JEM AF-1 User manual

AF-1 and AF-2
fans
user manual

680
700
335
320
360
180
AF-1
AF-2
770
750
310
600
390
400
DIMENSIONS
All dimensions are in millimeters
©2005-2007 JEM / Martin Professional A/S. All rights reserved. No part of this manual may be
reproduced, in any form or by any means, without permission in writing from Martin Professional A/S.
Information subject to change without notice. Martin Professional A/S and all affiliated companies disclaim
liability for any injury, damage, direct or indirect loss, consequential or economic loss or any other loss
occasioned by the use of, inability to use or reliance on the information contained in this manual.
P/N 35000166, Rev. D

C ONTENTS
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
AC power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Physical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Installing control hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Remote control installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
AF-1 10 V control installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
DMX installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Using fans with smoke machines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Using fans with smoke ducting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Remote control operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
DMX control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Service and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Replacing the main fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
AF-1 specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
AF-2 specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Disposing of this product
JEM®products are supplied in compliance with Directive 2002/96/EC of the
European Parliament and of the Council of the European Union on WEEE
(Waste Electrical and Electronic Equipment), as amended by Directive
2003/108/EC, where applicable.
Help preserve the environment! Ensure that this product is recycled at the
end of its life. Your supplier can give details of local arrangements for the
dis
p
osal of Martin
p
roducts.

4 AF-1 and AF-2 fans user manual
Connections panels
g
f
e
d
a
c
b
1 2 3 45 6 7 8 910
ON
h
i
1 2 3 45 6 7 8 910
ON
a
bc
df
e
g
h
a – Remote in
b – Power inlet
c – Main fuseholder
d – DMX out (5-pin XLR)
e – DMX in (5-pin XLR)
f – DMX out (3-pin XLR)
g – DMX in (3-pin XLR)
h – DIP switch
i – Data LED
a – Analog 0 - 10 V in
b – Analog 0- 10 V out
c – Remote in
d – Power LED
e – Data LED
f – DIP switch
g – DMX in (3-pin XLR)
h – DMX out (3-pin XLR)
AF-1 Fan
AF-2 Fan

Introduction 5
I NTRODUCTION
important! READ AND SAVE THESE INSTRUCTIONS!
Thank you for selecting a JEM AF series fan.
The AF-1 and AF-2 fans are powerful machines designed for professional
and semi-professional use in clubs, TV studios, theaters and touring
contexts. They are suitable for a wide range of applications including
smoke and haze dispersal, sending smoke through ducting, wind effects
and cooling performers or equipment. When fans are used at high output
in conjunction with a smoke machine at low output, a perfect haze effect
can be produced.
Both fans have high quality sealed motors designed to withstand the high
condensation levels associated with close proximity smoke
AF-1 and AF-2 fans can be controlled using the remote control unit
supplied with each product or via DMX on a serial data link. They may be
interfaced with ZR12AL, ZR12DMX, ZR22STD, ZR22DMX and ZR33
smoke machines and Club Smoke System to allow simultaneous smoke
and fan operation.
When used in combination with smoke machines, etc., DMX control
allows atmospheric effects to be integrated in the light show directly from
the lighting console. The remote control allows variable fan speed in
continuous or timer operation. When using the built-in timer, operating
periods and intervals between operating periods can be set
independently.
The AF-1 fan can also be controlled using a 0 - 10 V analog controller.
The most recent version of this manual is available under Smoke in the
Support area of the Martin website at: http://www.martin.com
F e a t u r e s
• DMX control.
• Remote control with instant or timer-controlled operation.
• 5 meter (16.4 ft.) remote cable.
• Variable fan speed.

