AUTOFLAME Mk8 MM Installation And Commissioning Guide

5 Bottom Blowdown
Page 84 Mk8 MM Expansion Features Installation and Set-Up Guide 04.09.2016
5 BOTTOM BLOWDOWN
5.1 Overview
Bottom blowdown is used to remove solids which build up at the bottom of steam boilers. In the
Autoflame system, there are options to either manage the blowdowns through automatic timings, or to
manually trigger them. The programmable electronic automatic blowdown ensures repeatable
blowdown timings, without the need of a compressed air supply. A pulsed bottom blowdown is used to
disturb settled solids at the bottom of the boiler, making the evacuation effect more efficient. The
timings and intervals of the bottom blowdowns are user configurable. The benefits of the Autoflame
bottom blowdown system include:
 Full stainless steel valve construction
 24V DC Autoflame Unic 5 servomotor for control and repeatability
 Electronic proof of open/close end switches
 Lithium ion battery technology ensures guaranteed closure on power failure
 Total electronic operation – no compressed air supply
 Timed blowdown with manual/automatic operation
 Bottom blowdown sequence logging
 Up to 10 timed blowdowns over a 24 hour period
 Repeatable up to 10 times from 1 to 60 seconds for each blowdown
 ‘Parked’ position to reduce valve opening time
 Quick servomotor disconnect facility for manual actuation
 Rotary operation ensures water tight shutoff
 Sealing design concept ensures no leaks
To activate bottom blowdown on the Mk8 MM, the Bottom Blowdown expansion software feature must
be unlocked. The activation code for the serial number of the MM will need to be purchased using part
number MK8004, and uploaded to the unit via Download Manager software.
Please see Autoflame PC Software Guide for more information on unlocking expansion features on the
Mk8 MM using Download Manager software.

AUTOFLAME Mk8 MM Specifications

General

Brand	AUTOFLAME
Model	Mk8 MM
Category	Controller
Language	English