Neptronic SKE4-N02 Manual

SKE4-N-ESL-180306
Steam Humidifier
SKE4-N Series
Installation Instructions and User Manual
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SKE4-N Steam Humidifier
Installation Instructions and User Manual
www.neptronic.com
Page | i
Foreword
Neptronic Company Overview
Founded in 1976, we’re a private corporation that designs, manufactures and distributes products for the HVAC industry.
Our product line includes intelligent controllers, electronic actuators, actuated valves, humidifiers and electric heaters.
Our products are designed and manufactured by over 250 dedicated employees in our 7,500 m2(80,000 ft2) state-of-the-
art facility located in Montreal, Canada. Using a vertical integration model, our entire manufacturing chain is under one
roof, from software and hardware development, to SMT circuit board assembly, to sheet metal fabrication, to product
testing, ensuring that our products are engineered to last.
We currently hold several national and international patents and with our continued commitment to research and
development, we provide innovative products and technologies for the ever-evolving challenges of the HVAC industry.
Exporting over 70% of our sales, we have an exclusive distribution network around the globe that provides comprehensive
solutions to our worldwide customers.
About the Manual
These installation and operation instructions have been developed to facilitate the installation of the Steam Humidifier.
The strict application of these instructions will ensure the conformity of your installation and operation as per
the manufacturer's recommendations.
The application of these instructions is one of the conditions for the application of the warranty.
The application of these instructions does not ensure, at any time conformity to procedures, regulation or local
codes, regarding electric installation and connection to local water supply.
This product has been declared to conform to the applicable Canadian and American safety standards and directives and
bear the ETL (c) & (us) mark. The Certificate for ETL is available, upon request to the manufacturer.
2018©: All rights reserved. This document cannot be reproduced totally or partially by any means whether, electronic,
mechanical, photocopy, recording or other, without prior written authorization of Neptronic.
Electricity
All work concerned with electrical installation MUST only be performed by skilled and qualified
technical personnel, such as an electrician or a technician with appropriate training. The customer
is always responsible for ensuring the suitability of the technical personnel.
Please observe the local regulations concerning the provision of electrical installations.
Correct Use
Neptronic systems and its products are designed only for humidification use. Any other application is not considered
appropriate for the intended purpose. The manufacturer cannot be made liable for any damage resulting from incorrect
use.
General Warranty
This product is subject to the terms and conditions described at http://www.neptronic.com/Sales-Conditions.aspx.

SKE4-N Steam Humidifier
Installation Instructions and User Manual
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Page | ii
Handling and Lifting
Lifting or handling MUST be carried out by trained and qualified personnel. Ensure that the lifting
operation has been properly planned, assessed for risk and that the equipment has been checked by
a competent Health & Safety representative, and effective control measures are in place.
It is the customer’s responsibility to ensure that the operators are trained in handling heavy goods and
to enforce the relevant lifting regulations.
The Steam Humidifier MUST be handled and lifted with care at all times and remain in its original
packaging for as long as possible, prior to installation.
The Steam Humidifier package may be carried using a forklift from the underside. Exercise caution
before lifting to ensure that the load is balanced.
Unpacking
The Steam Humidifier is shipped inside carton boxes or in a wooden crate. Remove packing and skids prior to
commissioning. Contents
Handling and Lifting..............................................................................................................................................................ii
Overview.................................................................................................................................................................................. 4
List of Accessories Supplied................................................................................................................................................4
Available Options.................................................................................................................................................................4
Description of Systems........................................................................................................................................................ 4
Visual Overview ...................................................................................................................................................................5
Standard Humidifier Unit...................................................................................................................................................... 6
Dimensions and Weight...................................................................................................................................................6
Humidifier with Space Distribution Unit................................................................................................................................7
Humidifier with Space Distribution Unit - Dimensions and Weight ..................................................................................7
Weather Proof Enclosure.....................................................................................................................................................8
Weather Proof Enclosure - Dimensions and Weight........................................................................................................8
Output and Power Consumption - Humidifier...................................................................................................................... 9
Mechanical Installation..........................................................................................................................................................10
General Recommendations...............................................................................................................................................10
Location.......................................................................................................................................................................... 10
Positioning......................................................................................................................................................................11
Wall Mounting.................................................................................................................................................................12
Positioning - Humidifier with SDU...................................................................................................................................... 15
Maintenance of the SDU................................................................................................................................................15
Positioning and Mounting - Weather Proof Enclosure Unit ............................................................................................... 16
General Recommendations ...........................................................................................................................................16
Steam Dispersion System .................................................................................................................................................17
Steam Dispersion System Selection..............................................................................................................................17
Positioning S.A.M. and S.A.M.E2 ..................................................................................................................................19

