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Applications space-heating applications – John Wood Takagi - 110-310-510 User Manual

Page 20

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20

CASE 3:

If you connect the “PARENT” connector of the “CHILD-
1” unit to the “1” connector of the “CHILD-2” unit, the
“CHILD-2” unit will operate as an individual unit, and will
not be part of the Easy-Link system.

Communication

cable

Connectors

Right bank of

Dipswitches

OFF

ON

1 2 3 4 5 6

PARENT

1

2

Connectors

Right bank of

Dipswitches

OFF

ON

1 2 3 4 5 6

PARENT

1

2

Connectors

Right bank of

Dipswitches

OFF

ON

1 2 3 4 5 6

PARENT

1

2

PARENT

unit

CHILD-1

unit

Wrong

connection

CHILD-2

unit

Prohibited

Wrong connections between the “CHILD-
1”
unit and the “CHILD-2” unit

WARNING

Connecting two “PARENT” connectors
together from two separate units may dam-
age the computer board
. The communi-
cation cable has a female end and a male
end so it’s impossible to have a PARENT-
to-PARENT connection with the commu-
nication cable. Do not splice or modify
connectors.

CASE 4:

If a remote controller (optional) is used, it has to be con-
nected 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.

Communication

cable

Connectors

Right bank of

Dipswitches

OFF

ON

1 2 3 4 5 6

PARENT

1

2

Connectors

Right bank of

Dipswitches

OFF

ON

1 2 3 4 5 6

PARENT

1

2

PARENT

unit

CHILD-1

unit

Wrong

connection

Remote

controller

Prohibited

Remote controller connected to incorrect
unit

APPLICATIONS
Space-Heating Applications

WARNING

In order to purge air in water pipes
within a closed-loop system, an air
vent and air separator should be
installed in to the system. Required
circulation flow rates are labeled next
to each application diagram. These
flow rate requirements must be fol-
lowed
.
Toxic chemicals used in boiler treat-
ments such as alcohol, glycerol and gly-
col groups must not be introduced into
the system if the system incorporates an
open-loop potable water system.
The water heater can be used to supply
potable water and space heating and
shall not be connected to any heat-
ing system or component(s) previously
used with non-potable water where any
chemicals were added to the water heat-
ing appliances.
When the system requires water for
space heating at temperatures higher
than required for other uses, a means
such as a mixing valve shall be installed
to temper the water for those other uses
in order to reduce scald hazard poten-
tial.
Water temperature over 52°C (125°F)
can cause severe burns instantly or
death from scalds.
Chemicals such as diluted Glycol can be
used for radiant floor, Hydro/fan coil air
or Baseboard heating only. The diluted
solution of glycol must contain between
25 and 55% of Glycol. Be aware that in
closed-loop glycol systems, low pressure
in the heat exchanger can cause low-
temperature boiling, resulting in exces-
sive noise and damage to the water
heater. Consult with the glycol maker for
specifications prior to use.