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Mk8 MM
AUTOFLAME Mk8 MM User Manual
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10 Water
Level
Control
Mk8 MM Ma
nual
Page
|
189
Figure 10
.
9.3.ii St
ore of
End of Prob
e Leve
l
Cnce the des
ired
end of pr
obe leve
l is reac
hed, clos
e the f
eedwater v
alve a
nd turn the
pump o
ff.
Allow so
me time for
the re
adings
to settle
and the
n pres
s
to s
tore th
ese rea
dings.
Once the
level has
been e
ntered,
it is pos
sible to
updat
e the co
mmissione
d read
ings by
adjusti
ng the wat
er
level an
d pressin
g
.
188
190
Table of Contents
Default Chapter
4
Table of Contents
4
1 Mk8 MM Overview, Specifications and Wiring
13
Mk8 MM Overview
13
Mk8 MM Main Features
14
Overview of Micro-Modulation (MM)
15
Fixing Holes and Dimensions
16
Wiring Schematic
17
Main Board
17
Expansion Board
18
Fuse Ratings
19
Electrical Specifications
20
MM Inputs and Outputs
20
Expansion Board Inputs and Outputs
21
Cable Specifications
22
MM Terminals Description
23
Expansion Board Terminals Description
26
Connection between Mk8 MM and Mk8 EGA EVO
29
Connection between Mk8 MM and Mk8 DTI
30
Sequencing Connection Diagram
31
Standards
32
2 Options and Parameters
33
Options
33
Parameters
57
3 Commissioning Procedure
67
Overview
67
Installation Checks
68
Commissioning Checks
68
Operational Checks
68
Installation Precautions
68
Maintenance and Servicing
68
Servomotors
69
Adjusting the Servomotor Potentiometer
69
Servomotor Feedback Voltage
70
Servomotors - Direction Change
70
Servomotors with Autoflame Valves
71
Commissioning Fuel and Air Positions
72
Starting Commissioning
73
Enter CLOSED Position
74
Enter OPEN Position
75
Set up START Position
76
Phase Hold
77
Add Trim Data During Commissioning
78
Commissioning VSD
80
Set GOLDEN START Position
81
Set FGR Position
83
Set HIGH Position
85
Set INTER Position
86
Set INTER or START Position
87
Save Commission
88
Fuel Flow Metering
89
Commissioning Fuel Flow through MM
89
Commissioning Fuel Flow through 4-20Ma Feedback
91
Calorific Fuel Data
92
Conversion Factor for Imperial Gas Flow Meters
93
Correction Factor for Burners Significantly above Sea Level
93
Gas Volume Conversion Factors
94
Gas/ Air Pressure Commission
96
Single Point Change
97
Online Changes
102
Setpoint Schedule
103
Setpoint Schedule Overview
103
Configuring Setpoint Schedule
103
4 Fuel Output Modes & Changeover Options
106
Overview
106
Fuel Output Modes on the Mk8 MM
107
Single Fuel Output Mode (SFOM)
108
Fuel Configuration and Wiring in SFOM
108
Pressure Sensors in SFOM
108
Commissioning in SFOM
108
Fuel Changeover Process in SFOM
108
Dual Fuel Output Mode (DFOM)
109
Fuel Configuration and Wiring in DFOM
109
Pressure Sensors in DFOM
109
Commissioning in DFOM
110
Fuel Changeover Process in Dual Fuel Output Mode
110
Fuel Change on the Fly (COF)
112
Overview
112
Checks before COF Can Take Place
113
COF Changeover Position
113
COF Fuel Changeover
114
Checks after COF Fuel Changeover
115
Continuous Pilot with COF
116
Gas Pressure Sensors and Valve Proving in DFOM with COF
118
Limitations of DFOM and COF
119
5 Pid Control
120
Proportional Band
120
Integral Control
121
Derivative Control
122
2000 MM Features
123
Firing Rate Control
123
Hand Operation
123
Low Flame Hold
123
Auto Operation
123
Using 4-20Ma Servomotors
125
Overview
125
External 4-20Ma Servomotor Requirements
125
Wiring
126
Settings
127
Commissioning
127
Flame Detection Using Flame Switch
128
Continuous Pilot
129
Continuous Pilot with Interrupted Pilot Sequence
