Group Dynamics GU120L Installation guide

INDUSTRIAL TUMBLE DRYERS
55kg
77kg
BASIC INSTALLATION / OPERATION
70421501R3EN
Publication date: Jan 2012
www.groupdynamics-laundry.com

www.groupdynamics-laundry.com

Basic Installation/Operation
©Published by permission of the copyright owner – DO NOT COPY or TRANSMIT70421501 (EN) 1
Installation must conform with local codes.
IMPORTANT: Information must be obtained from
a local gas supplier on instructions to be followed if
the user smells gas. These instructions must be
posted in a prominent location. Step-by-step
instructions of the above safety information must
be posted in a prominent location near the tumbler
for customer use.
FOR YOUR SAFETY, the information in
this manual must be followed to minimize
the risk of fire or explosion or to prevent
property damage, personal injury or
death.
W033
•Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
• WHAT TO DO IF YOU SMELL GAS:
– Do not try to light any appliance.
– Do not touch any electrical switch; do
not use any phone in your building.
– Clear the room, building or area of all
occupants.
– Immediately call your gas supplier
from a neighbor’s phone. Follow the
gas supplier’s instructions.
– If you cannot reach your gas supplier,
call the fire department.
• Installation and service must be
performed by a qualified installer,
service agency or the gas supplier.
W052
WARNING
FOR YOUR SAFETY
Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
W053
To reduce the risk of fire, electric shock,
serious injury or death to persons when
using the tumbler unit, follow these basic
precautions:
• Read all instructions before using
tumbler.
• DO NOT tamper with controls.
• DO NOT bypass any safety devices.
• Always follow the fabric care
instructions supplied by the garment
manufacturer.
• Remove laundry immediately after the
tumbler stops.
• DO NOT reach into tumbler if cylinder is
revolving.
To avoid creating any flammable vapors
which may explode, ignite or cause
corrosive damage, DO NOT dry the
following materials:
• Articles that have been cleaned in,
soaked in, washed in or spotted with
gasoline, dry-cleaning solvents or other
flammable/explosive substances.
• Plastics or articles containing foam
rubber or similarly textured rubberlike
materials.
• Articles that have traces of flammable
substances like cooking oil, machine
oil, flammable chemicals or thinner.
• Articles containing wax or cleaning
chemicals.
• Fiberglass curtains or draperies (unless
the label says it can be done).
W440R1
WARNING
www.groupdynamics-laundry.com

© Published by permission of the copyright owner
All rights reserved. No part of the contents of this book may be reproduced or transmitted in any form or by any
means without the expressed written consent of the publisher.
Basic Installation/Operation
270421501 (EN)© Published by permission of the copyright owner – DO NOT COPY or TRANSMIT
Table of
Contents
Introduction......................................................................................... 3
Model Identification ............................................................................. 3
Wiring Diagram Location..................................................................... 3
Serial Plate Location............................................................................. 4
Safety Information.............................................................................. 5
Important Safety Instructions ............................................................... 5
Installation........................................................................................... 7
Specifications and Dimensions............................................................. 7
120 Pound Tumble Dryer Dimensions and Exhaust
Outlet Locations ............................................................................. 8
170 Pound Tumble Dryer Dimensions and Exhaust
Outlet Locations ............................................................................. 9
Electric and Gas Connection Locations for Gas Models ................. 10
Electric and Steam Connection Locations for Steam Models ......... 11
Electric Connection Location for Electric Models .......................... 12
Position and Level the Tumble Dryer................................................... 13
Fire Suppression System....................................................................... 14
Water Requirements......................................................................... 14
Water Connections........................................................................... 14
Electrical Requirements ................................................................... 14
Auxiliary Alarm ............................................................................... 15
Gas Requirements................................................................................. 15
Natural Gas and Liquefied Petroleum.............................................. 15
European Gas ................................................................................... 15
General Information......................................................................... 16
Exhaust Requirements .......................................................................... 18
Make-Up Air.................................................................................... 18
Venting............................................................................................. 18
Electrical Requirements........................................................................ 19
Grounding Instructions .................................................................... 19
Steam Requirements ............................................................................. 20
Thermal Oil Prep .................................................................................. 20
Operation............................................................................................. 23
Emergency Stop Button........................................................................ 23
Operating Instructions .......................................................................... 23
Step 1: Clean Lint Screen/Compartment ......................................... 23
Step 2: Load Laundry....................................................................... 23
Step 3: Determine Control Type and Temperature Setting ............. 23
Step 4: Remove Laundry ................................................................. 23
Control Instructions .............................................................................. 24
Dual Digital Timer Control.............................................................. 24
Electronic OPL Control ................................................................... 25
LED OPL Control ............................................................................ 27
UniLinc Control ............................................................................... 28
Ignition Control Operation ................................................................... 29
Disposal of Unit ................................................................................... 30
www.groupdynamics-laundry.com

