Installation Guide
mr
.
steam
®
  INSTALLER INFORMATION
__________________________________________________________________
4
  Do not route iSteam3 control wiring in-
side conduit together with power lines or close to hot 
water or steam piping. Doing so may result in an inop-
erative or hazardous installation. Do not alter or modify 
any Mr. Steam products including the steam generator 
or iSteam3 control. Doing so may result in an inopera-
tive or hazardous installation and will void the warranty.
IMPORTANT NOTES:
• The iSteam3 Control is designed to be ush mounted. 
However, the control may be surface mounted when 
conditions permit. Consult a MrSteam Customer Ser-
vice or Technical Service representative to determine if 
the iSteam3 control can be surface mounted. 
• Turn power to the steam generator OFF before  
connecting the control to the generator. Failure to turn 
the power off will result in an inoperable control.
• Do not operate the iSteam3 control with other than 
a MrSteam iSteam3 compatible steam generator. 
MrSteam residential steam generators with serial 
numbers lower than 1174000, or any other brand of 
steam generator are not to be operated with iSteam3 
controls. Doing so may result in an inoperative instal-
lation. If your generator’s serial number is lower than 
1174000 contact MrSteam Technical Service for up-
grade options and components to enable your steam 
generator to function with iSteam3.
• This document contains important safety, operation 
and maintenance information. Leave this document 
with the homeowner. Do not discard this document.
• Discontinue use of the steam generator or control 
if the steam generator is damaged or otherwise not 
functioning properly. Doing so may result in an inop-
erative or hazardous installation
• Refer to the Steambath Generator Installation, 
Operation and Maintenance Manual for locating and 
installing the steamhead.
  Do Not alter or modify any MrSteam 
products. Doing so may result in an inoperable or 
hazardous installation and will void the warranty.
Before Installing
T
o avoid unintentional steambath op-
eration, do not locate the control where other controls, 
accessories, shower heads, valves, body sprays or simi-
lar within the shower could cause confusion or interfere 
with the MrSteam control’s intended use and function.
• To prevent possible injury Do Not use the iSteam
®
3 
control without reading and understanding the 
MrSteam steam generator Installation and Operation 
Manual. 
• A peel and stick warning sticker is provided in the 
MrSteam steam generator Installation, Operation and 
Maintenance Manual. This manual is provided with 
every steam generator. The warning sticker must be 
read and permanently affixed in a conspicuous loca-
tion near the steam room. Failure to read and affix 
this warning sticker in a conspicuous location may 
result in serious injury or death. Please call MrSteam 
at 800 767-8326 for a free replacement or if you have 
any questions regarding the warning sticker.
• If an iSteam3 control is installed outside the steam 
room a Remote Temperature Probe (PN MSTS) must 
be installed inside the steam room per installation 
instructions supplied with the Remote Temperature 
Probe. Failure to install according to instructions will 
result in an inoperative control and overheating of 
the steam room.
WARNING
!
WARNING
!
CAUTION
!
CAUTION
!
Not actual size