130
Continuous Pilot with Intermittent Pilot Sequence
131
Load Sensor Value Calibration
132
External Modulation
133
External Setpoint
133
Second Setpoint Select
133
Start Position Interlock and Purge Position Interlock
134
Purge Pressure Proving/ Purge Hold
135
No Pre-Purge
136
7 Intelligent Boiler Sequencing
137
Sequencing Schematics
137
Hot Water Example
138
Single/ Multi-Burner Examples
139
IBS Communications
140
Sequencing Options and Parameters
141
Hot Water Sequencing
142
Implementing Hot Water Sequencing
142
Two Port Valve Operation
143
Steam Sequencing
144
Warming Steam Boilers
144
Implementing Steam Sequencing
144
Low Pressure Steam Sequencing
145
Troubleshooting - Sequencing
146
8 Multi-Burner Operation
147
Multi-Burner Overview
147
Configuring Multi-Burner Operation
148
Wiring
148
Options and Parameters
149
Commissioning in Multi-Burner Operation
149
Fuel Flow Metering in Multi-Burner Operation
149
Single Point Change in Multi-Burner Operation
149
Multi-Burner Operation Options
150
Fully Linked Operation
150
Independent on Fault
151
Multi-Burner with Water Level Control
152
Multi-Burner with EGA
153
Multi-Burner with Single EGA
153
Multi-Burner with Individual Egas
154
Multi-Burner External Modulation
155
Permanent External Modulation
155
Switched External Modulation
155
9 Expansion Features
156
10 Water Level Control
157
Overview
157
Safety
157
Autoflame Water Level Control
157
Water Treatment
158
Water Level Control Expansion Options
159
Water Valves
165
Specifications
165
Feed Water Valve Sizing
166
Feed Water Control
167
Ways of Level Sensing
168
Overview
168
Configuration
169
Capacitance Probes
172
Overview
172
Operation
173
Specification
173
Installation Safety Guidelines
175
Configuration
180
Capacitance Probes Maintenance
180
Nd Low Probe
181
Overview
181
Operation
181
Specifications
181
Installation and Safety Guidelines
183
Configuration
184
Analogue Water Level
185
Auxiliary Alarm Inputs
186
Commissioning Procedure
187
Commissioning Checks
187
Levels
187
Setting End of Probe Level
188
Setting 2 Nd Low Level
190
Setting 1 St Low Level
191
Setting Control Point Level
192
Setting HIGH Level
193
Save Commissioning
194
Operational Checks
196
10.9.10 Adjust Control Point
197
Water Level Control Functions
198
10.10.1 Pre-Alarms
198
10.10.2 Pump Bypass
198
10.10.3 Test Outputs and Shunt Switch
199
10.10.4 Sudden Pressure Drop
200
Faults
201
11 Top Blowdown
204
Overview
204
Importance of Maintaining TDS
204
TDS, Conductivity and Temperature
205
Top Blowdown Expansion Options
206
TDS Valves
209
TDS Probe
210
Specification
210
Dimensions
211
Installation
212
Configuration
213
Wiring
213
Top Blowdown PID Controller
213
Ways of Controlling TDS Level
214
Continuous TDS Control
214
Solenoid and Servomotor 2-State TDS Control
214
TDS Timing Diagram
215
Sample Routine
216
Water Hardness Monitoring
217
Calibrating the TDS Probe
218
Faults
220
12 Bottom Blowdown
221
Overview
221
Bottom Blowdown Expansion Options
222
Bottom Blowdown Reduction
223
Blowdown Energy Savings
223
Calculation for Bottom Blowdown Reduction
224
Installation Guidance
226
Bottom Blowdown Valve
227
Bottom Blowdown Using Solenoid Valve
227
Bottom Blowdown Module
228
Set-Up
230
Bottom Blowdown Settings
230
Setting Servomotor
231
Bottom Blowdown Configuration
235
Bottom Blowdown Schedule
235
Bottom Blowdown Log
237
Faults
238
13 Draught Control
239
Overview of Draught Control
239
Parts Required for Draught Control
241
Draught Control Expansion Options
242
Draught Control Operation