©Published by permission of the copyright owner – DO NOT COPY or TRANSMIT 3
70421501 (EN)
Basic Installation/Operation
Introduction
Model Identification
Information in this manual is applicable to these models.
Includes models with the following control suffixes:
Wiring Diagram Location
The wiring diagram is located in the junction or
contactor box.
Gas Steam/Thermal Oil Electric
120 Pound
GU120L
GU120N
HU120L
HU120N
KU120L
KU120N
LU120L
LU120N
PU120L
PU120N
SU120L
SU120N
UU120L
UU120N
XU120L
XU120N
YU120L
YU120N
GU120S
GU120T
HU120S
HU120T
KU120S
KU120T
LU120S
LU120T
PU120S
PU120T
SU120S
SU120T
UU120S
UU120T
XU120S
XU120T
YU120S
YU120T
HU120E
SU120E
UU120E
YU120E
170 Pound
GU170L
GU170N
HU170L
HU170N
KU170L
KU170N
LU170L
LU170N
PU170L
PU170N
SU170L
SU170N
UU170L
UU170N
XU170L
XU170N
YU170L
YU170N
GU170S
GU170T
HU170S
HU170T
KU170S
KU170T
LU170S
LU170T
PU170S
PU170T
SU170S
SU170T
UU170S
UU170T
XU170S
XU170T
YU170S
YU170T
Not Applicable
RE – reversing LED OPL
RM – reversing OPL Micro
RQ – reversing dual digital timer
RU – reversing UniLinc OPL
www.groupdynamics-laundry.com

©Published by permission of the copyright owner – DO NOT COPY or TRANSMIT
Basic Installation/Operation
70421501 (EN)
4
Serial Plate Location
TMB2288N
1Serial Plate
TMB2288N
11
120 POUND TUMBLE DRYER 170 POUND TUMBLE DRYER
www.groupdynamics-laundry.com