6 AF-1 and AF-2 fans user manual
• Adjustable flying bracket offering 180° of tilt
• Can be flown or placed on a flat surface
• Rugged construction.
• Sealed high-quality maintenance-free fan motor offers high airflow, high
resistance to condensation, ingress of dirt, smoke fluid, etc. and low
noise.
The AF-1 can also be controlled singly or on a multiple link using an
analog 0 - 10 V controller.
S a f e t y i n f o r m a t i o n
Warning! This product is not for household use. It presents risks of
lethal or severe injury due to electric shock, falls and fast-
moving blades.
To reduce the risk of fire or electric shock, do not use this fan
with any solid-state speed control device.
Read this manual before powering or installing the fan, follow the safety
precautions listed below and observe all warnings in this manual and
printed on the machine. Save this manual for future reference. If you have
questions about how to operate the machine safely, please contact a
JEM/Martin dealer for assistance or call the Martin 24-hour service hotline
on [phone].
Refer any service operation not described in this manual to a qualified
technician.
Preventing electric shocks
• Always ground (earth) the machine electrically.
• Use only a source of AC power that complies with local building and
electrical codes, and that has both overload and ground-fault protection.
• Check the AC supply voltage is correct for use with the machine. The
voltage setting is printed on the machine’s serial label.
• Disconnect the machine from power before removing any components
or servicing, and when not in use.
• Moisture can cause dangerous electrical faults. Do not aim fog output at
electrical connections or devices.
• Do not expose this machine to wet conditions – the machine is not
waterproof.

Introduction 7
• Do not spill fluid over the machine. If fluid is spilled, disconnect the
machine from power and clean with a damp cloth. If fluid is spilled onto
electronic parts, contact an approved JEM/Martin dealer for advice.
• Do not dismantle or attempt to repair a faulty machine. Refer all service
to an authorized JEM/Martin service dealer.
• Do not operate the machine if the power cable or connector is
damaged. A damaged cable or connector must be replaced with a new
item, available from your JEM/Martin dealer.
• Do not operate the machine with damaged, deformed or missing parts.
Preventing burns and fire
• Ensure that airflow around the machine is free and unobstructed.
• Do not operate the machine if the ambient temperature (Ta) exceeds
55° C (131° F).
Preventing injuries
• Never allow any object or part of your body to enter the path of the fan
blades, and ensure that clothing, cables or other items cannot be
sucked into the fan.
• Disconnect the fan from power before removing any cover or grill. Do
not operate the fan unless all covers and grills are installed and
securely fastened.
• Ensure that the supporting structure or surface can hold at least 10
times the weight of all installed devices.
• Use an approved means of secondary attachment such as a safety
cable.
• Work from a stable platform and block access below the work area
when installing, servicing or removing the machine.
U n p a c k i n g
AF-1 and AF-2 fans are supplied with:
• Remote control unit with 5 meter (16.5 ft) cable with XLR connector
• Power cable
• User manual
• Adjustable flying bracket

8 AF-1 and AF-2 fans user manual
I NSTALLATION
This product must be installed by qualified personnel only.
A C p o w e r
AF-1 and AF-2 fans are available in two versions:
• US version: 115 V, 50/60 Hz (for use with 105-115 VAC, 60 Hz power
supplies)
• EU version: 230 V, 50/60 Hz (for use with 220-245 VAC, 50 Hz power
supplies)
Fans are supplied set up to match local voltage and frequency settings.
The factory default setting is shown on the serial number label.
Warning! For protection from fire and electric shock, AF-1 and AF-2 fans
must be grounded (earthed). The power supply must have
overload and ground-fault protection.
Check that power cables are undamaged and rated for the
current requirements of all connected devices before use.
Check the power supply setting specified on the serial number
label before applying power.
Installing a cord cap on the power cable
On EU (230 V, 50/60 Hz) models, the power cable must be fitted with a
grounding-type cord cap (earthed mains plug) that fits your power
distribution system. Consult a qualified electrician if you have any doubts
about proper installation.
Wire Pin Marking Screw color
brown live “L” yellow or brass
blue neutral “N” silver
yellow/green ground green
Table 1: Cord cap wiring

