Miele PDR 944 Electrically Heated Instruction Manual
- June 1, 2024
- Miele
Table of Contents
Miele PDR 944 Electrically Heated Instruction Manual
Installation requirements
Risk of injury or damage to property due to improper installation.
Incorrect installation of the tumble dryer can lead to personal injury or
damage to property.
It is recommended that installation and commissioning be accomplished by
Miele Service or an authorized dealer.
- The tumble dryer must be installed in accordance with all relevant regulations and standards. Observe all local codes.
- The dryer must only be operated in a room that has sufficient ventilation and which is frost-free.
- The tumble dryer must not be installed behind a closeable door or a sliding door. The maximum opening angle of the tumble dryer door must not be limited by objects or doors. It must be possible to fully open the tumble dryer door at any time.
Floor anchoring
Miele generally recommends securing both of the tumble dryer’s front screw feet to the floor with tensioning strips.
In the following cases, the tumble dryer must be secured to the floor with tensioning strips:
- when installing on a base
- on an offshore installation
Optional accessories
Only use genuine Miele spare parts and accessories with this machine. Using parts or accessories from other manufacturers may void the warranty, and Miele cannot accept liability.
Communication box
The optional communication box allows external hardware from Miele and other
suppliers to be connected to the Miele Professional machine. External hardware
includes e.g., peakload systems, pressure sensors, or an external vent flap.
The communication box is supplied with voltage by the Miele Professional
machine. The separately available set consists of the communication box and
fasteners for installation on the machine or on the wall.
XKM 3200 WL PLT
The optional Miele communication module can be used to establish a data
connection between a Miele Professional machine and a data processor in
accordance with the Ethernet or WiFi standard.
This communication module fits into the communication slot which is a standard
feature on all machines. The communication module offers the option of
intelligent app-based communication with external systems. In addition, it can
display detailed machine and program status information.
Installation notes
This module forms the basis for wired communication with Miele MOVE.
It is not possible to integrate the machine into the “ Miele@home” app
for domestic installations.
The communication module is intended exclusively for commercial use and is
supplied with voltage directly via the Miele Professional machine. No
additional power connection is required. The Ethernet interface provided via
the communication module complies with SELV (safety extra low voltage)
requirements in accordance with EN 60950. Connected external machines must
also comply with SELV.
Supply air, exhaust, and ventilation cross-sections
Supply air/exhaust air
The tumble dryer may only be operated when the ducting has been connected
properly and the room is sufficiently ventilated.
Calculating the total length and diameter of a supply-air or exhaust pipe
The length of the required ductwork and the number and shape of the elbows are
determined by the structural conditions on-site. In order to maximize the
airflow efficiency, the pipeline should be as short as possible and contain
few or minimal elbows.
The exhaust ducting must not be made from flammable materials. Otherwise
there is a risk of fire.
Use only non-flammable materials for the exhaust ducting. All local
regulations for metallic ducting must be observed. Plastic must not be used
for ventilation.
In upward exhaust ducting systems, a condensate drain must be fitted to the
bottom. The condensate must be drained via a water collection tray or a floor
drain positioned in an appropriate location.
If air is being directed from multiple appliances into a combined line
(exceptional circumstances), a non return device (non-return flap) must be
installed in each separate line to prevent backflow.
To make subsequent cleaning of the pipes easier, cleaning flaps should be
fitted to elbows wherever possible.
The on-site exhaust ducting and venting to the outdoors must be regularly
checked for lint deposits and cleaned if necessary.
