Table of Contents
Advertisement
Quick Links
Note: These instructions are designed to be read in conjunction with those for a Medem control panel
which has ventilation interlock, herein referred to as the main panel.
The CM2M-K is a two channel current monitoring devices designed to monitor the power being drawn
by the ventilation and provides the interconnection to the main panel in order to correctly interlock the
ventilation.
It comprises two current monitor circuits A & B and can therefore interlock two separate fans.
The CM2M-K must be installed before any speed controllers or inverters.
Mains rating: 240/440 VAC 50HZ, 24 Amps Maximum Continuous.
When using with a 3phase fan, wire one single phase only through the current monitor.
NOTE: MAINS WIRING AND SIGNAGE MUST BE IN ACCORDANCE WITH CURRENT IEE WIRING REGULATIONS.
The maximum cable length between the CM2M-K and the main panel should not exceed 100 metres, whilst we would always
recommend using screened cable if the distance between the main panel and the detectors is greater than 20metres a 1mm
screened cable must be used on the +VE, 0v terminals
We recommend a six core screened Belden type security cable or 600v rated BMS cable (max cable length of 100meters.)
Warranty will be void if Fire Protection Cable or cable over 1mm dia. is used on the SELV side.
CM2M-K
2 Channel Fan Current Monitor
•
Dual channel current monitor.
•
Coarse and fine sensitivity adjustment
•
Range 30 mAmps to 24 amps
•
Reduces nuisance dropouts
29/11/2017
CM2M-K Features
Advertisement
Table of Contents
Summary of Contents for Medem CM2M-K
- Page 1 NOTE: MAINS WIRING AND SIGNAGE MUST BE IN ACCORDANCE WITH CURRENT IEE WIRING REGULATIONS. The maximum cable length between the CM2M-K and the main panel should not exceed 100 metres, whilst we would always recommend using screened cable if the distance between the main panel and the detectors is greater than 20metres a 1mm screened cable must be used on the +VE, 0v terminals We recommend a six core screened Belden type security cable or 600v rated BMS cable (max cable length of 100meters.)
- Page 2 S1 & E1 . Each CM2M-K can be used to interlock 2 fans (sides A & B), the fans are connected by taking the live feed for each fan through the “Live In and Live Out” terminals (before any speed controllers/inverters), fan load sensitivity range on each fan is 30 milliamps to 24amps.(max).
- Page 3 Mains Wiring: The live supply to one fan speed controller is connected through “one channel” (A or B) of the CM2M-K. The “supply“ is taken in to “Live in” and back out via “Live out” and then connected to the speed controller.
- Page 4 Where a warranty claim is made then, where appropriate, a written order to attend site must be provided to Medem UK A cost for labour and travel to site will be prepared as a quote. The cost must be included in the order.
Need help?
Do you have a question about the CM2M-K and is the answer not in the manual?
Questions and answers