Installation 9
Following the cord cap manufacturer’s instructions, connect the yellow
and green wire to ground (earth), the blue wire to neutral and the brown
wire to live. The table on page 8 shows some pin identification schemes:
P h y s i c a l i n s t a l l a t i o n
The AF-1 fan may be suspended from a suitable support such as a truss,
placed on a horizontal surface resting on its rubber feet, or fastened to a
surface.
The AF-2 fan may be suspended from a suitable support such as a truss.
If it is installed in the touring frame available as an accessory, it may be
placed on a horizontal surface resting on the touring frame’s rubber feet.
Both fans can be tilted through 180° and locked in position.
Warning! The slight vibration of the fan may cause fasteners to loosen.
Check all fasteners regularly for tightness, especially when
the machine is newly installed.
The AF-1 and AF-2 fans must be positioned well out of reach
of the public.
Suspending from a support
Warning! Block access below the work area and work from a stable
platform when installing, servicing or removing the machine.
Always use a secure secondary attachment that can hold at
least 10 times the weight of the machine.
Rigging clamps, omega brackets and fasteners are
available as accessories from your JEM/Martin dealer.
Any quarter-turn fasteners used must be turned a full
quarter turn clockwise to lock them (see illustration).
1. Verify that any structure used to support the machine
can support at least 10 times the total weight of all installed fixtures,
clamps, cables, auxiliary equipment, etc.
2. Check that all rigging clamps and fasteners are undamaged and can
support at least 10 times the machine’s weight.
•AF-1 fan: Bolt a rigging clamp to the machine’s flying bracket using
a grade 8.8 (minimum) M12 bolt and lock nut, or as recommended

10 AF-1 and AF-2 fans user manual
by the clamp manufacturer, through the 13 mm hole in the center of
the mounting bracket.
•AF-2 fan: Two rigging options exist. Either:
a) Bolt two rigging clamps to two Martin standard omega brackets
(P/N 91602001) using grade 8.8 (minimum) M12 bolts and lock
nuts, or as recommended by the clamp manufacturer. Fasten the
two omega brackets to the flying bracket or touring frame. This
option allows the fan to be flown in line with or at 90° to a truss.
or:
b) Bolt one rigging clamp to one Martin 250-300 wide omega
bracket (P/N 91602000). Fasten the wide omega bracket to the
flying bracket or touring frame. This option allows the fan to be
flown at any angle relative to the truss.
3. Clamp the fan to a truss or similar support.
4. Loop a safety wire that can hold at least 10 times the weight of the
machine through/over the support and through the flying bracket or
touring frame.
5. Loosen the swivel locks and tilt the fan to the desired angle. Turn the
swivel locks clockwise to tighten. Check that fan, hardware and safety
attachment are secure before applying power.
Placing on a horizontal surface
AF-1 and AF-2 fans can be installed on a level horizontal surface:
• The AF-1 can be placed on a surface resting on its rubber feet.
• The AF-2 can be installed in a touring frame (available as an accessory)
and then placed on a surface resting on the frame’s rubber feet.
If the machine is to be placed on a horizontal surface:
• Ensure that the surface is level, stable and capable of supporting at
least ten times the weight of the machine.
• Secure the machine so that it cannot slide or fall, even if air pressure
during full speed operation and vibration are present.
• Eliminate any risk of accidental contact.
Martin standard omega
bracket: P/N 91602001
Martin 250-300 wide omega
bracket: P/N 91602000

Installing control hardware 11
I NSTALLING CONTROL HARDWARE
The AF-1 and AF-2 fans can be operated either using the JEM
multifunction remote control unit supplied with each machine, or via DMX
using a DMX control device and serial data link.
The AF-1 can also be operated using a 0 - 10 volt DC analog control
device. Up to four AF-1 fans can be linked in remote and 10 V analog
operation.
R e m o t e c o n t r o l i n s t a l l a t i o n
To connect the remote control unit:
1. Power fans off.
2. Plug the XLR connector on the remote control cable into the REMOTE
IN plug on the connections plate (see “Connections panels” on page
4).
3. If linking multiple AF-1 fans, use suitable cable to connect the first
fan’s analog output to the next fan’s analog input, and continue
connecting fans output to input.
4. Reapply power.
The AF-2 touring frame available as an accessory includes a docking
station for the remote control unit (see illustration below). The remote
control can be fastened in place using the two thumbscrews provided,
and the remote cable wrapped around the brackets.