Substitute duct lengths
Table 1
Type of el- bow| Type| PDR 914/514| PDR 918/518|
PDR 922/522| PDR 928/528| PDR 944/544
---|---|---|---|---|---|---
| 90° elbow r = 2d| 3′ 7 5/16″ (1.1 m)
45° elbow r = 2d| 2′ 3 9/16″ (0.7 m)
| 90° elbow r = d| 6′ 2 13/16″ (1.9 m)
45° elbow r = d| 3′ 7 5/16″ (1.1 m)
| 90° concertina duct el- r = 2d bow| 10′ 6″ (3.2 m)
45° concertina duct el- r = 2d bow| 6′ 6 3/4″ (2 m)
| 90° segmented elbow r = 2d (3 welded seams)| 3′ 11 1/4″ (1.2 m)
****| 90° elbow, Westaflex r = 2d| 3′ 11 1/4″ (1.2 m)
ducting r = 4d| 2′ 11 7/16″ (0.9 m)
45° elbow, Westaflex r = 2d| 3′ 3 3/8″ (1 m)
ducting r = 4d| 2′ 7 1/2″ (0.8 m)
| Non-return flap| 39′ 4 7/16″(12 m)| 39′ 4 7/16″(12 m)| 22′ 11 9/16″(7 m)|
22′ 11 9/16″(7 m)| 21′ 3 7/8″(6.5 m)
Maximum permissible total ducting length
Table 2
Internal minimum pipe diameter (metal ducting)| PDR x14 EL|
PDR x18 EL| PDR x22 EL| PDR x28 EL| PDR x44 EL
---|---|---|---|---|---
5 7/8″ (150 mm)| 62′ 4 1/16″(19 m)| 49′ 2 9/16″(15 m)| 39′ 4 7/16″(12 m)| 32′
9 11/16″(10 m)| 32′ 9 11/16″(10 m)
7 1/16″ (180 mm)| 164′ 1/2″ (50 m)| 124′ 8 1/16″(38 m)| 101′ 8 1/2″(31 m)| 88′
7″ (27 m)| 78′ 8 7/8″(24 m)
7 7/8″ (200 mm)| 278′ 10 7/16″(85 m)| 213′ 3 1/16″(65 m)| 173′ 10 5/8″(53 m)|
157′ 5 3/4″(48 m)| 130′ (40 m)
Permissible counter pressure in the ex- haust ducting| 0.05 psi (220
Pa)| 0.05 psi (340 Pa)| 0.05 psi (350 Pa)| 0.06 psi (410 Pa)| 0.04 psi (310
Pa)
When connected to the vent ducting through the exhaust duct of a machine, particular care must be taken to make sure the connection is secure and air- tight.
With complex ducting with many bends and additional components, or when
several different machines are connected to a shared duct, it is recommended
that a detailed pipework calculation is carried out by a qualified
specialist. The vent ducting must not be channeled into a chimney or flue
already in use for any gas-, coal-, or oil-burning installation. The warm and
moist exhaust air is to be conducted outside or to a suitable venting duct
over the shortest path possible. The vent ducting must be laid so that air
flow is not hindered. To achieve this, use as few bends as possible along with
short pipelines and well-made connections and transitions checked for air-
tightness. No filters or grilles may be fitted in the vent ducting.
The end of the vent ducting leading out into the open should be protected
against the elements, e.g., with a downward-facing 90° bend.
During tumble dryer operation, the room must be adequately ventilated.
Room ventilation opening for air intake from the setup room
The minimum dimension of the ventilation opening depends on the cross-
section of the vent duct.