©Published by permission of the copyright owner – DO NOT COPY or TRANSMIT 5
70421501 (EN)
Basic Installation/Operation
Safety Information
Save These Instructions
Important Safety Instructions
1. Read all instructions before using the tumble
dryer.
2. Refer to the GROUNDING INSTRUCTIONS
for the proper grounding of the tumble dryer.
3. Do not dry articles that have been previously
cleaned in, washed in, soaked in, or spotted with
gasoline, dry-cleaning solvents, or other
flammable or explosive substances, as they give
off vapors that could ignite or explode.
4. Do not allow children to play on or in the tumble
dryer. This appliance is not intended for use by
young children or infirm persons without
supervision. Young children should be
supervised to ensure that they do not play with
the appliance.
5. Before the tumble dryer is removed from service
or discarded, remove the door to the drying
compartment and the door to the lint
compartment.
6. Do not reach into the tumble dryer if the cylinder
is revolving.
7. Do not install or store the tumble dryer where it
will be exposed to water and/or weather.
8. Do not tamper with the controls.
9. Do not repair or replace any part of the tumble
dryer, or attempt any servicing unless specifically
recommended in the user-maintenance
instructions or in published user-repair
instructions that you understand and have the
skills to carry out.
10. Do not use fabric softeners or products to
eliminate static unless recommended by the
manufacturer of the fabric softener or product.
11. To reduce the risk of fire, DO NOT DRY plastics
or articles containing foam rubber or similarly
textured rubberlike materials.
12. Always clean the lint filter daily.
13. Keep area around the exhaust opening and
adjacent surrounding area free from the
accumulation of lint, dust and dirt.
14. The interior of the tumble dryer and the exhaust
duct should be cleaned periodically by qualified
service personnel.
15. If not installed, operated and maintained in
accordance with the manufacturer’s instructions
or if there is damage to or mishandling of this
product’s components, use of this product could
expose you to substances in the fuel or from fuel
combustion which can cause death or serious
illness and which are known to the State of
California to cause cancer, birth defects or other
reproductive harm.
16. Tumble dryer will not operate with the loading
door open. DO NOT bypass the door safety
switch to permit the tumble dryer to operate with
the door open. The tumble dryer will stop
tumbling when the door is opened. Do not use the
tumble dryer if it does not stop tumbling when
the door is opened or starts tumbling without
pressing or turning the START mechanism.
Remove the tumble dryer from use and call for
service.
17. Tumble dryer will not operate with lint panel
open. DO NOT bypass lint panel safety switch to
permit the tumble dryer to operate with the lint
panel open.
18. Do not put articles soiled with vegetable or cooking
oil in the tumble dryer, as these oils may not be
removed during washing. Due to the remaining
oil, the fabric may catch on fire by itself.
19. To reduce the risk of fire, DO NOT put clothes
which have traces of any flammable substances
such as machine oil, flammable chemicals,
thinner, etc. or anything containing wax or
chemicals such as in mops and cleaning cloths, or
anything dry-cleaned at home with dry-cleaning
solvent in the tumble dryer.
20. Use the tumble dryer only for its intended
purpose, drying fabrics.
21. ALWAYS disconnect and lockout the electrical
power to the tumble dryer before servicing.
Disconnect power by shutting off appropriate
breaker or fuse.
Hazardous Voltage. Can cause shock, burn
or cause death. Allow machine power to
remain off for two minutes prior to working
in and around AC inverter drive.
W359
WARNING
www.groupdynamics-laundry.com

©Published by permission of the copyright owner – DO NOT COPY or TRANSMIT
Basic Installation/Operation
70421501 (EN)
6
22. Install this tumble dryer according to the
INSTALLATION INSTRUCTIONS. All
connections for electrical power, grounding, and
gas supply must comply with local codes and be
made by licensed personnel when required.
23. Remove laundry immediately after tumble dryer
stops.
24. Always read and follow manufacturer’s
instructions on packages of laundry and cleaning
aids. Heed all warnings or precautions. To reduce
the risk of poisoning or chemical burns, keep
them out of reach of children at all times
(preferably in a locked cabinet).
25. Do not tumble fiberglass curtains and draperies
unless the label says it can be done. If they are
dried, wipe out the cylinder with a damp cloth to
remove particles of fiberglass.
26. Always follow the fabric care instructions
supplied by the garment manufacturer.
27. Never operate the tumble dryer with any guards
and/or panels removed.
28. DO NOT operate the tumble dryer if it is
smoking, grinding, has missing or broken parts.
29. DO NOT bypass any safety devices.
30. Solvent vapors from dry-cleaning machines
create acids when drawn through the heater of the
drying unit. These acids are corrosive to the
tumble dryer as well as to the laundry load being
dried. Be sure make-up air is free of solvent
vapors.
31. Failure to install, maintain, and/or operate this
machine according to the manufacturer’s
instructions may result in conditions which can
produce bodily injury and/or property damage.
WARNING
To reduce the risk of serious injury, install
lockable door(s) to prevent public access
to rear of tumble dryers.
W055R1
www.groupdynamics-laundry.com