12 AF-1 and AF-2 fans user manual
A F - 1 1 0 V c o n t r o l i n s t a l l a t i o n
AF-1 fan speed can be controlled by connecting a suitable analog 0 - 10
volts DC controller via the ANALOG IN connector. Up to four machines
can be linked on an analog control link. To create an analog control link:
1. Power fans off.
2. Connect a suitable cable to the controller’s output and the first fan’s
analog input.
3. Use suitable cable to connect the first fan’s analog output to the next
fan’s analog input, and continue connecting fans output to input.
4. Reapply power.
D M X i n s t a l l a t i o n
Up to 32 devices can be controlled on one DMX data link. Devices must
be ‘daisy-chained’ in one continuous line without branches. More devices
can be added and the link can be branched using an optically isolated
splitter/amplifier such as the Martin RS-485 Opto-Splitter (P/N 90758060).
DMX cable connection
A reliable DMX data connection requires suitable cable. Standard
microphone cable cannot transmit DMX data reliably over long runs. For
best results, use shielded cable with at least one twisted pair specifically
designed for RS-485 applications. Your Martin dealer can supply suitable
high quality cable in various lengths.
AF-1 and AF-2 fans both connect to a serial DMX data link via XLR
connectors:
• The AF-1 fan has three-pin XLR connectors for DMX IN and DMX OUT.
• The AF-2 fan has both three-pin and five-pin XLR connectors for DMX
IN and DMX OUT.
All DMX connectors on AF-1 and AF-2 fans are wired with pin 1 to ground,
pin 2 to signal - (cold), and pin 3 to signal + (hot). This is the standard pin
assignment for DMX devices.

Installing control hardware 13
To connect to devices with reversed polarity, use a phase-reversing
adaptor (P/N 11820006).
To connect the AF-1 to a device with a 5-pin output, use a 5-pin male to 3-
pin female XLR adaptor cable (P/N 11820005). To connect the AF-1 to a
device with a 5-pin input, use a 3-pin male to 5-pin female adaptor cable
(P/N 11820004).
To connect the DMX data link:
1. Power all devices off.
2. Connect a data cable from the controller’s DMX data output to the first
device’s DMX input
3. Connect the DMX output of this device to the DMX input of the next
device.
4. Continue connecting up to a total of 32 devices in one single line,
output to input.
5. Terminate the link by inserting a male termination plug (available from
your Martin dealer: P/N 91613017) into the data output of the last
device. A termination plug is simply an XLR connector with a 120
Ohm, 0.25 W resistor soldered across pins 2 and 3.
Specifying DMX control channels
AF-1 and AF-2 fans use a single DMX control channel to receive
instructions from the controller. This control channel is the DMX address.
To control machines individually, each must have its own unique DMX
address. To control identical machines as a group, they can all be given
the same DMX address. They will then receive the same instructions and
should behave identically. Setting up identical fixtures with the same DMX
address can also be a good tool for troubleshooting unexpected behavior.
DMX adaptors: connection pins and polarity
Phase-Reversing
Adaptor
Male Female
1
2
3
1
2
3
3-pin to 3-pin
P/N 11820006
Adaptor
Male Female
1
2
3
4
5
1
2
3
5-pin to 3-pin
P/N 11820005
Adaptor
Male Female
1
2
3
1
2
3
4
5
3-pin to 5-pin
P/N 11820004

14 AF-1 and AF-2 fans user manual
The DMX address on AF-1 and AF-2 fans can be set to any channel from
1 to 512 using DIP-switch pins 1 - 10:
1. Decide on an available DMX address for each machine.
2. Look up the DIP-switch settings using the Martin Address Calculator at
http://www.martin.dk/service/utilities/AddrCalc/index.asp, or look for
the address in the DIP-switch settings table on page 15. For example,
to set the DMX address to 101, you need to set DIP-switch pins 1, 3, 6
and 7 to ON, as shown in the illustration below:
3. Power the controller and all devices off.
4. For each device, set the DMX address by setting DIP-switch pins 1
through 10 to the ON (1) or OFF (0) position as listed in the table on
the next page. As an example, channel 101 is highlighted in the table.

