John Wood Takagi - 910 - Manual (Page 17)

17
The remote controller is not required for
the Easy-Link system.
If running the Easy-Link system without
the remote controller, please make sure
the DIPswitch settings for the tempera-
ture, outdoor, and direct-vent settings
on ALL the units are set to the same
settings. Otherwise, the units may not
operate properly.
If the remote controller is used, the tem-
perature on all the units in the system
will automatically be set to the same
temperature that is set on the remote.
However, even with the remote, the out-
door and direct-vent DIPswitch settings
still need to be set to the same settings
on all the units. •
•
•
Multi-unit System For Large Volumes
Multiple 910 models can be combined for a Multi-Unit sys-
tem, along with the Multiple Unit Controller and Remote
Controller (Parts TM-MC01 and TM-RE30) . Each set of
controllers (Parts TM-MC01 and TM-RE30) can control from
2 units to 10 units for commercial or residential applications.
For a 10-unit system, the computer can modulate between
the usages of 15,000 BTU/h to 3.8 Million BTU/h.
910
TM-MC01
Hot Out Cold In
An individual cut-off switch is recommended for each unit in
a multi-unit system for the purpose of maintenance.
Multi-Unit System Connection Diagram
Multi-Unit Controller (TM-MC01) and Temperature Remote
Controller (TM-RE30) wiring:
The above connection diagram is an example of how to
connect 4 water heaters together in a Multi-Unit System.
Up to 10 water heaters can be connected in this fash-
ion.
Make sure the “7-seg LED” of all the units’ computer
boards display the unit #. The Multi-Unit controller auto-
matically allocates the unit # (1 to 10) to each water
heater that is part of the Multi-unit system.
The dark squares indicate the direction the DIPswitches
should be set to.
Please refer to the Multi-Unit Controller manual for further
instructions of the Multi-Unit system.
Easy-Link / Multi-unit
System connectors are on
each unit’s computer board
Upper bank of DIPswitches
7-Seg LED Lower bank of
DIPswitches This lamp will fl ash when the
unit is allowed the operation.
The Comunication Cables are included
with the 910. The Cables use 18 gage
wire and can be up to 76.2m (250 ft.)
long all together.
•
•
•