©Published by permission of the copyright owner – DO NOT COPY or TRANSMIT 7
70421501 (EN)
Basic Installation/Operation
Installation
Specifications and Dimensions
Specifications 120 Pound 170 Pound
Noise level measured during operation at operator
position of 1 m (3.3 ft.) in front of machine and 1.6 m
(5.2 ft.) from the floor.
66 dBA 66 dBA
Cylinder Size:
mm (in.)
1118 x 1041
(44 x 41)
1289 x 1080
(50.75 x 42.5)
Cylinder Capacity dry weight:
kg (lbs.)
54.4
(120)
77.1
(170)
Standard Packaging Weight:
kg (lbs.)
Gas and
Electric
607
(1338)
756
(1667)
Steam 656
(1446)
806
(1776)
Standard Packaging Shipping
Dimensions: mm (in.)
1232 x 1829 x 2286
(48.5 x 72 x 90)
1473 x 1892 x 2515
(58 x 74.5 x 99)
Slat Crate Packaging Weight:
kg (lbs.)
Gas and
Electric
656
(1447)
812
(1791)
Steam 702
(1547)
858
(1891)
Slat Crate Shipping Dimensions:
mm (in.)
1308 x 1880 x 2305
(51.5 x 74 x 90.75)
1549 x 1943 x 2534
(61 x 76.5 x 99.75)
Cylinder Motor Horsepower 3/4 3/4
Fan Motor Horsepower 13
Air Outlet Diameter:
mm (in.)
254
(10)
300
(12)
Maximum Static Back Pressure:
mbar (inches W.C.)
0.8
(0.3)
0.8
(0.3)
Maximum Airflow:
l/sec (C.F.M.)
755
(1600)
1156
(2450)
Gas Models
Net Weight (approximate):
kg (lbs.)
580
(1275)
716
(1575)
Gas Connection 3/4 in. NPT 1 in. NPT
Gas Burner Rating:
Mj/hr. (Btu/hr.)
316
(300,000)
421
(395,000)
Steam Models
Net Weight (approximate):
kg (lbs.)
625
(1375)
761
(1675)
Steam Connection 3/4 in. NPT 3/4 in. NPT inlet
1 in. NPT outlet
Steam Coil Rating at 100 psig:
Boiler Horsepower (Btu/hr.)
11.7
(405,000)
18.8
(648,000)
Electric Models
Heating Element Rating:
Kilowatts (kW)
60 kW N/A
N/A = Not Applicable
www.groupdynamics-laundry.com

©Published by permission of the copyright owner – DO NOT COPY or TRANSMIT
Basic Installation/Operation
70421501 (EN)
8
120 Pound Tumble Dryer Dimensions and
Exhaust Outlet Locations
Refer to Position and Level the Tumbler to temporarily reduce the heights of these models.
TMB2326N
TMB2326N
A
B
C
D
U
V
X
H
F
Z
Y
W
EG
I
TOP VIEW OF
EXHAUST
DUCT
Cabinet Dimensions
ModelsABCDEFGH I
120L/N/E 797 mm
(31.38 in.)
826 mm
(32.5 in.)
1242 mm
(48.91 in.)
1268 mm
(49.91 in.)
1725 mm
(67.92 in.)
1153 mm
(45.38 in.)
1178 mm
(46.38 in.)
2177 mm
(85.7 in.)
1778 mm
(70 in.)
120S 797 mm
(31.38 in.)
826 mm
(32.5 in.)
1242 mm
(48.91 in.)
1268 mm
(49.91 in.)
1725 mm
(67.92 in.)
1153 mm
(45.38 in.)
1178 mm
(46.38 in.)
2121 mm
(83.5 in.)
1778 mm
(70 in.)
Exhaust Outlet Dimensions and Locations
Models U V W X Y Z
120L/N/E 1612 mm
(63.45 in.)
214 mm
(8.44 in.)
190 mm
(7.5 in.)
208 mm
(8.18 in.)
222 mm
(8.75 in.)
208 mm
(8.18 in.)
120S 1542 mm
(60.7 in.)
214 mm
(8.44 in.)
190 mm
(7.5 in.)
208 mm
(8.18 in.)
222 mm
(8.75 in.)
208 mm
(8.18 in.)
www.groupdynamics-laundry.com

