Danfoss MCX08M User Manual

DKRCC.PS.RI.A1.02 / 520H4358 - Air Handling Seq. user manual - V 2.2
Produced by Danfoss Electronics spa Graphic Department, 10-2009
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Danfoss Electronics spa
Air Handling seq. - user manual
4.4.2| Variable step switch
If b11, b41, b71 = VAR STEP, coil is step controlled in a variable way.
When variable step switch is selected, you have to set the number of steps (1..3) for each coil and for each step (of
each coil) the ON and OFF switching point in % of the load demand
VARIABILE STEP SWITCH
COI Coils Min Max Default U.M. Text value
CL1 Coil 1
b12 Number of steps 0 3 2
b17 Step 1 ON 0 1000 10,0 %
b18 Step 1 OFF 0 1000 20,0 %
b19 Step 2 ON 0 1000 40,0 %
b20 Step 2 OFF 0 1000 30,0 %
b21 Step 3 ON 0 1000 50,0 %
b22 Step 3 OFF 0 1000 100,0 %
CL2 Coil 2
b42 Number of steps 0 3 2
b47 Step 1 ON 0 1000 10,0 %
b48 Step 1 OFF 0 1000 0,0 %
b49 Step 2 ON 0 1000 10,0 %
b50 Step 2 OFF 0 1000 30,0 %
b51 Step 3 ON 0 1000 50,0 %
b52 Step 3 OFF 0 1000 33,0 %
CL3 Coil 3
b72 Number of steps 0 3 2
b77 Step 1 ON 0 1000 17,0 %
b78 Step 1 OFF 0 1000 0,0 %
b79 Step 2 ON 0 1000 33,0 %
b80 Step 2 OFF 0 1000 17,0 %
b81 Step 3 ON 0 1000 50,0 %
b82 Step 3 OFF 0 1000 33,0 %
Tab 15_ [Coils control - Variable step switch]

Danfoss MCX08M Specifications

General

Brand	Danfoss
Model	MCX08M
Category	Controller
Language	English