Honeywell TRADELINE Q7300H Series Installation Instructions Manual page 4

Q7300H SERIES 2000 COMMERCIAL THERMOSTAT SUBBASES
Wire Subbase
CAUTION
Electrical Shock Hazard.
Power supply can cause electrical shock.
Disconnect power supply before beginning
installation.
IMPORTANT
• All wiring must comply with local electrical
codes and ordinances.
• Use 20 AWG, solid-conductor cable as the
normal size (18 AWG maximum) for all wiring
except the L
ON
Performance and Cable Selection section in the
L W Wiring Guidelines, form 74-2865, to
ON ORKS
get the specific wire type and size for the
L W Bus.
ON ORKS
Follow equipment manufacturer wiring instructions when
available.
1. Loosen the terminal screws on the subbase and
connect the system wires. See Fig. 8.
2. Securely tighten each terminal screw.
3. Push excess wire back into the hole.
4. Plug the hole with nonflammable insulation to
prevent drafts from affecting the thermostat.
NOTEBOOK PC
MODEM
Fig. 9. Typical wiring diagram for T7300/Q7300 in L
62-0155—3
W Bus. Refer to the System
ORKS
RS-232
SLTA
MODEM
RS-232
SLTA
NOTE: After wiring, check that all connections
Typical Wiring Hookups
Refer to Fig. 11 through 13 for typical hookups. A letter
code is located near each terminal for identification. See
Table 4 for terminal descriptions and system action. For
L W
ON ORKS
L W
ON ORKS
Wiring Guidelines, form 74-2865 or see Application
Steps, Step 3. Lay Out Communications and Power
Wiring and the L
Termination Module subsection, of the W7760 System
Engineering Guide, form 74-2969.
FOR WRAPAROUND
INSERTION STRIP
7/16 IN. (11 MM).
T7300 T7300
MODEM
RS-232
T7300 T7300
4
are tight and secure. See Fig. 8. Loose or
intermittent wire connections can cause
inconsistent system operation.
termination, see Fig. 9. For further details on
termination, refer to the L
W Bus Termination Module,
ON ORKS
Fig. 8. Proper wiring technique.
T7300
LonWorks ® BUS
LonWorks ® BUS
SLTA
T7300
LonWorks ® BUS
W network.
ON ORKS
W Bus
ON ORKS
FOR STRAIGHT INSERTION
STRIP 5/16 IN. (8 MM).
M4826
T7300
T7300
T7300
M16063A