SKE4-N Steam Humidifier
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Placement of Steam Pipe in Horizontal Duct................................................................................................................. 20
Placement of Steam Pipe in Vertical Duct..................................................................................................................... 21
Steam Output Connections ...................................................................................................................................................22
Installation..........................................................................................................................................................................22
General Recommendations............................................................................................................................................... 22
S Trap Installation on the Steam Line............................................................................................................................23
Position of Steam Outputs.................................................................................................................................................24
Remote Installation - Humidifier with SDU ........................................................................................................................25
Plumbing Connections ..........................................................................................................................................................26
Water Supply Connections ................................................................................................................................................ 28
Water Drain Connections...................................................................................................................................................29
Weather Proof Enclosure Plumbing Connection............................................................................................................... 29
Water Drain Valve..........................................................................................................................................................30
Electrical Connections...........................................................................................................................................................31
Low Voltage Control Connections .....................................................................................................................................32
Printed Circuit Board......................................................................................................................................................32
Safety Contact Connections...........................................................................................................................................33
Dry Contacts...................................................................................................................................................................33
ON/OFF Humidifier ........................................................................................................................................................34
Modulating Humidifier ....................................................................................................................................................35
Network Communication................................................................................................................................................37
Controls Placement (Steam Dispersed into a Duct or AHU) .........................................................................................38
Controller Configuration ........................................................................................................................................................39
Control Panel Features......................................................................................................................................................39
Idle Screen......................................................................................................................................................................... 40
Menu Access ..................................................................................................................................................................... 40
Menu Navigation and Configuration .................................................................................................................................. 41
Menu - General ..............................................................................................................................................................42
Menu - User....................................................................................................................................................................44
Menu - Service...............................................................................................................................................................44
Menu - Installation..........................................................................................................................................................45
Menu - Integration.......................................................................................................................................................... 47
List of Alarms.....................................................................................................................................................................49
Start-up Procedure................................................................................................................................................................50
Initial Verification................................................................................................................................................................50
Start-Up..............................................................................................................................................................................51
Service................................................................................................................................................................................... 52
Cleaning the Evaporation Chamber...................................................................................................................................52
Troubleshooting.....................................................................................................................................................................56
Notes .....................................................................................................................................................................................57

SKE4-N Steam Humidifier
Installation Instructions and User Manual
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Page | - 4 -
Overview
List of Accessories Supplied
The following accessories are supplied with the SKE4 Steam Humidifier:
2 sets of keys.
2 adjustable collars per steam outlet for the connection of the steam hose.
1 hydraulic female compression fitting ¾” (DN20) for the drain output of the evaporation chamber.
1 hydraulic female elbow fitting ½” (DN15) for the drain output of the drip pan.
1 NPT fitting ½” (DN15) for the water supply connection.
2 brackets and screws for wall mounting the humidifier (models SKE4-N02 to SKE4-N60 only).
1 Installation Instructions and User Manual.
Available Options
The following options are available when purchasing a SKE4 humidifier:
Modulating control humidifier (Suffix M, i.e. SKE4-N20M)
Humidifier for a system supplied with Deionized water or Reverse Osmosis water, having more than 0.0625
ppm of dissolved solids (Suffix D)
Space Distribution Unit mounted on humidifier (SDU) or remotely installed (SDU-REM)
Weather proof enclosure (Suffix W)
BACnet Network Communication System (Suffix B)
Ethernet (IP) option (Suffix E)
Stainless steel humidifier cabinet (Suffix P)
Description of Systems
System
Description
Evaporation Chamber
Removable metallic container in which steam is produced. It is the most
important part of the humidifier.
Space Distribution Unit (SDU)
Integrated steam distribution unit to humidify air when there is no duct
system. Optional feature available for certain humidifier models.
Multi-Steam System
Custom made system for steam distribution. This system is designed for
applications where absorption distances are very short (less than 3 feet or
900 mm).
Steam Absorption Manifold
(S.A.M.)
Steam manifold adapted to air duct size. Allows steam absorption for
relatively short distance applications (less than 5 feet or 1500 mm).
Steam Absorption Manifold with
2 Eyelets (S.A.M.E2)
Steam manifold with two eyelets, adapted for applications with restricted air
duct dimensions. Allows steam absorption for relatively short distance
applications (less than 5 feet or 1500 mm).

