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Conductors and drain wire must be 20 AWG minimum
stranded, tinned copper. Individual conductors must be insulat-
ed with PVC, PVC/nylon, vinyl, Teflon, or polyethylene. An
aluminum/polyester 100% foil shield and an outer jacket of
PVC, PVC/nylon, chrome vinyl, or Teflon with a minimum op-
erating temperature range of -20 C to 60 C (-4 F to 140 F) is re-
quired. Table 9 lists cables that meet the requirements.
Table 9 — CCN Connection Approved
Shielded Cables
Table 10 — Color Code Recommendations
NOTE: If a cable with a different color scheme is selected, a
similar color code should be adopted for the entire network.
At each system element, the shields of the communication
bus cables must be tied together. If the communication bus is
entirely within one building, the resulting continuous shield
must be connected to a ground
at one point only
. If the com-
munication bus cable exits from one building and enters anoth-
er, the shields must be connected to grounds at the lightning
suppressor in each building where the cable enters or exits the
building (one point per building only).
To connect the unit to the network:
1. Turn off power to the control box.
2. Cut the CCN wire and strip the ends of the red (+), white
(ground), and black (-) conductors. (If a different network
color scheme is used, substitute appropriate colors.)
3. Remove the 3-pin male plug from the base control board
in the main control box, and connect the wires as follows:
a. Insert and secure the red (+) wire to terminal 1 of
the 3-pin plug.
b. Insert and secure the white (ground) wire to termi-
nal 2 of the 3-pin plug.
c. Insert and secure the black (-) wire to terminal 3 of
the 3-pin plug.
4. Insert the plug into the existing 3-pin mating connector
on the base module in the main control box.
MANUFACTURER
CABLE PART NO.
Alpha
2413 or 5463
American
A22503
Belden
8772
Columbia
02525
IMPORTANT: When connecting the CCN communica-
tion bus to a system element, use a color coding system for
the entire network to simplify installation and checkout.
See Table 10.
SIGNAL
TYPE
CCN BUS CONDUCTOR
INSULATION COLOR
CCN PLUG
PIN NO.
Positive (+)
RED
1
Ground
WHITE
2
Negative (-)
BLACK
3
Fig. 32 — Field Control Thermostat Wiring
NOTE: Sensor part numbers are as follows:
T-55 —
CEC0121448-01
T-56 —
CEC0121448-01
Fig. 33 — Field Control Temperature Sensor
Wiring (CV or VAV Units)
Summary of Contents for WEATHERMAKER 48AJ020
Page 3: ...3 Fig 1 Roof Curb 48AJ AK020 030 and 48EJ EK024 034 Units ...
Page 4: ...4 Fig 2 Roof Curb 48AJ AK034 050 and 48EJ EK038 048 Units ...
Page 5: ...5 Fig 3 Roof Curb 48AJ AK060 and 48EJ EK054 068 Units ...
Page 97: ...97 Fig 78 Typical 48EK VAV 24 V Control Circuit ...
Page 99: ...99 Fig 80 Typical 48EK VAV 115 V Control Circuit ...
Page 100: ...100 Fig 81 Typical 48EJ CV 115 V Control Circuit ...
Page 101: ...101 Fig 82 Label Diagram Staged Gas Heat 48AJ AK AW AY020 050 and 48EJ EK EW EY024 048 Units ...
Page 102: ...102 Fig 83 Label Diagram Staged Gas Heat 48AJ AK AW AY060 and 48EJ EK EW EY054 068 Units ...