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Honeywell TRADELINE Q7300L Installation Instructions Manual

Series 2000 commercial thermostat subbases
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APPLICATION
The Q7300L Thermostat Subbase is used with the
T7300D,F Thermostat to provide electronic control of
commercial 24 Vac single zone HVAC equipment. The
T7300/Q7300L is designed for heat-cool applications using
a valve and valve actuator combination for hydronic
heating. See Table 1. It can also be used to control single-
stage conventional heating systems. It provides two-speed
fan control. Terminals are provided for the T7047 Remote
Sensor or the T7147 Remote Sensor and Override
Module. LEDs on the thermostat are prewired and labeled
to indicate heat and cool operation. See Fig. 9 and 10 for
hookup drawings. Refer to form 63-4355 for installation
and operation of the T7300/Q7300.
Table 1. Valve and Valve Actuator Combinations.
Valve Model
V5011A, C
V5011F, G
V5013A, C
V5013F
IMPORTANT
The valve will not close if the wrong valve and
valve actuator combination is used.
Electrical Rating:
20 to 30 Vac, 50/60 Hz.
System Current :
6 VA maximum at 30 Vac, 50 or 60 Hz.
Output Relay Current:
See Table 2.
® U.S. Registered Trademark
Copyright © 1996 Honeywell Inc. •
Valve Actuator Model
ML7984A3019
ML7984A3001
ML7984A3019
ML7984A3001
• All Rights Reserved
Series 2000 Commercial
Thermostat Subbases
Table 2. Maximum Amps at 30 Vac.
Relay
Fan
Heat
Cool
Auxillary (Economizer)
Temperature:
Ratings:
Operating Ambient: 40°F to 110°F (4°C to 43°C).
Shipping: -30°F to +150°F (-34°C to +65°C).
Display Accuracy:
+1°F (+0.5°C).
Setpoint:
Range: 45°F to 95°F (7°C to 35°C).
Differential: 2°F (1°C).
Humidity Ratings:
5% to 90% RH, noncondensing.
RECYCLING NOTICE
If this control is replacing a control that contains
mercury in a sealed tube, do n
control in the trash
Contact your local waste management authority for
instructions regarding recycling and the proper
disposal of the old thermostat.
INSTALLATION
When Installing this Product...
1. Read these instructions carefully. Failure to follow
the instructions can damage the product or cause a
hazardous condition.
2. Check the ratings given in the instructions and on
the product to make sure the product is suitable for
your application.
3. Installer must be a trained, experienced service
technician.
4. After completing installation, use these instructions
to check out the product operation.
X-XX UL
Q7300L
INSTALLATION INSTRUCTIONS
Running (A)
1.6
1.6
1.6
1.6
ot
place your old
Inrush (A)
3.5
3.5
7.5
3.5
62-0131-2

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  Summary of Contents for Honeywell TRADELINE Q7300L

  • Page 1 3. Installer must be a trained, experienced service technician. 4. After completing installation, use these instructions to check out the product operation. ® U.S. Registered Trademark 62-0131-2 Copyright © 1996 Honeywell Inc. • • All Rights Reserved X-XX UL...
  • Page 2 Q7300L SERIES 2000 COMMERCIAL THERMOSTAT SUBBASE 5 FEET (1.5 METERS) M4823A Fig. 1. Typical location of thermostat or remote-mounted sensor. Location Do not mount the sensor(s) where it can be affected by: — drafts, or dead spots behind doors and in corners. Subbase without Remote-Mounted —...
  • Page 3: Mounting Subbase

    Q7300L SERIES 2000 COMMERCIAL THERMOSTAT SUBBASE SUBBASE SUBBASE T7047C T7047C T7047C T7047C T7047G T7047C T7047C T7047C T7047C T7047C T7047C T7047C M4839 Fig. 3. Two T7047C Sensors and one T7047G Sensor providing temperature averaging network for T7300/ Q7300 Thermostat/Subbase. M4842 SUBBASE Fig.
  • Page 4 Q7300L SERIES 2000 COMMERCIAL THERMOSTAT SUBBASE WIRING SUBBASE All wiring must comply with local electrical codes and ordinances. Follow equipment manufacturer wiring instructions when available. Refer to Fig. 9 and 10 for typical hookups. A letter code is located near each terminal for identification. See Table 3 for terminal descriptions and system action.
  • Page 5 Q7300L SERIES 2000 COMMERCIAL THERMOSTAT SUBBASE Typical Wiring Hookups SUBBASE ML7984 COOLING VALVE HIGH DAMPER RELAY ACTUATOR SPEED CONTROL DISCHARGE RELAY RELAY SENSOR T7147 REMOTE COMFORT ADJUST MODULE PUMP SPEED INTERLOCK RELAY RELAY (HOT) (HOT) TRANSFORMER TRANSFORMER CONNECT GND TO EARTH GROUND. POWER SUPPLY.
  • Page 6 Q7300L SERIES 2000 COMMERCIAL THERMOSTAT SUBBASE ENGAGE TABS AT TOP OF THERMOSTAT AND SUBBASE OR WALLPLATE. Mounting Thermostat on Subbase Mount the thermostat on the subbase after the subbase is installed. 1. Engage tabs at the top of the thermostat and subbase.
  • Page 7: Operation

    Q7300L SERIES 2000 COMMERCIAL THERMOSTAT SUBBASE OPERATION Table 4. T7300 Thermostat/Q7300L Subbase Sequence of Operation. System Equipment Loads Mode Setting Setting Call Action Energized Occupied Auto — Thermostat in Occupied mode. Damper control relay energized. Occupied — — Depends on last system. If cool is the last GL or GH system, then call is for high speed fan.
  • Page 8 Q7300L SERIES 2000 COMMERCIAL THERMOSTAT SUBBASE Home and Building Control Home and Building Control Helping You Control Your World ® Honeywell Limited-Honeywell Limitée Honeywell Inc. 155 Gordon Baker Road Honeywell Plaza North York, Ontario P.O. Box 524 M2H 3N7 Minneapolis, MN 55408-0524 62-0131—2...