3
INTRODUCTION
This manual provides information necessary
for the installation, operation, and maintenance
of the MOBIUS Model T-M1 water heater. This
unit includes a power fan for power venting
system, and an advanced electronic ignition
system.
The model designation is listed on the rating
plate, which is attached to the front of the
water heater. Please read all application and
installation procedures completely before doing
the installation. If you have any problems or
questions regarding this equipment, consult
the Takagi Industrial Co. USA, Inc. or local
factory representative. Experiences have
shown that most operating problems are
caused by improper installation (human error).
FOR YOUR SAFETY
FOR YOUR SAFETY, PLEASE READ THIS
MANUAL CAREFULLY AND FOLLOW ALL
DIRECTIONS.
1. Follow all local codes, or in the absence of
local codes, follow the most recent edition
of the National Fuel Gas Code, ANSI
Z223.1/NFPA 54 in USA or the CGA
standard, CAN/CGA B149.1 or .2
Installation Codes for Gas Burning
Appliances in Canada.
2. Properly ground the unit in accordance with
all local codes or in the absence of local
codes, with the National Electrical Codes,
ANSI/NFPA 70 in the USA or CSA
standard C22.1 Canada Electrical Code
Part 1 in Canada.
3. Carefully plan where you intend to install
your MOBIUS Water Heater. Insure that
your heater will have enough combustible
air, proper ventilation, and locate your
heater where water leakage will not do
damage to surrounding areas. If there is a
possibility of water damage, install a
suitable drain pan under the unit, which will
not restrict combustible airflow.
4.
Check the rating plate for the correct gas
type, gas pressure, water pressure, and
electrical rating. If this unit does not match
your requirements, do not install.
RATING PLATE
5. If any problem should occur, turn off all hot
water taps and turn off the gas. Then call a
trained technician or Gas Company or
manufacturer.
6.
WARNING:
Do not disconnect the
electrical supply if the ambient
temperatures will be reaching freezing. The
Freeze Prevention Device only works if the
unit has proper electrical power. The
Freeze Prevention Device is rated for
temperatures down to 5ºF (-15ºC) in a wind
free environment. The wind chill factor will
cause the MOBIUS Water Heater to freeze
and be damaged at temperatures below
5ºF (-15ºC). Refer to the section on
Winterizing and Freeze Prevention Device
for more information. Warranty will not be
covered if the heat exchanger is damaged
by weather. Please read winterize section
in this installation book.
7.
WARNING:
Before bathing or showering
always check the water temperature. Do
not leave children or infirm person
unsupervised in the shower or bath. The
water temperature is set at 120ºF (60ºC)
from the factory to maximize the amount of
hot water you can use without an optional
temperature remote controller, Water
temperature over 125ºF can cause severe
burns instantly or death from scalding.
8.
WARNING:
Do not use this appliance if
any part has been contacted or been
immersed water. Immediately call a
certified, trained technician or manufacture
to inspect and/or service the unit if
necessary.
9.
WARNING:
Do not store or use gasoline or
other flammables, vapors and liquids in the
vicinity of this or any other appliance.