SKE4-N Steam Humidifier
Installation Instructions and User Manual
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Page | - 5 -
Visual Overview
Controller
Access panel to
high voltage
compartment
Evaporation
chamber
Rail guide
Steam
outlet
Heating
element
connectors
Water level
sensor
Water
inlet
Illustration 1 - Overview of the Humidifier (Left Side)
Access door to
low voltage
compartment
Printed circuit
board
Disconnect
switch
Illustration 2 - Overview of the Humidifier (Right Side)

SKE4-N Steam Humidifier
Installation Instructions and User Manual
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Page | - 6 -
Standard Humidifier Unit
B
A
C
Illustration 3 - SKE4 Steam Humidifier
Dimensions and Weight
Table 1 - Dimensions and Weight
Model
Dimensions of the Cabinet (inch) [mm]
A
B
C
Weight (lb) [kg]
Empty
Full
SKE4-N02
SKE4-N04
SKE4-N06
23 [584]
19 ⅜[492]
13 ¾ [349]
71 [32]
85 [39]
SKE4-N10
SKE4-N14
SKE4-N16
SKE4-N20
SKE4-N30
32 [813]
22 ¼ [565]
15 ⅛ [384]
107 [49]
152 [69]
SKE4-N20 L
SKE4-N40
SKE4-N50
SKE4-N60
32 [813]
33 ¼ [845]
15 ⅛[384]
143 [65]
233 [106]
SKE4-N30 X
SKE4-N40 X
SKE4-N70
SKE4-N80
SKE4-N90
48 [1219]
33 [838]
24 ⅜[619]
320 [145]
444 [200]

SKE4-N Steam Humidifier
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Page | - 7 -
Humidifier with Space Distribution Unit
B
C
A
E
D
SDU
Space
Distribution
Unit (option)
Steam
Humidifier
Illustration 4 - Steam Humidifier with Space Distribution Unit
Humidifier with Space Distribution Unit - Dimensions and Weight
Table 2 - Dimensions and Weight of SDU
Model
Dimensions of the Cabinet (inch) [mm]
SDU
(lb) [kg]
A
B
C
D
E
Weight (lb) [kg]
Empty
Full
SKE4-N02
SKE4-N04
SKE4-N06
23 [584]
19 ⅜
[492]
13 ¾
[349]
6 ¾ [171]
29 ¾
[755]
86 [39]
100 [45]
SDU-1
15 [7]
SKE4-N10
SKE4-N14
SKE4-N16
32 [813]
22 ¼
[565]
15 ⅛
[384]
7 ¾ [197]
39 ¾
[1010]
127 [58]
172 [78]
SDU-2
20 [9]
SKE4-N20
SKE4-N30
32 [813]
22 ¼
[565]
15 ⅛
[384]
11 ⅜
[289]
43 ⅜
[1102]
137 [62]
182 [83]
SDU-3
30 [14]

SKE4-N Steam Humidifier
Installation Instructions and User Manual
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Page | - 8 -
Weather Proof Enclosure
Steam Outlet
Main Drain ¾” (DN20)
Pan Drain ¾” (DN20)
Power Supply
(Knockout Hole)
Electrical Control
(Knockout Hole)
Heat Sinks
(for Modulating
Units only)
Alphanumeric
Display Window
A
B
C
Illustration 5 - Weather Proof Enclosure
Weather Proof Enclosure - Dimensions and Weight
Table 3 - Weather Proof Enclosure: Dimensions and Weight
Model
Dimensions of the Cabinet (inch) [mm]
A
B
C
Weight (lb) [kg]
Empty
Full
SKE4-N02
SKE4-N04
SKE4-N06
36.5 [927]
25.9 [658]
14.8 [376]
100 [45]
115 [52]
SKE4-N10
SKE4-N14
SKE4-N16
SKE4-N20
SKE4-N30
41 ⅛[1045]
29.8 [757]
15 ⅛[384]
130 [59]
175 [80]
SKE4-N20 L
SKE4-N40
SKE4-N50
SKE4-N60
41 ⅛[1045]
40.8 [1036]
15 ⅛[384]
195 [89]
285 [129]
SKE4-N30 X
SKE4-N40 X
SKE4-N70
SKE4-N80
SKE4-N90
55.8 [1417]
38 [965]
28.6 [727]
405 [184]
529 [240]

