Description
PRE-PROGRAMMED STAIRWELL PRESSURE CONTROL SYSTEM c/w 9 DIFFERENTIAL PRESSURE SENSORS (4 FOR EACH STAIRWELL & 1 FOR RELIEF FAN CONTROL)
ADD or SUBTRACT $146 for more or fewer differential QBM2030 pressure sensors each (TRADE)
Meeting fire mode pressure & velocity requirements for both the stairwell & lobbies is often difficult to achieve, Hevac has further advanced our tried and proven program settings for stairwell pressure control by adding an automatic setpoint shift algorithm to greatly aid in satisfying the vastly different pressure requirements for stairwell doors open & closed and is giving great results on systems that otherwise couldn’t pass both the door velocity & door resistance pull tests, nobody else to our knowledge has come up with this innovation, so if you’ve ever experienced the frustration of trying to pass stairwell pressure & velocity tests don’t do the cheap method of connecting sensors straight to a VSD, not only is that going to prove difficult to test and trim at commissioning & years to come but gives poor control capability compared to a RLU2.. series controller using this automatic setpoint shift method.
1 x RLU222 DUAL LOOP PRE PROGRAMMED AS STAIRWELL PRESSURE CONTROLLER
1 x RLU220 SINGLE LOOP CONTROLLER PRE PROGRAMMED AS RELIEF FAN PRESSURE CONTROLLER
2 x SEZ220 (up to 5 inputs) SENSOR SIGNAL SELECTOR, CAN BE SET AS LOW SELECT, HI SELECT OR AVERAGE SELECT. (1 per stairwell)
9 X QBM2030-1U DIFFERENTIAL PRESSURE SENSORS (4 FOR EACH STAIRWELL & 1 IN COMMON RELIEF DUCT)
AS WEVE GONE TO THE EFFORT TO COME UP WITH A TRIED & PROVEN BEST CONTROL SYSTEM POSSIBLE WE’D ALSO GREATLY APPRECIATE YOU BUYING THE DAMPER MOTORS FROM US AS WELL WHICH ONLY SEEMS FAIR TO US.
SPRING RETURN 24V DAMPER MOTORS
GQD121.1A 2NM S/R (>0.3SQM) DAMPER MOTOR $ 157.85 (TRADE PRICE) + GST
GPC121.1A 4NM S/R (>0.6SQM) DAMPER MOTOR $169.40 (TRADE PRICE) + GST
GMA121.1E 7NM S/R (>1.5SQM) DAMPER MOTOR $215.60 (TRADE PRICE) +GST
GCA121.1E 18NM S/R (>3SQM) DAMPER MOTOR $304.15 (TRADE PRICE) +GST
FOR PROJECT QUOTES CONTACT OUR ESTIMATOR SHAUN BARRY ON sbarry@hevac.com.au
NOTE : HEVAC WILL ONLY SUPPLY PRE-PROGRAMMED RLU’s AS PART OF A COMPLETE STAIRWELL CONTROL SYSTEM
