Neptronic SKE4-N Series User manual

SKE4-E-Remote SDU Guide-190201
SKE4-E Steam Humidifier
Remote SDU Installation Guide

SKE4-E Steam Humidifier
Remote SDU Installation Guide
www.neptronic.com
Page | 2
Dimensions and Weight
A
B
Condensate
Outlet Steam
Outlet Electrical Supply
Bottom View
Illustration 1 - Remote SDU
Table 1 - Dimensions and Weight
Model
SDU
Dimensions
(mm)
Steam Outlet
SDU Weight
(kg)
A
B
Qty
Diameter
(mm)
SKE4-E05
SDU4-1
171
492
1
35
7
SKE4-E10
SKE4-E20
SDU4-2
197
565
1
35
9
SKE4-E30
SKE4-E40
SDU4-3
289
565
1
51
14

SKE4-E Steam Humidifier
Remote SDU Installation Guide
www.neptronic.com
Page | 3
Mechanical and Piping Installation
Positioning
The SDU must be installed in an environment where the air is relatively clean. This will
prevent the blower from getting clogged with dust.
The SDU must be mounted such that the SDU fan section is at least 2 m above the floor.
Allocate a minimum clearance of 0.45 m from the ceiling to avoid ceiling and wall
condensation.
If additional ventilation is not present, ensure that the fan has a clearance of at least 1.35
m from the ceiling. Proper ventilation must be observed to avoid ceiling and wall
condensation.
Remote Installation
To install the remote SDU, follow the guidelines and piping recommendations outlined below.
Mount the SDU to the wall on brackets (supplied). Do not drill mounting holes through the
cabinet of the SDU.
Connect the steam hose to the bottom inlet of the SDU and to the humidifier steam outlet
located on top of the cabinet.
Secure the steam hose with the hose clamp (supplied).
Connect the condensate hose to the bottom of the SDU and to an open drain or to the
humidifier using the knockout hole located on the top of the cabinet.
Connect the electrical wires from the SDU to the top of the humidifier. Field wiring must
conform to local codes.
The fan of the SDU will operate for a period of five minutes after steam production has
stopped to prevent condensation.
Avoid any obstruction of the ventilation openings on top of the SDU.
18''
(0.45 m)
78''
(2 m)
Field piping
(by others)
Without
additional
ventilation
54'' (1.35 m)
Field wiring
(by others)
4''
(0.10 m)
Connect condensate
hose to humidifier
(back knockout hole)
Or to open drain
Illustration 2 - Remote SDU Installation

SKE4-E Steam Humidifier
Remote SDU Installation Guide
www.neptronic.com
Page | 4
Connecting Condensate Hose to Humidifier
If connecting a condensate hose to the humidifier using the top knockout hole, remove the plug from
the open silicone pipe near the water fill valve. Then, insert a ½” fitting (not supplied) inside of the
silicone pipe and connect the end of the ½” condensate hose (not supplied) on the fitting. Use a hose
clamp (not supplied) on each end of the hose to secure the connection.
Remove the plug
Connect the condensate hose
Illustration 3 - Condensate Hose Installation

SKE4-E Steam Humidifier
Remote SDU Installation Guide
www.neptronic.com
Page | 5
Wall Mounting the Remote SDU
A
B
C
4"
(102mm)
D
E
Illustration 3 - Remote SDU Mounting Bracket
Table 2 - Remote SDU Mounting Bracket Dimensions
Model
SDU
Dimensions (mm)
A
B
C
D
E
SKE4-E05
SDU4-1
406
171
348
19
29
SKE4-E10
SKE4-E20
SDU4-2
470
191
377
25
45
SKE4-E30
SKE4-E40
SDU4-3
470
191
480
25
45

SKE4-E Steam Humidifier
Remote SDU Installation Guide
www.neptronic.com
Page | 6
Remote SDU Cover Installation (Option)
Perform the following steps to install the optional remote SDU cover:
1) Secure the two side covers onto the remote SDU mounting bracket by fastening them with 3x
M3.5 x 0.6 nuts (supplied).
2) Secure the front cover onto the remote SDU mounting bracket by fastening it with 6x M4 x 0.7
screws (supplied).
1
1
2
SDU
SDU
Mounting
Bracket
Side
Cover
Front
Cover
Side
Cover
Illustration 4 - Remote SDU Cover Installation

SKE4-E Steam Humidifier
Remote SDU Installation Guide
www.neptronic.com
Page | 7
Electrical Installation
CAUTION: Risk of electric shock. Disconnect the SDU from the electric supply
before proceeding with the connection.
The wiring to the SDU must be done by a qualified electrician and must conform to the
procedure, regulation and local codes.
Use copper conductors only.
An external over current protection must be installed on the supply, adjacent to the SDU.
It is also recommended to install a circuit breaker.
To provide strain relief to the supply cable, install a knock-out (not supplied) at the bottom
of the SDU.
Ensure that the size of the wire conductors is appropriate for the current supplied.
Ensure that each terminal connection is properly secured.
Ensure that the ground conductor is equipped with a ring terminal and is connected
directly to the electrical panel.
Table 3 - SDU Power Supply Specifications
Model
SDU
Amperage (A)
230V/1ph
400V/1ph
SKE4-E05
SDU4-1
0.2
0.1
SKE4-E10
SDU4-2
0.3
0.2
SKE4-E20
-
0.2
SKE4-E30
SDU4-3
-
0.2
SKE4-E40
-
0.2

SKE4-E Steam Humidifier
Remote SDU Installation Guide
www.neptronic.com
Page | 8
Wiring Diagrams
SDU Fan
Fuse
PD Switch
Red
Grey
Red
Red
Purple
SDURelay
Orange
Black
Blue
Power
supply
for SDU
Ground
L
N
Wiring by
others
SDU Terminal
Block
Humidifier
Terminal Block
Illustration 5 - Wiring for SDU4-1 Model at 230V (1ph)
SDU Fan
Fuse
PD Switch
Red
Black
White
Red
Grey
Transformer
Red
Green
Purple
SDURelay
Orange
Black
Blue
Power
supply
for SDU
Ground
L
N
Wiring by
others
SDU Terminal
Block
Humidifier
Terminal Block
Illustration 6 - Wiring for SDU4-2 Model at 230V (1ph) or all SDU Models at 400V (1ph)