Honeywell TRADELINE Q7300H Series User manual

®
®
® U.S. Registered Trademark
Copyright © 2001 Honeywell • • All Rights Reserved
INSTALLATION INSTRUCTIONS
62-0155-3
Q7300H Series 2000 Commercial
Thermostat Subbases
APPLICATION
The Q7300H Thermostat Subbases are used with
T7300F Thermostats to provide electronic control of
commercial 24 Vac single or multistage heat pump or
conventional heating and cooling systems. All models
have EB terminals for LONWORKS®network connections.
Terminals are also provided for the T7047 Remote
Sensor or the T7147 Remote Sensor and Override
Module. See Table 1. Select models are designed for
heat applications using a valve and valve actuator
combination for hydronic heating with 2-speed fan
control. See Table 4. All Q7300 Thermostat Subbases
require a common wire to the supply power.
Table 1. Q7300 Subbase Description.
aDepends on model.
bDesigned for heat applications using a valve and valve actuator (see Table 2).
IMPORTANT
The valve does not close unless correct
valve and valve actuator combination is used.
See Table 2.
Table 2. Valve and Valve Actuator Combinations.
Table 3. Output Relay Maximum Current (at 30 Vac).
MERCURY NOTICE
If this control is replacing a control that contains
mercury in a sealed tube, do not place your old
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 the installation, use these
instructions to check out the product operation.
Model
Maximum Stagesa
Hookup Drawing Applications
Thermostat
RequiredHeat Cool
Q7300H2003 3 2 10 Heat Pump T7300F
Q7300H2011 3 2 11
Q7300H2029 3 3 12 Conventional
Q7300H2037b2113
Valve Model Valve Actuator Model
V5011A,C ML7984A3019
V5011F,G ML7984A3001
V5011N, V5013N ML7984A3019
V5013A,C ML7984A3019
V5013F ML7984A3001
Relay
Maximum Current (in Amps)
Inrush Running
Fan 3.5 2.0
Heat
Auxiliary (Economizer)
Cool 7.5
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Q7300H SERIES 2000 COMMERCIAL THERMOSTAT SUBBASES
62-0155—3 2
Location
Subbase Without Remote-Mounted
Temperature Sensor
Install the thermostat about 5 ft (1.5m) above the floor in
an area with good air circulation at average temperature.
See Fig. 1.
Do not install the thermostat where it can be affected by:
— Drafts, or dead spots behind doors and in corners.
— Hot or cold air from ducts.
— Radiant heat from sun or appliances.
— Concealed pipes and chimneys.
— Uncontrolled areas such as an outside wall behind the
thermostat.
Subbase With Remote-Mounted
Temperature Sensors
If only remote-mounted temperature sensors are
used to sense and control room temperature, install
the thermostat in an area accessible for setting and
adjusting the temperature and settings.
If both the subbase and remote-mounted temperature
sensor(s) are used to sense and control room
temperature, install the subbase about 5 ft above the
floor in an area with good air circulation. Install the
remote-mounted sensor(s) about 5 ft (1.5m) above the
floor in an area with good air circulation at average
temperature. See Fig. 1.
Do not mount the sensor(s) where it can be affected by:
— Drafts, or dead spots behind doors and in corners.
— Hot or cold air from ducts.
— Radiant heat from sun or appliances.
— Concealed pipes and chimneys.
— Uncontrolled areas such as an outside wall behind the
thermostat.
If more than one remote sensor is required, arrange them
in a temperature averaging network consisting of two,
three, four, five or nine sensors. See Fig. 2 through 6.
IMPORTANT
To avoid electrical interference, which can
cause erratic performance, keep wiring runs
as short as possible and do not run thermostat
wires adjacent to the line voltage electrical
distribution systems. Use shielded cable
(Belden type 8762 or equivalent for 2-wire and
Belden type 8772 or equivalent for 3-wire). The
cable shield must be grounded only at the
controlled equipment case.
Fig. 1. Typical location of thermostat
or remote-mounted sensor.
Fig. 2. Two T7047G Sensors providing
temperature averaging network for
T7300/Q7300 Thermostat/Subbase.
Fig. 3. Two T7047C Sensors and one T7047G Sensor
providing temperature averaging network for
T7300/Q7300 Thermostat/Subbase.