244
Operation Overview
244
Deactivation Window
245
Draught Control Trim
246
Draught Control Set-Up
248
Configuration
248
Ways of Using Draught Servomotor
249
Commissioning Draught Control
250
Commissioning Checks
250
Commissioning Screen
251
Faults
252
14 Direct Modbus
253
Overview
253
Direct Modbus Expansion Options
254
Setup and Configuration
255
Modbus Addresses
256
15 First Outs
264
Overview of Firs Outs
264
First Outs Expansion Options
264
First Outs Configuration
265
Enabling First Outs
265
Running Interlock Circuit
265
Accessing First Outs
266
First out Function
267
Edit First out Label
268
First Outs Interlock
269
16 Heat Flow
270
Overview
270
Expansion Options
271
Wiring
273
Heat Flow Function
274
Steam Flow Metering
279
Steam Flow Calculation
279
Steam Flow
283
Steam Flow with Economiser
284
Steam Flow with Deaerator
285
Steam Flow with Deaerator and Feed Sensor
286
Hot Water Flow Metering
287
Hot Water Flow Calculation
287
Hot Water Flow
289
Hot Water Flow with Economiser
290
Spare Temperature Sensor
291
Configuration Options
291
Spare Temperature Sensor Terminal
291
Exhaust Temperature Shutdown Threshold
293
Faults
294
17 Fully Metered Combustion Control
295
Overview
295
Introduction
295
Importance of Excess Air
295
Fully Metered Control Expansion Options
296
Fully Metered Combustion Control Operation
300
Philosophy
300
Firing Rate
300
Control Process
301
Mass Flow Meters
302
Volume Flow Meters
302
Set-Up
303
Configuration
303
Limitations
304
Commissioning
305
Faults
308
18 Operation
309
Home Screen
309
Home Screen Components
310
Faults
312
Status Screen
313
Status
313
Status - History
314
Status - Burner Enable/Disable
315
Status - Low Flame Hold
316
Status - Hand Mode
317
Fuel-Air Screen
318
Fuel-Air - Curve
318
Fuel-Air - Map
319
Fuel-Air - History
320
Flame Safeguard Screen
321
Flame Safeguard
321
Flame Safeguard - History
322
Channels Screen
323
Servomotor
323
VSD Channel
324
Gas Pressure Sensor Screen
325
Gas Pressure
325
Gas Sensor - History
326
Air Pressure Sensor Screen
327
Air Pressure
327
Air Sensor - History
328
Fuel Flow Screen
329
Fuel Flow
329
Fuel Flow - History
330
Sequencing Screen
331
IBS - Status
331
IBS - Lead Boiler
332
IBS - History
333
EGA Screen
334
18.10.1 EGA - Gas
334
18.10.2 EGA - Temperature
335
18.10.3 EGA - Efficiency
336
Outside Temperature Compensation Screen
337
Water Level Screen
338
18.12.1 Water Level - Status
338
18.12.2 Water Level - History
339
Top Blowdown Screen
340
Bottom Blowdown Screen
342
Steam Flow Screen
343
18.15.1 Steam Flow - Status
343
18.15.2 Steam Flow - History
344
Draught Screen
345
18.16.1 Draught Control - Status
345
18.16.2 Draught Control - History
346
First Outs
347
Fully Metered Combustion Control
348
System Configuration Screen
349
18.19.1 Language Selection
350
18.19.2 Options
351
18.19.3 Parameters
352
18.19.4 Expansion Options
353
18.19.5 Boiler Room Configuration
354
18.19.6 Online Changes
361
18.19.7 Set Clock
362
18.19.8 Run Times
363
18.19.9 Bottom Blowdown Schedule
366
Manual
367
Commission Data
368
Diagnostics
369
System Log
370
19 Errors and Lockouts
371
Errors
371
Lockouts
375
Alarms and Warnings
380
Settings Conflicts
388
Forced Commission Reasons
393
Other manuals for AUTOFLAME Mk8 MM
End User Guide
72 pages
Installation And Commissioning Guide
170 pages
5
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AUTOFLAME Mk8 MM Specifications
General
Brand
AUTOFLAME
Model
Mk8 MM
Category
Controller
Language
English
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