| Vent duct | Minimum dimension for ventilation opening |
|---|---|
| A | |
| 6″ (150 mm) | – |
1/16″(230 mm)
–| 6″(150 mm)| 34 7/8″²(225 cm²)| 104 5/8″²(675 cm²)| 11 5/8″(295 mm)| 10
1/4″(260 mm)
7 1/16″ (180 mm)| –| 39 3/8″²(254 cm²)| 118 1/8″²(762 cm²)| 12 3/8″(315 mm)|
11″(280 mm)
–| 7 1/16″(180 mm)| 50 1/4″²(324 cm²)| 150 11/16″²(972 cm²)| 14″(355 mm)| 12
3/8″(315 mm)
7 7/8″ (200 mm)| –| 48 11/16″²(314 cm²)| 146″²(942 cm²)| 13 3/4″(350 mm)| 12
3/16″(310 mm)
–| 7 7/8″(200 mm)| 62″²(400 cm²)| 186″² (1,200 cm²)| 15 9/16″(395 mm)| 13
3/4″(350 mm)
8 11/16″ (220 mm)| –| 58 7/8″²(380 cm²)| 176 11/16″²(1,140 cm²)| 15″(381 mm)|
14 13/16″(377 mm)
–| 8 11/16″(220 mm)| 75″²(484 cm²)| 225 1/16″²(1,452 cm²)| 16 15/16″(430 mm)|
15 1/16″(382 mm)
9 13/16″ (250 mm)| –| 76 1/8″²(491 cm²)| 228 5/16″²(1,473 cm²)| 17 1/8″(435
mm)| 15 3/16″(385 mm)
–| 9 13/16″(250 mm)| 96 7/8″²(625 cm²)| 290 5/8″²(1,875 cm²)| 19 5/16″(490
mm)| 17 1/8″(435 mm)
11 3/16″ (300 mm)| –| 109 9/16″²(707 cm²)| 328 3/4″²(2,121 cm²)| 20 1/2″(520
mm)| 18 1/8″(460 mm)
–| 11 3/16″(300 mm)| 139 1/2″²(900 cm²)| 418 1/2″²(2,700 cm²)| 23 1/4″(590
mm)| 20 1/2″(520 mm)
**Exhaust connection
Example 1
Configuring vent ducting made from steel piping for the PDR 914/514 tumble
dryers:
L1, L2 : each 9′ 10″ (3 m) steel piping
B1, B2: each 90° concertina pipe elbow (r = 2d)
B3: 90° elbow (r = d) Total duct length
**
| Steel pipe | L1 = 9′ 10″ (3.0 m) |
|---|---|
| Steel pip | L2 = 9′ 10″ (3.0 m) |
| 90° concertina pipe elbow(r = 2d | B1 = 10′ 6″ (3.2 m)* |
| 90° concertina pipe elbow (r = 2d) | B2 = 10′ 6″ (3.2 m)* |
| 90° elbow (r = d) | B3 = 6′ 3″ (1.9 m*) |
| Total duct length | 46′ 11″ (14.3 m) |
Substitute duct lengths according to Table 1
Duct diameter depending on total pipe length
For the calculated total pipe length of 46′ 11″ (14.3 m) for a PDR 914/514, a
minimum duct diameter of 6″ (150 mm) is specified for the exhaust ducting
according to Table 2.
Example 2
Common combined exhaust ducting for multiple appliances should only be considered as a solution in exceptional cases.
Configuring combined exhaust ducting made from steel for the PDR 914/514 and PDR 918/518 series tumble dryers:
| L1–L4 | each 6′ 6″ (2 m) steel piping |
|---|---|
| B1–B3 | each 90° concertina pipe elbow (r = 2d) |
| B4 | 45° elbow (r = 2d) |
| B5 | 90° elbow (r = d) |
If the exhaust from multiple appliances is to be ducted into a combined
line, a non-return device must be installed in each separate line to prevent
backflow. Total pipe length PDR 914/514
| Steel pipe | L1 = 6′ 6″ (2.0 m) |
|---|---|
| Steel pipe | L2 = 6′ 6″ (2.0 m) |
| Steel pipe | L4 = 6′ 6″ (2.0 m) |
| 90° concertina pipe elbow (r = 2d) | B1 = 10′ 6″ (3.2 m) |
| 90° concertina pipe elbow (r = 2d) | B2 = 10′ 6″ (3.2 m)* |
| 90° elbow (r = d | B5 = 6′ 3″ (1.9 m*) |
| Total duct length | 46′ 11″ (14.3 m) |