5 FEET
(1.5 METERS)
YES NO
NO NO
M4823
A
M4838
TT
SUBBASE
T
T
T7047G
T
7047G
T
T
M4839
TT
SUBBASE
TT
T7047C
TT
T7047C TT
T7047G
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Q7300H SERIES 2000 COMMERCIAL THERMOSTAT SUBBASES
3 62-0155—3
Fig. 4. Four T7047C Sensors providing
temperature averaging network for
T7300/Q7300 Thermostat/Subbase.
Fig. 5. Five T7047G Sensors providing
temperature averaging network for
T7300/Q7300 Thermostat/Subbase.
Fig. 6. Nine T7047C Sensors providing
temperature averaging network for
T7300/Q7300 Thermostat/Subbase.
Mount Subbase
Mount the subbase horizontally on the wall or on a
2 in. x 4 in. wiring box:
1. Position and level the subbase or wallplate (for
appearance only). The thermostat functions properly
even when not level.
2. Use a pencil to mark mounting holes. See Fig. 7.
3. Remove subbase or wallplate from the wall and
drill two 3/16 in. holes in the wall (if drywall) as
marked. (For firmer material such as plaster or
wood, drill two 7/32 in. holes.) Gently tap anchors
(provided) into drilled holes until flush with the wall.
4. Position the subbase over the holes, pulling wires
through the wiring opening.
5. Loosely insert the mounting screws into the holes.
6. Tighten the mounting screws.
Fig. 7. Mounting the subbase.
M4840
TT
TT
SUBBASE
T7047C
TT
T7047C
TT
T7047C
TT
T7047C
M4841
TT
SUBBASE
TT
T7047G
TT
T7047G
TT
T7047G
TT
T7047G
TT
T7047G
M4842
TT
TT
SUBBASE
T7047C
TT
T7047C
TT
T7047C
TT
T7047C
TT
T7047C
TT
T7047C
TT
T7047C
TT
T7047C
TT
T7047C
WIRES
THROUGH WALL
WALL
WALL
ANCHORS (2)
M16055
MOUNTING
HOLES (2)
MOUNTING
SCREWS (2)
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Q7300H SERIES 2000 COMMERCIAL THERMOSTAT SUBBASES
62-0155—3 4
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 LONWORKS Bus. Refer to the System
Performance and Cable Selection section in the
LONWORKS Wiring Guidelines, form 74-2865, to
get the specific wire type and size for the
LONWORKS Bus.
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.
NOTE: After wiring, check that all connections
are tight and secure. See Fig. 8. Loose or
intermittent wire connections can cause
inconsistent system operation.
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
LONWORKS termination, see Fig. 9. For further details on
LONWORKS termination, refer to the LONWORKS Bus
Wiring Guidelines, form 74-2865 or see Application
Steps, Step 3. Lay Out Communications and Power
Wiring and the LONWORKS Bus Termination Module,
Termination Module subsection, of the W7760 System
Engineering Guide, form 74-2969.
Fig. 8. Proper wiring technique.
Fig. 9. Typical wiring diagram for T7300/Q7300 in LONWORKS network.
M482
6
F
OR WRAPAROUND
I
NSERTION STRIP
7
/16 IN. (11 MM).
FOR STRAIGHT INSERTION
STRIP 5/16 IN. (8 MM).
NOTEBOOK PC
RS-232
SLTA
SLTA
SLTA
LonWorks®BUS
LonWorks®BUS
LonWorks®BUS
RS-232
RS-232
T7300 T7300 T7300
T7300
T7300
T7300 T7300 T7300 T7300
MODEM
MODEM
MODEM
M16063A
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Q7300H SERIES 2000 COMMERCIAL THERMOSTAT SUBBASES
5 62-0155—3
Table 4. Terminal Descriptions and Conditions.
aEuropean installations must use a safety transformer as defined by IEC60742.
bApplies to Q7300L and Q7300H2037 only.
Fig. 10. Typical hookup of T7300F/Q7300H in three-stage heat and two-stage cool heat pump system.
Standard Terminal
Designations Typical Connection Function Terminal Type
A1, A3 Damper control relay. See T7300F Installation Instructions, form 69-1025, Installer
Setup 18, for control parameters
Output Dry Contact
A2 Dry auxiliary contact. (A2 is common to A1,A3). Input —
AS, AS C7150B Discharge Air Sensor connection.
B Heating changeover valve. Output 24V Powered Contact
BM ML7984 Actuator connectionb. No call for heat: valve closed; call for stage 1 heat:
valve approximately one-half open; call for stage 2 heat: valve full open.