SKE4-N Steam Humidifier
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Page | - 9 -
Output and Power Consumption - Humidifier
Table 4 - Output and Power Consumption
Model
Steam
Consumption
Steam Output
Capacity
(lb/hr)
[kg/hr]
Power
(kW)
Amperage (A)
Qty
Diameter
(inch)
[mm]
120/1
240/1
208/1
208/3
480/1
480/3
600/1
600/3
SKE4-N02
6 [2.7]
2
17
8.5
10
-
4.5
-
3.5
-
1
1 ⅜ [35]
SKE4-N04
12 [5.5]
4
-
17
19
11.5
8.5
5
7
4
1
1 ⅜ [35]
SKE4-N06
18 [8]
6
-
26
30
16.5
13
7.2
10.5
6
1
1 ⅜ [35]
SKE4-N10
30 [14]
10
-
-
-
28
-
12
-
10
1
1 ⅜ [35]
SKE4-N14
40 [19]
13.5
-
-
-
38
-
16.5
-
13.5
1
1 ⅜ [35]
SKE4-N16
48 [21.8]
16
-
-
-
45
-
-
-
16
1
2 ⅛ [54]
SKE4-N20
60 [28]
20
-
-
-
-
-
25
-
20
1
2 ⅛ [54]
SKE4-N30
90 [41]
30
-
-
-
-
-
36
-
30
1
2 ⅛ [54]
SKE4-N20 L
60 [28]
20
-
-
-
56
-
-
-
-
1
3 [76]
SKE4-N40
120 [56]
40
-
-
-
-
-
50
-
40
1
3 [76]
SKE4-N50
150 [68]
50
-
-
-
-
-
60
-
50
1
3 [76]
SKE4-N60
180 [82]
60
-
-
-
-
-
72
-
60
1
3 [76]
SKE4-N30 X
90 [41]
30
-
-
-
83.4
-
-
-
-
1
3 [76]
SKE4-N40 X
120 [56]
40
-
-
-
111
-
-
-
-
1
3 [76]
SKE4-N70
210 [95]
70
-
-
-
-
-
84
-
70
1
3 [76]
SKE4-N80
240 [108]
80
-
-
-
-
-
96
-
81
2
3 [76]
SKE4-N90
270 [122]
90
-
-
-
-
-
109
-
91
2
3 [76]
WARNING: For Modulating Humidifier, maintain the maximum power of the electrical
installations according to the information in Table 4 - Output and Power Consumption.
Do not consider a possible reduction of steam output due to modulation.

SKE4-N Steam Humidifier
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Page | - 10 -
Mechanical Installation
General Recommendations
WARNING: Risk of electric shock. Disconnect the appliance from electric supply before
commencing installation.
Note: Mechanical installation must conform to local codes and regulations.
Location
WARNING: The SKE4 series is designed for indoor installation only.
For outdoor installation, the SKE4 must be installed using a Neptronic weather proof enclosure
(see Positioning and Mounting - Weather Proof Enclosure Unit on page 16).
Failure to follow these guidelines will void the warranty.
Consider the following points before deciding the location for the SKE4 Steam Humidifier:
Plan a location that is easy to access and permits an easy inspection and servicing of the humidifier.
Do not install the humidifier where failure of the appliance could cause damage to the building structure or to
other expensive equipment.
Ensure that the location is well ventilated and that the ambient temperature is less than 86°F (30°C).
Consider the total steam line length between the humidifier and the steam distributor based on the steam line
material type:
oFor flexiblesteam hose, total steam line must not exceed 16 feet (5 meters). For longer distances, use
insulated hard piping.
oFor insulated hard piping, the total steam line is determined by the humidifier capacity: one equivalent foot
for each lb/hr capacityof the humidifier (0.67m for each kg/hr), with a maximum of 50 feet (15 m).For
longer steam line runs, consult factory.