Substitute pipe lengths according to Table 1
Pipe diameter depending on total pipe length Total pipe length = 46′ 11″
(14.3 m)
Maximum permissible total pipe length 62′ 4″ (19 m) = Ø 6″ (150 mm)
internal pipe diameter (see Table 2)
Total pipe length PDR 918/518
| Steel pipe | L3 = 6′ 6″ (2.0 m) |
|---|---|
| Steel pipe | L4 = 6′ 6″ (2.0 m) |
| 90° concertina pipe elbow (r = 2d) | B3 = 10′ 6″ (3.2 m)* |
| 45° elbow (r = 2d) | B4 = 2′ 3″ (0.7 m)* |
| 90° elbow (r = d) | B5 = 6′ 2″ (1.9 m)* |
| Total duct length | 32′ 1 13/16″ (9.8 m) |
- Substitute pipe lengths according to Table 1
Pipe diameter depending on total pipe length
Total pipe length = 32′ 1 13/16″ (9.8 m) (PDR 918/518)
Maximum permissible total pipe length 49′ 2″ (15 m) = Ø 6″ (150 mm) internal
pipe diameter (see Table 2)
Total duct diameter
According to Table 3
| Duct diameter PDR 914/514 | Ø 6″ (150 mm) = 27 3/8″² (177 cm²) |
|---|---|
| Duct diameter PDR 918/518 | Ø 6″ (150 mm) = 27 3/8″² (177 cm²) |
| Total cross section A | = 54 13/16″² (354 cm²) |
| Total duct diameter | = Ø 8 11/16″ (220 mm) |
Example 3
Configuring exhaust ducting and a supply pipe made from steel for the PDR
914/514 series tumble dryer:
| L1, L2: | each 6′ 6″ (2.0 m) steel piping |
|---|---|
| L3: | 8′ 2″ (2.5 m) steel piping |
| B1, B2: | 90° concertina pipe elbow for each |
| B3, B4: | 90° elbow (r = d) for each |
Total duct length
| Steel pipe | L1 = 6′ 6″ (2.0 m) |
|---|---|
| Steel pipe | L2 = 6′ 6″ (2.0 m) |
| Steel pipe | L3 = 8’2″ (2.5 m |
| 90° concertina pipe elbow | B1 = 10′ 6″ (3.2 m)* |
| 90° concertina pipe elbow | B2 = 10′ 6″ (3.2 m)* |
| 90° elbow (r = d) | B3 = 6′ 3″ (1.9 m*) |
| 90° elbow (r = d) | B4 = 6′ 3″ (1.9 m*) |
| Total duct length | 54′ 9 1/2″ (16.7 m) |
Substitute pipe lengths according to Table 1
Pipe diameter depending on total pipe length
For the calculated total pipe length of 54′ 9″ (16.7 m) for a PDR 914/514,
a minimum pipe diameter of 6″ (150 mm) i s specified for the exhaust
ducting and supply pipe according to Table 2.
Configuring the room ventilation opening
Rooms in which rotary irons and tumble dryers are operated must have an
induced ventilation system (e.g., ventilation slots in windows and doors, wall
openings with grilles, or opened windows or skylights).
For example 1
A duct diameter of 6″ (150 mm) was specified in example 1. According to this
duct diameter, a room ventilation opening with a size of 17′ 5″ (531 cm) is
required. The edge length is 9 1/16″ (230 mm) (see Table 3).
For example 2
A total duct diameter of 8 11/16″ (220 mm) was specified. According to this
duct diameter, a room ventilation opening with a size of 37′ 4″ (1,140 cm) is
required. The edge length is 14 13/16″ (377 mm) (see Table 3).
For example 3
Since in this case the tumble dryer is connected to a central air supply,
additional ventilation openings are not needed.