©Published by permission of the copyright owner – DO NOT COPY or TRANSMIT
Basic Installation/Operation
9
70421501 (EN)
170 Pound Tumble Dryer Dimensions and
Exhaust Outlet Locations
Refer to Position and Level the Tumble Dryer to temporarily reduce the heights of these models.
TMB2290N
A
B
C
D
WH
F
Y
X
V
Y
TOP VIEW OF
EXHAUST
DUCT
EG
Cabinet Dimensions
ModelsABCDEFGH
170L/N/S 860 mm
(33.86 in.)
826 mm
(32.5 in.)
1289 mm
(50.75 in.)
1314 mm
(51.75 in.)
1749 mm
(68.85 in.)
1324 mm
(52.12 in.)
1349 mm
(53.12 in.)
2388 mm
(94 in.)
Exhaust Outlet Dimensions and Locations
Models V W X Y
170L/N/S 1076 mm
(42.38 in.)
171 mm
(6.75 in.)
222 mm
(8.75 in.)
178 mm
(7 in.)
www.groupdynamics-laundry.com

©Published by permission of the copyright owner – DO NOT COPY or TRANSMIT
Basic Installation/Operation
70421501 (EN)
10
Electric and Gas Connection Locations
for Gas Models
TMB2255N
AC
C
A
BD
BD
120L/N 170L/N
Models Electrical Connection Gas Connection
ABCDDiameter
120L/N 466 mm
(18.34 in.)
1977 mm
(77.84 in.)
318 mm
(12.5 in.)
1791 mm
(70.5 in.)
3/4 in. NPT
170L/N 533 mm
(21 in.)
2057 mm
(81 in.)
377 mm
(14.85 in.)
1966 mm
(77.4 in.)
1 in. NPT
NOTE: These figures are approximate dimensions only.
www.groupdynamics-laundry.com

©Published by permission of the copyright owner – DO NOT COPY or TRANSMIT
Basic Installation/Operation
11
70421501 (EN)
Electric and Steam Connection Locations
for Steam Models
fdf
TMB2256N
A1
B1
120S 170S
A2
B2
DEF
A1
B1
B2
A2
D
EF
C
C
Models Steam Inlet
Diameter A1 A2 F
120S 3/4 in. NPT 911 mm
(35.875 in.)
340 mm
(13.375 in.)
2102 mm
(82.75 in.)
170S 3/4 in. NPT 956 mm
(37.625 in.)
387 mm
(15.25 in.)
2235 mm
(88 in.)
Steam Outlet
Diameter B1 B2 D
120S 3/4 in. NPT 879 mm
(34.625 in.)
333 mm
(13.125 in.)
1740 mm
(68.5 in.)
170S 1 in. NPT 1133 mm
(44.625 in.)
222 mm
(8.75 in.)
1822 mm
(71.75 in.)
Electrical Connection
CE
120S 466 mm
(18.34 in.)
1977 mm
(77.84 in.)
170S 533 mm
(21 in.)
2057 mm
(81 in.)
www.groupdynamics-laundry.com

©Published by permission of the copyright owner – DO NOT COPY or TRANSMIT
Basic Installation/Operation
70421501 (EN)
12
Electric Connection Location for Electric
Models
TMB2336N
A
B
Models A B
120E 910 mm
(35.81 in.)
2175 mm
(85.64 in.)
www.groupdynamics-laundry.com

©Published by permission of the copyright owner – DO NOT COPY or TRANSMIT
Basic Installation/Operation
13
70421501 (EN)
Position and Level the Tumble Dryer
TMB2020N
NOTE: Shaded areas indicate adjacent structure.
113 mm (0.5 in.) recommended between machines for removal or installation.
2Allow 51-102 mm (2-4 in.) opening at top of machine to aid in removal or installation. A removable trim piece
may be used to conceal the opening; zero clearance allowed for trim.
3102 mm (4 in.) maximum header thickness
4Minimum clearance permitted for remainder: Gas 102 mm (4 in.), Steam 305 mm (12 in.)
5Guard
6Provision for Make-Up Air
7610 mm (24 in.) minimum, 914 mm (36 in.) recommended for maintenance purposes
86 mm (0.25 in.) recommended for removal or installation purposes, zero clearance allowed
Figure 1
TMB2020N
4
1
5
6
7
3
WARNING
To reduce the risk of severe injury, clearance of tumble dryer cabinet from combustible
construction must conform to the minimum clearances.
W056R1
8
2
www.groupdynamics-laundry.com