Installing control hardware 15
DMX address DIP-switch settings
To use this table, first find the DMX address in the main block in the table.
Then read the settings for pins 1 - 5 to the left and read the settings for
pins 6 - 9 above the address. “0” means OFF and “1” means ON.
For example, to set the DMX address to 101, you need to set DIP-switch
pins 1, 3, 6 and 7 to ON, as highlighted in the table.
DIP switch pins setting
0 = OFF
1 = ON
#9 0 0 0 0000011111111
#8 0 0 0 0111100001111
#7 0 0 1 1001100110011
#6 0 1 0 1010101010101
#1 #2 #3 #4 #5
0 0 0 0 0 32 64 96 128 160 192 224 256 288 320 352 384 416 448 480
1 0 0 0 0 1 33 65 97 129 161 193 225 257 289 321 353 385 417 449 481
0 1 0 0 0 2 34 66 98 130 162 194 226 258 290 322 354 386 418 450 482
1 1 0 0 0 3 35 67 99 131 163 195 227 259 291 323 355 387 419 451 483
0 0 1 0 0 4 36 68 100 132 164 196 228 260 292 324 356 388 420 452 484
10100 5 37 69 101 133 165 197 229 261 293 325 357 389 421 453 485
0 1 1 0 0 6 38 70 102 134 166 198 230 262 294 326 358 390 422 454 486
1 1 1 0 0 7 39 71 103 135 167 199 231 263 295 327 359 391 423 455 487
0 0 0 1 0 8 40 72 104 136 168 200 232 264 296 328 360 392 424 456 488
1 0 0 1 0 9 41 73 105 137 169 201 233 265 297 329 361 393 425 457 489
0 1 0 1 0 10 42 74 106 138 170 202 234 266 298 330 362 394 426 458 490
1 1 0 1 0 11 43 75 107 139 171 203 235 267 299 331 363 395 427 459 491
0 0 1 1 0 12 44 76 108 140 172 204 236 268 300 332 364 396 428 460 492
1 0 1 1 0 13 45 77 109 141 173 205 237 269 301 333 365 397 429 461 493
0 1 1 1 0 14 46 78 110 142 174 206 238 270 302 334 366 398 430 462 494
1 1 1 1 0 15 47 79 111 143 175 207 239 271 303 335 367 399 431 463 495
0 0 0 0 1 16 48 80 112 144 176 208 240 272 304 336 368 400 432 464 496
1 0 0 0 1 17 49 81 113 145 177 209 241 273 305 337 369 401 433 465 497
0 1 0 0 1 18 50 82 114 146 178 210 242 274 306 338 370 402 434 466 498
1 1 0 0 1 19 51 83 115 147 179 211 243 275 307 339 371 403 435 467 499
0 0 1 0 1 20 52 84 116 148 180 212 244 276 308 340 372 404 436 468 500
1 0 1 0 1 21 53 85 117 149 181 213 245 277 309 341 373 405 437 469 501
0 1 1 0 1 22 54 86 118 150 182 214 246 278 310 342 374 406 438 470 502
1 1 1 0 1 23 55 87 119 151 183 215 247 279 311 343 375 407 439 471 503
0 0 0 1 1 24 56 88 120 152 184 216 248 280 312 344 376 408 440 472 504
1 0 0 1 1 25 57 89 121 153 185 217 249 281 313 345 377 409 441 473 505
0 1 0 1 1 26 58 90 122 154 186 218 250 282 314 346 378 410 442 474 506
1 1 0 1 1 27 59 91 123 155 187 219 251 283 315 347 379 411 443 475 507
0 0 1 1 1 28 60 92 124 156 188 220 252 284 316 348 380 412 444 476 508
1 0 1 1 1 29 61 93 125 157 189 221 253 285 317 349 381 413 445 477 509
0 1 1 1 1 30 62 94 126 158 190 222 254 286 318 350 382 414 446 478 510
1 1 1 1 1 31 63 95 127 159 191 223 255 287 319 351 383 415 447 479 511
Table 2: DMX address DIP-switch settings

16 AF-1 and AF-2 fans user manual
O PERATION
Before powering on, check that the fan is correctly and safely installed.
U s i n g f a n s w i t h s m o k e m a c h i n e s
When using a fan in
combination with a
smoke machine, fog
machine or hazer,
place the fan behind
the machine, as
illustrated on the
right. Do not place
the fan in front of the
machine and direct
the output from the
machine into the fan,
as this will cause
undesirable residue
build-up and the fan
blades will degrade
the quality of the
smoke.
U s i n g f a n s w i t h s m o k e d u c t i n g
To avoid residue build-up and preserve smoke quality, connect fans to
smoke ducting using a Y-shaped arrangement, placing the fan on one arm
of the Y and the smoke machine on the other.

