Q7300H Series 2000 Commercial Thermostat Subbases

Q7300H Series 2000 Commercial Thermostat Subbases
62-0155.fm Page 1 Monday, March 21, 2005 9:40 AM
Q7300H Series 2000 Commercial
Thermostat Subbases
INSTALLATION INSTRUCTIONS
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.
Maximum Stagesa
Heat
Model
Cool
Hookup Drawing
Q7300H2003
3
2
10
Q7300H2011
3
2
11
3
3
12
2
1
13
Q7300H2029
b
Q7300H2037
a
b
Applications
Heat Pump
Thermostat
Required
T7300F
Conventional
Depends on model.
Designed 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.
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.
Table 2. Valve and Valve Actuator Combinations.
Valve Model
Valve Actuator Model
V5011A,C
V5011F,G
ML7984A3001
V5011N, V5013N
ML7984A3019
V5013A,C
ML7984A3019
V5013F
ML7984A3001
INSTALLATION
Table 3. Output Relay Maximum Current (at 30 Vac).
Maximum Current (in Amps)
Relay
Fan
Contact your local waste management authority
for instructions regarding recycling and the
proper disposal of the old thermostat.
ML7984A3019
Inrush
3.5
Running
2.0
When Installing this Product…
1.
2.
Heat
3.
Auxiliary (Economizer)
Cool
7.5
® U.S. Registered Trademark
Copyright © 2001 Honeywell •
4.
®
• All Rights Reserved
Read these instructions carefully. Failure to follow
the instructions can damage the product or cause
a hazardous condition.
Check the ratings given in the instructions and on
the product to make sure the product is suitable for
your application.
Installer must be a trained, experienced service
technician.
After completing the installation, use these
instructions to check out the product operation.
®
62-0155-3
62-0155.fm Page 2 Monday, March 21, 2005 9:40 AM
Q7300H SERIES 2000 COMMERCIAL THERMOSTAT SUBBASES
Location
Subbase Without Remote-Mounted
Temperature Sensor
YES
Install the thermostat about 5 ft (1.5m) above the floor in
an area with good air circulation at average temperature.
See Fig. 1.
NO
NO
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.
NO
5 FEET
(1.5 METERS)
M4823A
Fig. 1. Typical location of thermostat
or remote-mounted sensor.
Subbase With Remote-Mounted
Temperature Sensors
SUBBASE
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.
T
T7047G
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.
T
T7047G
T
T
T
T
M4838
Fig. 2. Two T7047G Sensors providing
temperature averaging network for
T7300/Q7300 Thermostat/Subbase.
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.
SUBBASE
T
T
T7047C
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.
T
T7047G
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.
62-0155—3
T
T
T7047C
T
T
T
M4839
Fig. 3. Two T7047C Sensors and one T7047G Sensor
providing temperature averaging network for
T7300/Q7300 Thermostat/Subbase.
2
62-0155.fm Page 3 Monday, March 21, 2005 9:40 AM
Q7300H SERIES 2000 COMMERCIAL THERMOSTAT SUBBASES
SUBBASE
T
SUBBASE
T
T
T7047C
T7047C
T7047C
T
T
T
T7047C
T
T
T7047C
T
T
T7047C
T7047C
T
T
T
T
T7047C
T
T
T
T
T
T
T7047C
T
T7047C
T
Fig. 4. Four T7047C Sensors providing
temperature averaging network for
T7300/Q7300 Thermostat/Subbase.
T
T7047C
T
T7047C
M4840
T
T
T
T7047C
T
T
T
SUBBASE
T
T7047G
T
T7047G
T
T7047G
T
M4842
Fig. 6. Nine T7047C Sensors providing
temperature averaging network for
T7300/Q7300 Thermostat/Subbase.
T
T
T
T
T7047G
T
T
Mount Subbase
T7047G
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.
T
T
M4841
Fig. 5. Five T7047G Sensors providing
temperature averaging network for
T7300/Q7300 Thermostat/Subbase.
WALL
WIRES
THROUGH WALL
MOUNTING
HOLES (2)
WALL
ANCHORS (2)
MOUNTING
SCREWS (2)
M16055
Fig. 7. Mounting the subbase.
3
62-0155—3
62-0155.fm Page 4 Monday, March 21, 2005 9:40 AM
Q7300H SERIES 2000 COMMERCIAL THERMOSTAT SUBBASES
Wire Subbase
NOTE: After wiring, check that all connections
are tight and secure. See Fig. 8. Loose or
intermittent wire connections can cause
inconsistent system operation.
CAUTION
Electrical Shock Hazard.
Power supply can cause electrical shock.
Disconnect power supply before beginning
installation.
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.
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.
FOR WRAPAROUND
INSERTION STRIP
7/16 IN. (11 MM).
Follow equipment manufacturer wiring instructions when
available.
1.
2.
3.
4.
Loosen the terminal screws on the subbase and
connect the system wires. See Fig. 8.
Securely tighten each terminal screw.
