Installation Guide

mr
.
steam
®
Installation, Operation & Maintenance Manuals
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I N S T A L L E R
13
EL E CT R IC A L CH A RT
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Vol Max Room Wire Size
Model No.
(Cu. Ft.*)
KW
Volts
†
Phase Amps
(AWG) for 25˚ C
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208 1 97 1
MX4E
678
20 3 56 4
240 1 84 3
3 48 6
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208 1 116 1/0
MX5E
822
24 3 67 4
240 1 100 1
3 58 6
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208 1 145 3/0
MX6E
964
30 3 84 2
240 1 125 2/0
3 73 3
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* See page 6 for room sizing
†
All specifications shown are for 208V and 240V.
Consult factory for other voltage specifications.
Transformer
Transformer
Circuit Board
Water Feed
Solenoid
Water
Inlet
Liquid
Level Probe
Plug and Play
Connection
Fuses
Contactors
Power Block
Steam
Outlet
Safety
Valve
Power
Supply
Knock-Out
All drawings are for illustrative purposes only
ELECTRICAL
Applies to 1-9
1. Never use damaged equipment, doing so may result in an
inoperative or hazardous installation.
2. All electrical wiring installation to be performed by a qualified
licensed electrician in accordance with National Electrical
Code and Local Electrical Code.
3. Connect electrical power supply to the power block only.
Do not connect power supply directly to elements.
Connecting power directly to the elements may result in a
dry fire and result in elevated temperatures and a fire hazard.
4. For 208V units do not apply more than 218V service.
5. Use minimum 90˚ C/300V rated insulated copper conductors
only, sized in accordance with National Electrical Code and
Local Electrical Code for the current in Ampere Chart. If
allowed by codes, NM cable may require a larger wire size
than as listed on the chart.
6. Connect suitably sized equipment grounding wire to ground
terminal provided. Neutral (white) wire is not required for
208V and 240V units.
7. Provide suitable over-current protection (fuses or circuit breaker).
8. Provide a power supply disconnect within sight of the steam
generator or one that is capable of being locked in the open
position as required by code.
9. Wire size (AWG ) is based on minimum 90˚ C rated THHN
copper conductors. Refer to the National Electric Code for
other types of conductors.