SKE4-N Steam Humidifier
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Positioning
Ensure that the front panel, the left side (plumbing compartment) and the right side (electrical compartment)
are accessible in order to permit servicing.
Leave a clearance of at least 48” (1.2 m) to the front panel and 12” (0.3 m) on the left and right sides of the
humidifier.
Leave a clearance of at least 20” (0.5 m) on top of the humidifier.
For models SKE4-N02 to SKE4-N60:
oMount the humidifier at a minimum height of 24” (0.6 m) above floor level.
oLeave a clearance of at least 10” (0.25 m) under the humidifier for installation of water supply, drain
piping and electrical connections.
For models SKE4-N30 X to SKE4-N90:
oThese models are designed to be installed directly on the floor. Adjustable legs are provided in order
to ensure proper level.
oProvide a level, solid foundation and ensure that the floor beneath the humidifier is water proof to
withstand any water spillage during servicing or in the event of a problem.
Illustration 6 - Positioning the Humidifier

SKE4-N Steam Humidifier
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Wall Mounting
CAUTION: Risk of malfunction. The humidifier must be placed at an equal level.
CAUTION: Risk of overheating. Do not block the ventilation openings located on the cabinet.
Before proceeding, check the strength of the chosen support or wall (brick, concrete, stud partition wall) on which the
humidifier will be mounted. See the Dimensions and Weight section (page 6) to know the weight of the unit.
Illustration 7 - Mounting Bracket Positioning
Table 5 - Positioning Lines of Mounting Brackets
Model
Dimensions (inch) [mm]
A
B
C
D
E
SKE4-N02
SKE4-N04
SKE4-N06
23 [584]
19 ⅜[492]
18 ⅜[467]
18 ⅜[467]
7/8 [22]
SKE4-N10
SKE4-N14
SKE4-N16
SKE4-N20
SKE4-N30
32 [813]
22 ¼ [565]
21 ¼ [540]
21 ¼ [540]
7/8 [22]
SKE4-N20 L
SKE4-N40
SKE4-N50
SKE4-N60
32 [813]
33 ¼ [845]
28 ¼ [718]
21 ¼ [540]
7/8 [22]
Note: Models SKE4-N30X to SKE4-N90 cannot be wall mounted and must be properly secured to the
ground using the adjustable legs.

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To wall mount the humidifier, perform the following steps:
1. Place the top bracket (supplied) on the support or wall as per the dimensions specified in Table 5 - Positioning
Lines of Mounting Brackets.
2. Drill 4 screws (not supplied) into the slotted holes of the top bracket, to secure the bracket to the support or
wall.
3. Place the bottom bracket (supplied) on the support or wall as per the dimensions specified in Table 5 -
Positioning Lines of Mounting Brackets.
4. Drill 4 screws (not supplied) into the slotted holes of the bottom bracket, to secure the bracket to the support
or wall.
Illustration 8 - Mounting Bracket Attachment

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5. Secure the humidifier to the top bracket, by placing the back inserts into the open slots located on the edge of
the center of the top bracket.
Illustration 9 - Top Mounting Bracket Connection
6. Open the front door of the humidifier to gain access to the slotted holes located in the back of the cabinet.
Verify that the holes are aligned with the ones located in the center of the bottom bracket.
7. From inside the humidifier, drill 2 (models SKE4-N02 to N30) or 4 (models SKE4-N20L to N60) screws
(supplied) into the center of the bottom bracket, in order to secure the humidifier to the support or wall.
Illustration 10 - Bottom Mounting Bracket Connection

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Positioning - Humidifier with SDU
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 humidifier must be mounted such that the SDU fan section is at least 78” (2 m) above the floor.
Allocate a minimum clearance of 18” (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 54” (1.35 m) from the
ceiling. Proper ventilation must be observed to avoid ceiling and wall condensation.
Illustration 11 - SDU Mounted on Humidifier
Maintenance of the SDU
Clean the blower if there is an accumulation of dust.

