provided within this publication is correct and error free, however we cannot guarantee that it is free of inaccuracies, errors or
omissions. Users should seek to clarify this information for themselves prior to basing any decisions upon such information.
Accessories.
RBC-VML1 VN-M Unit Interface Lead
The lead will allow the VN-M unit to be controlled from volt free contact closures. Separate contacts are required
for on/off, remote controller lock, increased fan speed and damper position.
Installation
The interface lead must be plugged into the;
A) For the HE models CN705 connector on the main PCB.
B) For the HE1 model CN61 on the “Control PCB – A”.
If the lead is used with a remote controller it will operate in last one touched mode. If the VN-M units are grouped
the lead can be connected to any VN-M unit in the group. Please see Installation manual supplied with the VN-M
unit for details.
When connected to the HE models, VN-M150, 250, 350, 500, 650 & 800HE
Remove the screws to expose the PCB pass the Interface cable from the Electrical box out through the provided
bushes. Connect the ring crimp terminal to the provided earth screw inside the electrical box.
Ensure the VN-M unit is set to static input SW701 bit Sw1 OFF (This is set at unit shipment from the factory).
The links between the common (Green Cable) and the selected input are to be connected to a volt free contact.
Accessories

Cool Designs Ltd makes every effort to ensure that the information provided within this publication is correct and error free, however we cannot guarantee that it is free of inaccuracies,
errors or omissions. Users should seek to clarify this information for themselves prior to basing any decisions upon such information.
When connected to the HE1 models, VN-M1000, 1500 & 2000HE1
This must be connected to the CN61 socket on “Control PCB – A, (MCC-1643), there are two “Control PCB’s the A
board has the temperature sensors connected to it.
The functionality of the VML1 interface is slightly different when used on the HE1 models.
The functions available are;
Note: The jumper lead on the “Control PCB – A” requires cutting.

Cool Designs Ltd makes every effort to ensure that the information provided within this publication is correct and error free, however we cannot guarantee that it is free of inaccuracies, errors or
omissions. Users should seek to clarify this information for themselves prior to basing any decisions upon such information.
Pre-Heater ONLY.
There are four options available
Currently there are NO Pre-Heater kits available for the VN-M1500HE1 or the VN-M2000HE1 units.
Each heater option requires a controller (RBC-VNMC).
The heater will only operate when the temperature
of the air in the duct is below the pre-set value.
The controller will also provide a run on when the unit stops
The controller is class 1 and MUST be earthed.
General Layout.
For 2kW heaters link L1-L2 (Live) and N1-N2 (Neutral)
For 1kW heaters connect to L1 (Live) and N1 (Neutral)
Pre
-
Heaters

Cool Designs Ltd makes every effort to ensure that the information provided within this publication is correct and error free, however we cannot guarantee that it is free of inaccuracies,
errors or omissions. Users should seek to clarify this information for themselves prior to basing any decisions upon such information.
Wiring.
For full technical details please refer to the relevant manuals available for this product.
THE HEATER CONTROLLER AND THE HEAT EXCHANGE UNIT MUST BE SUPPLIED
FROM THE SAME PHASE AND SUPPLY

Cool Designs Ltd makes every effort to ensure that the information provided within this publication is correct and error free, however we cannot guarantee that it is free of inaccuracies, errors or
omissions. Users should seek to clarify this information for themselves prior to basing any decisions upon such information.
Time Switch Control
There are a number of options available for time switch control.
Option 1) TCB-EXS21TLE 7-day weekly / schedule timer complete with day omit, used in conjunction
with the RBC-NRC01HE remote controller.
Option 2) RBC-SMT1 timer interface lead, connects in the rear of the RBC-NRC01HE via the CN02
connector and provides an external volt free switching circuit, for connection to a third-party timer.
Option 3) RBC-VML1 VN Unit Interface Lead, electrical details available within this publication.
Field supplied
Time switch
CN705
RBC-VML1 VN
Time Switch Control

Cool Designs Ltd makes every effort to ensure that the information provided within this publication is correct and error free, however we cannot guarantee that it is free of inaccuracies,
errors or omissions. Users should seek to clarify this information for themselves prior to basing any decisions upon such information.
Advanced Functions
There are a number of advanced facility / functions which are available, configuration of these
facilities/functions is carried out via the RBC-NRC01 local remote controller.
The facilities/functions available are;

Cool Designs Ltd makes every effort to ensure that the information provided within this publication is correct and error free, however we cannot guarantee that it is free of inaccuracies, errors or
omissions. Users should seek to clarify this information for themselves prior to basing any decisions upon such information.
How to access the advanced facilities/functions, via an RBC-NRC01 remote controller.
1) Press “TEST” and the “TEMP - DOWN “button
together and hold for 4 seconds.
After a short delay the display will show
“01” on the right-hand side.
2) Using the “TEMP UP/DOWN” buttons scroll
through to the code you require, this will be displayed
on the right-hand side of the display.
3) If you wish to change the “Data – Displayed on the
left-hand side of the display” use the
“TIME – UP/DOWN” buttons.
4) Once you have the required data on the left-hand
display, Press “SET”.
5) If there are a number of units controlled via the same
controller and you wish to change their “Data” then
press the “UNIT” button, the middle window will
change and the new indoor unit’s reference will be
displayed, (31-1 to 31-2 etc.) repeat step 3 above.
6) If you wish to change additional “Codes”
Repeat steps 2 to 4 above.
7) Once all the required “Codes” have been set
then press “TEST”, this will lock in the new data.
8) The controllers display will show “Setting”
flashing, then the display will clear and the system
enters normal operation mode.
01
28
31-1
0000
28
31-2
0001
Advanced Functions

Cool Designs Ltd makes every effort to ensure that the information provided within this publication is correct and error free, however we cannot guarantee that it is free of inaccuracies,
errors or omissions. Users should seek to clarify this information for themselves prior to basing any decisions upon such information.
Contact details:
Cool Designs Ltd Technical Support
07590 775510 / 07706 293028
Monday – Friday 07.30 to 19.30
Email: [email protected]
Web site: www.cdlweb.info
Toshiba Air Conditioning
24/7 technical support
0870 843 0333 (Option 7)
Text back service
07624 803 017
(Type fault code in lower case no spaces)
Try our on-line training videos on YouTube.
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