©Published by permission of the copyright owner – DO NOT COPY or TRANSMIT
Basic Installation/Operation
70421501 (EN)
14
Fire Suppression System
G
, H, K, S and U Models Only
Water Requirements
IMPORTANT: Water must be supplied to the fire
suppression system, or the fire suppression system
will not operate as intended.
Connection point to the electric water solenoid valve is
a 19 mm (3/4 inch) hose. The fire suppression system
equipped tumble dryer must be supplied with a
minimum water pipe size of 12.7 mm (1/2 inch) and be
provided with a minimum of 138 kPa (20 psi) and a
maximum of 827 kPa (120 psi) of pressure at all times.
Flowrate must be no less than, but approximately 57
liters (15 gallons) per minute.
NOTE: Water pressure under 138 kPa (20 pounds
per square inch) will cause low flow and water
leakage at water solenoid valve.
IMPORTANT: Temperature of the water supply
must be kept between 4.4° and 48.9°C (40° and
120°F). If water in the supply line or water solenoid
valve freezes, the fire suppression system will not
operate.
IMPORTANT: If temperature sensors inside the
tumble dryer register a temperature below 4.4°C
(40°F), the fire suppression system control will lock
out. This feature protects against operation of the
tumble dryer with a possible frozen water supply.
Only when the temperature sensors register a
temperature above 4.4°C (40°F) will the machine
reset for operation.
IMPORTANT: Flexible supply line/coupling must
be used. Solenoid valve failure due to hard
plumbing connections will void the warranty. It is
recommended that a filter or strainer be installed
in the water supply line.
Water Connections
Figure 2
IMPORTANT: Thread hose couplings onto valve
connections finger tight, then turn 1/4 turn with
pliers. Do not cross thread or overtighten
couplings.
IMPORTANT: Replace all hoses every five years.
NOTE: Longer inlet hoses are available (as
optional equipment at extra cost) if the hoses
supplied with the tumble dryer are not long enough
for installation. Order hoses as follows:
Part No. 20617 Inlet hose 2.44 m (8 feet)
Part No. 20618 Inlet hose 3.05 m (10 feet)
Electrical Requirements
No independent external power source or supply
connection is necessary. Power to operate the 24 Volt
fire suppression system is from the rear junction/
contactor box.
TMB2008N
1Lock
2Hose Couplings
3Y Valve
4Inlet Hoses
5Opening for Auxiliary Alarm Cable
1
2
3
2
4
5
Electrical power must be provided to
tumbler at all times. The fire suppression
system will be inoperative if the main
electrical power supply is disconnected.
W690
WARNING
www.groupdynamics-laundry.com

