Installation Sheet

- 27 -
Communication cable
P
A
R
E
N
T
P
A
R
E
N
T
Connectors Connectors
Lower bank of Dipswitch
OFF
ON
Lower bank of Dipswitch
OFF
ON
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
11
22
11
2
2
• If a remote controller (optional) is used, it has to be connected to the “PARENT” unit. If the
remote controller is connected to a “CHILD” unit,
it will only control that particular individual
“CHILD” unit and will not control the Easy-Link system as a whole.
MULTI-UNIT SYSTEM FOR LARGE VOLUMES
Multi-Unit system allows 910 (T-M50) model to be combined together from two to 10 units with
the multi-unit controller and remote controller for commercial or residential applications. For a
10-unit system, the computer can modulate from 15,000 BTU/h to 3,800,000 BTU/h.
An individual cut-off switch is recommended for each unit in a multi-unit system for the purpose
of maintenance.
• 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 temperature, 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 temperature 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 outdoor and direct-vent
dipswitch settings still need to be set to the same settings on all the units.
Wrong connection
between the “CHILD”
unit and the remote
controller
PARENT unit
CHILD unit
Remote controller
910
(T-M50)
Cold IN
Hot Out
Multi-unit
controller