Operation 17
R e m o t e c o n t r o l o p e r a t i o n
The multifunction remote control unit supplied with the AF-1 and AF-2
fans allows instant or timer-controlled fan operation and airflow control.
The unit also gives feedback on the status of the machine.
1
0
2
3
456
7
8
9
10
RUN
ON
1
0
2
3
456
7
8
9
10
DELAY
1
0
2
3
456
7
8
9
10
SPEED
x8ON
ON
ON TIMER
POWER CYCLE
AF-2
MULTI-FUNCTION
CONTROLLER
Jem
A B C D
E F G H i
A INSTANT FAN OPERATION BUTTON – Press to run the fan
at the speed set on the fan speed control.
B STANDBY – Puts the fan into standby mode. Must be set
to ON to operate in any mode.
C TIMER VALUE BUTTON – When timer is active, adjusts
timer values by a factor of 8 (i.e. a 5 second run time
becomes 40 seconds and a 10 second delay time
becomes 1 minute 20 seconds).
D TIMER ENGAGE – Engages the timer to run the fan
according to the timer settings.
E SPEED – Sets fan speed from minimum to maximum.
F POWER LED – Lights when power is on.
G DELAY TIME CONTROL – Sets intervals between
operating periods during timer-controlled operation.
H CYCLE LED – Lights during timer-controlled operation.
I RUN TIME CONTROL – Sets duration of operating periods
during timer-controlled operation.
Multifunction controller overview

18 AF-1 and AF-2 fans user manual
To set timer operation using the remote control:
1. Set the desired amount of airflow using the SPEED control
2. Set intervals between operating periods by setting the DELAY control
to between 1 and 9.
3. Set duration of operating periods by setting the RUN control to
between 1 and 9.
4. Set the STANDBY button to ON
5. Set the TIMER ON button to ON.
The CYCLE LED lights when the timer function is active.
To extend timer settings, press the X8 button. This will multiply both RUN
and DELAY times by 8.
D M X c o n t r o l
Fan speed on the AF-1 and AF-2 fans can be controlled using a DMX
controller.
DMX controller operation
When a fan is powered on, the Data LED next to the DIP-switch will light
when a valid DMX signal is received.
Increase the value on the machine’s DMX control channel to increase fan
speed as shown below:
DMX control channel levels
Level Percentage Effect
0-27
28-255
0-10%
11-100%
Fan speed zero.
1 - 100% fan speed.

Service and maintenance 19
S ERVICE AND MAINTENANCE
Any service procedure not described here should be referred to a
qualified technician.
Warning! Disconnect the fan from power before removing any grills or
covers.
C l e a n i n g
Clean the outside of the fan with a damp cloth only. Do not use solvents.
Periodic cleaning of the fan blades and grills is necessary to maintain
peak performance. Cleaning intervals will depend on the operating
environment. Inspect the fan regularly for dust and smoke residue
buildup, and clean as soon as there is significant dirt buildup on fan
blades or at the first signs that airflow through grills may be restricted.
Use a soft brush and vacuum to clean grills and fan blades.
AF-1 cleaning access
1. Disconnect the fan
from power.
2. Remove the four
cross-head screws (A)
as illustrated, and lift
the grill/motor
assembly clear of the
housing. The motor
cable (B) will remain
attached to the motor
and the housing.
Avoid straining the
cable.
3. After cleaning, replace
the grill and screws,
ensuring that screws
are securely
tightened.
A
A
AA
B
1 2 3 45 6 7 8 9 10
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20 AF-1 and AF-2 fans user manual
AF-2 cleaning access
1. Disconnect the fan from power.
2. Remove the 16 cross-head screws from the covers (see illustration
above), and remove the covers.
3. Reaching into the fan housing for
access to the locking nuts,
remove the four 6mm Allen
screws holding the front grill (see
illustration on right), collecting all
washers and grommets for re-
use.
Note: the front grill is on the
opposite side from the fan motor.
It should be possible to clean the
machine without removing the
rear grill that holds the fan motor.
4. After cleaning, replace the screws and front grill. Reassemble exactly
as shown in the next illustration, making sure that the rubber