Dimensions
Screw foot
Installation
- Electrical connection
- Connection for equipotential bonding
- Exhaust duct
- Connection for communication module
- Connection for communication box
- Communication box (optional) For setting up a connection with external systems
**Floor anchoring
**
Drill hole/anchor point
Possible voltage options
208/240 V 60 Hz 3 Ph
| Power source | 208/240 V |
|---|---|
| 60 Hz | |
| 3 Ph | |
| Total amps | 100.9 A |
| Maximum fuse rating (time-delay fuse) | 150 A |
| Minimum current | 126.1 A |
440/480 V 60 Hz 3 Ph
Power source| 40/480 V
| 60 Hz
| 3 Ph
Total amps| 54.6 A
Maximum fuse rating (time-delay fuse)| 70 A
Minimum current| 68.3 A
Exhaust air
Airflow rate| 990 m³/h
Maximum permitted pressure loss| 0.04 psi (260 Pa)
Maximum exhaust air temperature| 175°F (80°C)
Maximum evaporation rate 83.7 lb/h (38 kg/h)| 83.7 lb/h (38 kg/h)
Exhaust air connector on machine side| 6″ (DN 150)
As relative humidity inside the exhaust ducting can be as high as 100%,
suitable measures must be taken to prevent a backflow of condensate into the
machine
Supply air
Standard connection: air intake from installation site|
Recommended free air intake cross-section into the room: (equivalent to 3
times the exhaust air cross-section of a machine).| 146 sq. in. (942 cm²)
There must be sufficient air intake to the installation site to match the air
outlet volume.
Alternative connection: air intake connection directly from outdoors
Connection sleeve on machine side (internal diameter)| 6 5/16″ (161 mm)
Connection pipe provided on site (external diameter)| 6 5/16″ (160 mm)
Removing the protective cover exposes live parts. For safety reasons, a pipe
must be installed from the tumble dryer’s central fresh air intake (over a
minimum length of 35 7/16″ (900 mm)) and secured with 2 screws.
Equipotential bonding
Connection with male thread| 10 × 35 mm
Washers and nuts| M10
Accessories for equipotential bonding are not supplied and need to be ordered
separately.
APDR 002 communication box (optional accessory)
| Electrical connection | ~ 200–240 V, 50/60 Hz |
|---|---|
| Net heigh | 9 9/16″ (243 mm) |
| Net width | 11 3/4″ (298 mm) |
| Net depth | 3 3/4″ (96 mm) |
| Gross height (including packaging) | 5 11/16″ (145 mm) |
| Gross width (including packaging) | 11 1/2″ (292 mm) |
| Gross depth (including packaging) | 23 7/16″ (595 mm) |
| Net weight | 7.5 lb (3.4 kg) |
| Gross weight (including packaging) | 8.274 lb (3.75 kg) |
Machine data
Machine width, total| 47 1/2″ (1,206 mm)
Machine height, total| 64 9/16″ (1,640 mm)
Machine depth, total| 54 1/2″ (1,384 mm)
Niche width| 61″ (1,550 mm)
Minimum wall spacing (up to the back edge of the lid)| 19 11/16″ (500 mm)
Packaging width| 54 3/4″ (1,390 mm)
Packaging heigh| 69 1/2″ (1,766 mm)
Packaging depth| 58 1/16″ (1,474 mm)
Maximum gross volume| 956 gal (3,618.3 L)
Maximum gross weight| 774 lb (337.4 kg)
Maximum net weight| 704 lb (319.3 kg)
Maximum floor load in operation| 3,780 N
Diameter of exhaust duct| 5 7/8″ (150 mm)
Drum diamete| 43 5/16″ (1,100 mm)
Diameter of drum opening| 20 1/2″ (520 mm)
Drum depth| 34 1/2″ (876 mm)
Drum volume| 211 gal (800 L)
Door opening diameter| 20 1/2″ (520 mm)
Maximum door opening angle| 180°
Emission sound pressure level| 63 dB(A) re 20 µPa
Sound power leve| 72 dB(A)
Average heat dissipation rate into the room| 4 MJ/h
Permissible ambient temperature range during use| 36-104°F (2–40°C)
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