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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.
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Summary of Contents for CDL VN-M Series
- Page 1 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.
- Page 2 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...
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Page 3: Installation
Installation. Duct connections 150 = 100mm 250 = 150mm 350 = 150mm 500 = 200mm 650 = 200mm 800 = 250mm Duct connections 150 = 100mm 250 = 150mm 350 = 150mm 500 = 200mm 650 = 200mm 800 = 250mm 1000 = 250mm VN-M 1500 and 2000HE1 Duct connections... - Page 4 Wiring. Standard. 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 position,...
- Page 5 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.
- Page 6 VN-M units’ default to system number 31, this cannot be adjusted Examples 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 –...
- Page 7 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.
- Page 8 Control options and the functions associated with them. RBC-NRC01HE – Standard VNM remote controller, available functions; 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.
- Page 9 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.
- Page 10 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;...
- Page 11 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.
- Page 12 Wiring. THE HEATER CONTROLLER AND THE HEAT EXCHANGE UNIT MUST BE SUPPLIED FROM THE SAME PHASE AND SUPPLY For full technical details please refer to the relevant manuals available for this product. 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.
- Page 13 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.
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Page 14: Advanced Functions
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. - Page 15 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”...
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Page 16: Contact Details
Contact details: Cool Designs Ltd Technical Support 07590 775510 / 07706 293028 Monday – Friday 07.30 to 19.30 Email: support@cooldesignsltd.co.uk 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.