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Page | - 16 -
Positioning and Mounting - Weather Proof Enclosure Unit
12" (30cm)
minimum
42" (107cm)
minimum
12" (30cm)
minimum
20" (51cm)
minimum
Illustration 12 - Weather Proof Enclosure Unit
General Recommendations
Plan a location that is easy to access and permits an easy inspection and servicing of the humidifier.
Do not install the humidifier where failure of the appliance could cause damage to the building structure or to
other expensive equipment.
Maintain the following minimum clearances while installing to enable access for inspection and servicing.
Side
Minimum Clearance
Top
20’’ (51 cm)
Both sides
12’’ (30 cm)
Front
42’’ (107 cm)
The humidifier is designed to be installed directly on the floor/roof or a curb.
Provide a level, solid foundation for the humidifier.
Ensure that the floor/roof beneath the humidifier is water proof to withstand any water spillage during servicing
or if a problem occurs.
Attach the SKE4 enclosure securely and safely.

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Page | - 17 -
Steam Dispersion System
Steam Dispersion System Selection
In order to prevent the accumulation of condensation in air ducts, Neptronic has designed four basic configurations of
steam distribution systems to provide the most economical solution for any particular application.
Steam Absorption Manifold (S.A.M.) Horizontal Duct
The S.A.M. system is suitable for installations where absorption distances are short, less than 5 feet (1500 mm), and/or
low duct temperatures are in effect.
Illustration 13 - Steam Absorption Manifold (S.A.M) Horizontal Duct
Steam Absorption Manifold (S.A.M.E2) Horizontal Duct
The S.A.M.E2 system is suitable for installations where absorption distances are short, less than 5 feet (1500 mm), and/or
low duct temperatures are in effect. S.A.M.E2 are used in applications with restricted duct dimensions.
Illustration 14 - Steam Absorption Manifold (S.A.M.E2) Horizontal Duct
air
900
air

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Steam Absorption Manifold (S.A.M. or S.A.M.E2) Vertical Duct
S.A.M. or S.A.M.E2 systems for vertical ducts are used when the absorption distances are normal and the requirement is
for an economical and efficient solution.
Illustration 15 - Steam Absorption Manifold (S.A.M. or S.A.M.E2) Vertical Duct
Multi-Steam System
The Multi-Steam system is used in critical locations in air handling systems, particularly where absorption distances are
very short, less than 3 feet (900 mm), or where low air duct temperatures are present. The Multi-Steam is custom made to
the dimensions of the duct or AHU.
Instructions to install the Multi-Steam system are described in a specific installation instructions manual enclosed with the
Multi-Steam system.
Illustration 16 - Multi Steam System
S.A.M.
S.A.M.E2.
45°
45° 45°
air
air
air

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Positioning S.A.M. and S.A.M.E2
Duct Mounting
The steam manifold must be mounted and secured through the side of the air handling unit or duct. Ensure that provisions
are made for safe accessibility, ideally with an observation light and window. Ensure that the construction of the duct wall
is suitable enough to support the steam pipe for the duration of the installation life.
The dimension of the hole size in the duct must be as follows:
Steam Manifold Ø
Hole Size ØA
1 ⅜’’ (35 mm)
2’’ (51 mm)
2 ⅛’’ (54 mm)
3’’ (76 mm)
Illustration 17 - Duct Hole Dimensions and Minimum Distance
WARNING: Risk of condensation. Ensure that the minimum distance at the end of the manifold
is at least 4" (102 mm) from the top of the duct.
Recommendation for S.A.M. Distribution Pipes
Table 6 - Recommendation for S.A.M. Distribution Pipes
Model
Max Capacity
Distribution Pipes
Max Static
Pressure
lb/hr
kg/hr
Qty
Diameter
(in) [mm]
Min
Length
(in) [mm]
Max
Length
(in) [mm]
in. of
water
Pa
SKE4-N02
6
2.7
1
1 ⅜ [35]
12 [300]
24 [600]
5
1245
SKE4-N04
12
5.5
SKE4-N06
18
8
SKE4-N10
30
14
24 [600]
48 [1200]
SKE4-N14
40
19
SKE4-N16
48
22
2 ⅛ [54]
SKE4-N20
60
28
SKE4-N30
90
41
SKE4-N20 L
60
28
2
32 [800]
64 [1600]
SKE4-N40
120
56
SKE4-N50
150
68
3
SKE4-N60
180
82
For higher static pressure, contact the manufacturer.
Note: A steam header having an inlet of 3’’ (76 mm) and two or three outlets of 2 ⅛’’ (54 mm) is
required when using S.A.M. steam manifolds for models SKE4-N20L to SKE4-N60 (purchased
seperately).
5'’
(120mm)
5'’
(120mm)
ØA
4'’ minimum
(102mm)