©Published by permission of the copyright owner – DO NOT COPY or TRANSMIT
Basic Installation/Operation
15
70421501 (EN)
Auxiliary Alarm
During tumble dryer installation, you have the option
to connect a separate alarm system to this auxiliary
output. Use of the auxiliary output is not required for
the fire suppression system to operate, but may be
used for additional protection.
NOTE: The auxiliary output is activated during
fire suppression system maintenance test sequence.
Consider this fact prior to your system test every
three months. (Example: If the external system
uses the auxiliary output to call the fire
department, inform the fire department before and
after the fire suppression system maintenance test.)
Gas Requirements
Natural Gas and Liquefied Petroleum
IMPORTANT: Any product revisions or
conversions must be made by the Manufacturer’s
Authorized Dealers, Distributors, or local service
personnel.
IMPORTANT: The tumble dryer must be isolated
from the gas supply piping system by closing its
individual manual shut-off valve during any
pressure testing of the gas supply piping system at
test pressure equal to or less than 3.45 kPa,
34.5 mbar (0.5 psi).
IMPORTANT: The tumble dryer and its manually
operated appliance gas valve must be disconnected
from the gas supply piping system during any
pressure testing of that system at test pressures in
excess of 3.45 kPa, 34.5 mbar (0.5 psi).
IMPORTANT: The installation must comply with
local codes.
NOTE: This manual is only a supplement. Refer to
installation/operation manual for full instructions.
European Gas
To reduce the risk of fire or explosion, DO
NOT CONNECT THE GAS LINE TO THE
TUMBLE DRYER IF THE GAS SERVICE IS
NOT THE SAME AS THAT SPECIFIED ON
THE TUMBLE DRYER SERIAL PLATE! It
will first be necessary to convert the gas
burner orifice and gas valve. Appropriate
conversion kits are available.
W060R1
WARNING
To reduce the risk of fire or explosion, if
the tumble dryer is to be connected to
Liquefied Petroleum (L.P.) gas, a vent to
the outdoors must be provided in the room
where the tumble dryer is installed.
W062R1
WARNING
WARNING
To reduce the risk of electric shock, fire,
explosion, serious injury or death:
• Disconnect electric power to the
tumbler before servicing.
• Close gas shut-off valve to gas tumbler
before servicing.
• Close steam valve to steam tumbler
before servicing.
• Never start the tumbler with any guards/
panels removed.
• Whenever ground wires are removed
during servicing, these ground wires
must be reconnected to ensure that the
tumbler is properly grounded.
W002
www.groupdynamics-laundry.com

©Published by permission of the copyright owner – DO NOT COPY or TRANSMIT
Basic Installation/Operation
70421501 (EN)
16
General Information
This information is to be used when installing gas
tumble dryers in countries, and/or on gases, different
than the machine’s factory configuration. Tumble
dryers are supplied from the factory for operation on
Natural Gas 8914 kcal/m3(1000 Btu/cu ft.) or L.P. Gas
22,250 kcal/m3(2500 Btu/cu ft.) in the countries of
GB/IE/PT/ES/IT/GR/LU/CH. To install machines in
any other country or on any other gas requires some
level of modification.
Models are built in two different configurations:
•Regulated Natural Gas – Injector is sized for
Natural Gas, second family, group H (E) at
20 mbar inlet pressure. Regulator/governor is
operational. Gas valve CAN be field-converted
to a non-regulating type.
•Unregulated Liquefied Petroleum (L.P.) Gas –
Injector is sized for L.P. Gas, third family, group
3+ at 28.37 mbar inlet pressure. Regulator/
governor is blocked open. Gas valve CANNOT
be field-converted to a regulating type.
Serial plates supplied from the factory are configured
for the countries of GB/IE/PT/ES/IT/GR/LU/CH.
These instructions pertain to the situations when the
country of use or gas supply is different than that on
the serial plate.
NOTE: This manual is only a supplement. Refer to
installation/operation manual for full instructions.
www.groupdynamics-laundry.com