Output —
C1,C2,C3,C4,C5 Communication input for T7147. Input/Output Low Power
E Emergency heat relay. Output 24V Powered Contact
EB LONWORKS®network connection. Input/Output Communications
FC Fan control transformer. Input —
G Fan relay. Output
GH High speed fan output. Activated during call for cooling.
GL Low speed fan output. Activated on call for heat and fan On selection.
O Cooling changeover valve.
P1, P2 Pump interlock relay. Operates circulator pump in hydronic heat or energizes
conventional heat system.
Input/Output
R24V system transformer.aInput
RC 24V cooling transformer.a
RH 24V heating transformer.a
RM ML7984 Actuator connection. No call for heat: valve closed. Call for stage 1 heat:
valve approximately one-half open. Call for stage 2 heat: valve fully open.
Output
T, T Remote sensor input for T7047 or T7147. Input
W1 Stage 1: heating relay or auxiliary heat relay. Output
W2 Stage 2: heating relay.
W3 Stage 3: heating relay.
X Heating transformer common. Input
Y Cool call. 24V Output
Y1 Stage 1: compressor contactor. Output
Y2 Stage 2: cooling compressor (conventional) or compressor contactor (heat pump).
Y3 Stage 3: cooling compressor.
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION INSTRUCTIONS.
USE A1 AND A2 WHEN CONTACTS ARE NORMALLY CLOSED IN OCCUPIED MODE.
CONNECT GND TO EARTH GROUND.
1
14
M16056
2
3
4
2
3
W1
L1
(HOT)
L2
Y1 O G
SUBBASE
X
EM. HT.
RELAY
RC1 T
T7147 REMOTE COMFORT ADJUST MODULE
GND
BC2
COMPRESSOR
CONTACTOR 1
C4 C3C5
CA1 T CA2
CA4 CA3CA5
TEBEB
T
TRANSFORMER
E
AUX.
HEAT
HEAT
CHANGEOVER
VALVE
FAN
RELAY
COOL
CHANGEOVER
VALVE
A2A1
AS AS
DISCHARGE
AIR
SENSOR
Y2
COMPRESSOR
CONTACTOR 2
ECONOMIZER
LonWorks®
BUS
LonWorks®
BUS
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Q7300H SERIES 2000 COMMERCIAL THERMOSTAT SUBBASES
62-0155—3 6
Fig. 11. Typical hookup of T7300F/Q7300H in three-stage heat and two-stage cool heat pump system.
Fig. 12. Typical hookup of T7300F/Q7300H in three-stage heat and three-stage cool conventional system.
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
USE A1 AND A2 WHEN CONTACTS ARE NORMALLY CLOSED IN OCCUPIED MODE.
USE A2 AND A3 WHEN CONTACTS ARE NORMALLY OPEN IN OCCUPIED MODE.
CONNECT GND TO EARTH GROUND.
USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.
1
13
M16057
2
3
4
2
4
HEAT
RELAY 3
W2
L1
(HOT)
L2
FAN
RELAY
Y1 G
SUBBASE
X R C1 T
T7147 REMOTE COMFORT ADJUST MODULE
GND
W1 C2
COMPRESSOR
CONTACTOR 1
C4 C3C5
CA1 T CA2
CA4 CA3CA5
T
T
Y2
COMPRESSOR
CONTACTOR 2
TRANSFORMER
W3E
HEAT
RELAY 2
EM. HT.
RELAY
A2 A3A1
ECONOMIZER
AS AS
DISCHARGE
AIR
SENSOR
HEAT
RELAY 1
EB EB
LonWorks®BU
S
LonWorks®BUS
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
JUMPER RC TERMINAL TO RH TERMINAL WHEN INSTALLED ON A
SYSTEM WITH ONE TRANSFORMER.
USE A1 AND A2 WHEN CONTACTS ARE NORMALLY CLOSED
IN OCCUPIED MODE. USE A2 AND A3 WHEN CONTACTS
ARE NORMALLY OPEN IN OCCUPIED MODE.
1
1
14
5
M16058
2
2
3
4
5
3
HEAT
RELAY 3
W2
L1
(HOT)
L2
FAN
RELAY
Y1 G X
SUBBASE
RC RH C1 T
T7147 REMOTE COMFORT ADJUST MODULE
GND
W1 C2
L1
(HOT)
L2
COMPRESSOR
CONTACTOR 1
C4 C3C5
CA1 T CA2
CA4 CA3CA5
T
T
Y2
COMPRESSOR
CONTACTOR 2
HEATING
TRANSFORMER
COOLING
TRANSFORMER
W3Y3
HEAT
RELAY 2
COMPRESSOR
CONTACTOR 3
A2 A3A1
ECONOMIZER
AS AS
DISCHARGE
AIR
SENSOR
HEAT
RELAY 1
CONNECT GND TO EARTH GROUND.
USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.
EB EB
LonWorks®
BUS
LonWorks®
BUS
62-0155.fm Page 6 Monday, March 21, 2005 9:40 AM

Q7300H SERIES 2000 COMMERCIAL THERMOSTAT SUBBASES
7 62-0155—3
Fig. 13. Typical hookup of T7300F/Q7300H in two-stage heat and one-stage cool conventional system.
Mount Thermostat on Subbase
After the subbase is installed, mount the thermostat on
the subbase:
1. Engage the tabs at the top of the thermostat and
subbase. See Fig. 14.
2. Press the lower edge of the case to latch.
NOTE: To remove the thermostat from the wall,
first pull out the bottom of the thermostat;
then remove the top.
IMPORTANT
Refer to the T7300F thermostat installation
instructions for Installer Setup, Settings, Installer
System Test and Troubleshooting information.
Fig. 14. Mount thermostat on subbase.
L1
(HOT)
L2
M16059
LOW
SPEED
FAN
RELAY
GL GH R
SUBBASE
FC Y C1 T
T7147 REMOTE COMFORT
ADJUST MODULE GND
C2
L1
(HOT)
L2
COOLING
RELAY
C4 C3C5
CA1 TCA2
CA4 CA3CA5
T
T
X
TRANSFORMER
FAN TRANSFORMER
A2A1P1 P2BM
DAMPER
CONTROL
RELAY
HIGH
SPEED
FAN
RELAY
RM
ML7984
VALVE
ACTUATOR
PUMP
INTERLOCK
RELAY
AS AS
DISCHARGE
AIR
SENSOR
EB EB
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
CONNECT GND TO EARTH GROUND.
SEE TABLE 2 FOR VALVE AND VALVE ACTUATOR MODELS.
1
1
1
2
2
3
3
LonWorks®BU
S
LonWorks®BUS
M4824A
B. PRESS LOWER EDGE OF CASE TO LATCH.
A
.ENGAGE TABS AT TOP OF THERMOSTAT AND SUBBASE OR WALLPLATE
.
62-0155.fm Page 7 Monday, March 21, 2005 9:40 AM

62-0155—3 B.B. 3-01 www.honeywell.com
Q7300H SERIES 2000 COMMERCIAL THERMOSTAT SUBBASES
Printed in U.S.A. on recycled
paper containing at least 10%
post-consumer paper fibers.
Home and Building Control Home and Building Control
Honeywell Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North 35 Dynamic Drive
Golden Valley, MN 55422 Scarborough, Ontario
M1V 4Z9
OPERATION
Refer to Table 5 for Q7300H2037 Subbase operation sequence.
Table 5. Q7300H2037 Subbase Operation Sequence.
aLow speed fan is activated in the Heat mode and high speed fan is activated in the Cool mode.
Remote Temperature Sensing and Override
The Q7300H Subbase can be used with the T7147 Remote Sensor to sense temperature and provide the Occupied
mode temperature. The subbase also can be used with the T7047 Sensor if remote occupied control is not required.
LONWORKS®, LONMARK®, LONMARK Logo and LONTALK®are registered trademarks of Echelon®Corporation.
Mode
System
Setting
Fan
SettingaEquipment
Call Action
Loads
Energized
Occupied Any Auto — Damper control relay energized. A2
— On — Last system dependant . Last system is cool: call is for high
speed fan. Last system is heat: call is for low speed fan.
GL or GH
Heat Auto Stage 1
heat
Hydronic applications: ML7984 approximately one-half
open. Pump interlock relay activated to energize circulator
pump. Conventional applications: stage 1 heat is activated.
Low-speed fan is activated.
A2, GL,
RM, BM,
P2
Heat Auto Stage 2
heat
Hydronic applications: ML7984 is fully open.
Conventional systems: no action.
A2, GL,
RM, BM,
P2
Cool Auto Stage 1
cool
Cooling relay activated. High-speed fan activated. A2, GH, Y
Unoccupied Any Any — Damper control relay de-energized. —
On — System fan operates at appropriate speed with call for heat
or cool equipment.
62-0155.fm Page 8 Monday, March 21, 2005 9:40 AM