©Published by permission of the copyright owner – DO NOT COPY or TRANSMIT
Basic Installation/Operation
17
70421501 (EN)
Gases and Configurations
Burner orifice information at 0-600 meters (0-2000 feet) altitude.
* For Natural Gas, Group E+ applications, convert using
L.P. Gas model and replace burner orifices.
** For L.P. Gas, Group B/P with 50 mbar supply pressure,
convert using Natural Gas model and appropriate burner
orifices.
Country
Code Gas Type Group
Supply
Pressure,
mbar
Burner
Orifice
Pressure,
mbar
Capacity/
Model
Diameter,
mm Quantity
Burner
Orifice
Part No.
DK/NO/
SE/FI/CZ/
EE/LV/LT/
SI/SK
Natural Gas E 20 8.9
8.0
120
170
4.8
4.8
3
4
M411372
M411372
L.P. Gas B/P 30 No Governor 120
170
2.6
3.4
3
3
M411376
M400997
DE**
Natural Gas E 20 8.9
8.0
120
170
4.8
4.8
3
4
M411372
M411372
L.P. Gas B/P 30 and No Governor or 26.4 or
50** and No Governor or 28.7
120
170
2.6
3.4
3
3
M411376
M400997
NL
Natural Gas LL 25 12.0 120
170
4.8
4.8
3
4
M411372
M411372
L.P. Gas B/P 30 No Governor 120
170
2.6
3.4
3
3
M411376
M400997
BE/FR*
Natural Gas E+ 20 or 25 No Governor* 120
170
4.2
3.8
3
4
M402995
M402997
L.P. Gas 3+ 28 or 37 No Governor 120
170
2.6
3.4
3
3
M411376
M400997
GB/IE/PT/
ES/IT/GR/
LU/CH
Natural Gas E 20 8.9
8.0
120
170
4.8
4.8
3
4
M411372
M411372
L.P. Gas 3+ 28 or 37 No Governor 120
170
2.6
3.4
3
3
M411376
M400997
AT**
Natural Gas E 20 8.9
8.0
120
170
4.8
4.8
3
4
M411372
M411372
L.P. Gas B/P 50** 26.4
28.7
120
170
2.6
3.4
3
3
M411376
M400997
CY/IS/MT L.P. Gas B/P 30 No Governor 120
170
2.6
3.4
3
3
M411376
M400997
HU
Natural Gas H 25 8.9
8.0
120
170
4.8
4.8
3
4
M411372
M411372
L.P. Gas B/P 30 No Governor 120
170
2.6
3.4
3
3
M411376
M400997
PL
Natural Gas H 20 8.9
8.0
120
170
4.8
4.8
3
4
M411372
M411372
L.P. Gas 3P 37 No Governor 120
170
2.6
3.4
3
3
M411376
M400997
Table 1
www.groupdynamics-laundry.com

©Published by permission of the copyright owner – DO NOT COPY or TRANSMIT
Basic Installation/Operation
70421501 (EN)
18
Exhaust Requirements
Make-Up Air
IMPORTANT: Do not obstruct the flow of
combustion and ventilation air.
A tumble dryer is forced air exhausted and requires
provisions for make-up air to replace the air exhausted
by the tumble dryer.
Make-up air openings with louvers will restrict air
flow. The opening must be increased to compensate
for area taken up by louvers.
If it is necessary to duct make-up air to tumble
dryer(s), increase area of ductwork by 25% to
compensate for any restriction in air movement.
Venting
Proper sized exhaust ducts are essential for proper
operation. All elbows should be sweep type. Exhaust
ducts must be assembled so the interior surfaces are
smooth to prevent the accumulation of lint.
DO NOT use plastic, thin foil or Type B flexible ducts
– rigid metal ducts are recommended. Use exhaust
ducts made of sheet metal or other noncombustible
material. Use of duct tape or pop rivets on all seams
and joints is recommended, if allowed by local codes.
Verify that old ducts are thoroughly cleaned out before
installing new tumble dryer(s).
NOTE: The ducts must be equivalent in strength
and corrosion resistance to ducts made of
galvanized sheet steel not less than 0.495 mm
(0.0195 inches) thick.
IMPORTANT: For best performance, provide an
individual exhaust duct for each tumble dryer. Do
not install a hot water heater in a room containing
tumble dryers. It is better to have the water heater
in a separate room with a separate air inlet.
NOTE: This manual is only a supplement. Refer to
installation/operation manual for full instructions.
Required Make-Up Air Opening
(to the outside) for Each Tumble Dryer
Models Opening
120 Pound 2323 cm2 (360 in2)
free air
170 Pound 3710 cm2(525 in2)
free air
Table 2
A drying tumble dryer produces
combustible lint. To reduce the risk of fire,
the tumble dryer must be exhausted to the
outdoors.
W057R1
To reduce the risk of fire and accumulation
of combustible gases, DO NOT exhaust
tumbler air into a window well, gas vent,
chimney or enclosed, unventilated area
such as an attic, ceiling, crawl space under
a building, or concealed space of a
building.
W506
WARNING
www.groupdynamics-laundry.com
This manual suits for next models
75
Table of contents
Other Group Dynamics Dryer manuals