Push excess wire back into the hole.
Plug the hole with nonflammable insulation to
prevent drafts from affecting the thermostat.
FOR STRAIGHT INSERTION
STRIP 5/16 IN. (8 MM).
M4826
Fig. 8. Proper wiring technique.
NOTEBOOK PC
T7300
T7300
T7300
T7300
RS-232
LonWorks® BUS
SLTA
T7300
MODEM
MODEM
RS-232
LonWorks® BUS
SLTA
T7300
T7300
T7300
T7300
MODEM
RS-232
LonWorks® BUS
SLTA
Fig. 9. Typical wiring diagram for T7300/Q7300 in LONWORKS network.
62-0155—3
4
M16063A
62-0155.fm Page 5 Monday, March 21, 2005 9:40 AM
Q7300H SERIES 2000 COMMERCIAL THERMOSTAT SUBBASES
Table 4. Terminal Descriptions and Conditions.
Standard Terminal
Designations
Typical Connection
Function
Terminal Type
A1, A3
Damper control relay. See T7300F Installation Instructions, form 69-1025, Installer Output
Setup 18, for control parameters
Dry Contact
A2
Dry auxiliary contact. (A2 is common to A1,A3).
Input
—
AS, AS
C7150B Discharge Air Sensor connection.
Output
24V Powered Contact
B
Heating changeover valve.
BM
ML7984 Actuator connectionb. No call for heat: valve closed; call for stage 1 heat: Output
valve approximately one-half open; call for stage 2 heat: valve full open.
—
C1,C2,C3,C4,C5
Communication input for T7147.
Input/Output Low Power
E
Emergency heat relay.
Output
EB
LONWORKS® network connection.
Input/Output Communications
FC
Fan control transformer.
Input
G
Fan relay.
Output
24V Powered Contact
—
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
R
24V system transformer.a
Input
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.
Y
Cool call.
Input
24V Output
Y1
Stage 1: compressor contactor.
Output
Y2
Stage 2: cooling compressor (conventional) or compressor contactor (heat pump).
Y3
Stage 3: cooling compressor.
a
European installations must use a safety transformer as defined by IEC60742.
b
Applies to Q7300L and Q7300H2037 only.
SUBBASE
AS
AS
DISCHARGE
AIR
SENSOR
X
Y2
Y1
O
G
E
W1
B
3
A1 A2
R
C5
C4
C3
C2
C1
CA5
CA4
CA3
CA2
CA1
T
T
EB EB
AUX.
HEAT
COMPRESSOR
CONTACTOR 2
COMPRESSOR
CONTACTOR 1
FAN
RELAY
LonWorks®
BUS
HEAT
CHANGEOVER
VALVE
T
T
T7147 REMOTE COMFORT ADJUST MODULE
GND
EM. HT.
RELAY
COOL
CHANGEOVER
VALVE
ECONOMIZER
2
1
L1
(HOT)
LonWorks®
BUS
4
L2
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2
USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION INSTRUCTIONS.
3
USE A1 AND A2 WHEN CONTACTS ARE NORMALLY CLOSED IN OCCUPIED MODE.
4
CONNECT GND TO EARTH GROUND.
TRANSFORMER
M16056
Fig. 10. Typical hookup of T7300F/Q7300H in three-stage heat and two-stage cool heat pump system.
5
62-0155—3
62-0155.fm Page 6 Monday, March 21, 2005 9:40 AM
Q7300H SERIES 2000 COMMERCIAL THERMOSTAT SUBBASES
SUBBASE
AS
AS X
Y1
G
W3
EM. HT.
RELAY
COMPRESSOR
CONTACTOR 1
DISCHARGE
AIR
SENSOR
E
Y2
W2
2
A2 A3
A1
W1 R
HEAT
RELAY 2
C4
C3
C2
C1
T
LonWorks® BUS
CA5 CA4 CA3 CA2 CA1
T
T
T7147 REMOTE COMFORT ADJUST MODULE
GND
HEAT
RELAY 3
HEAT
RELAY 1
LonWorks® BUS
3
1
COMPRESSOR
CONTACTOR 2
EB EB
T
ECONOMIZER
4
FAN
RELAY
C5
L1
(HOT)
L2
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
TRANSFORMER
2
USE A1 AND A2 WHEN CONTACTS ARE NORMALLY CLOSED IN OCCUPIED MODE.
USE A2 AND A3 WHEN CONTACTS ARE NORMALLY OPEN IN OCCUPIED MODE.
3
CONNECT GND TO EARTH GROUND.
4
USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.
M16057
Fig. 11. Typical hookup of T7300F/Q7300H in three-stage heat and two-stage cool heat pump system.
SUBBASE
AS
AS
RC
Y1
G
Y2
Y3 X W3
W2
W1 RH
3
A2 A3
A1
C5
C4
C3
C2
C1
T
T
EB EB
2
COMPRESSOR
CONTACTOR 1
DISCHARGE
AIR
SENSOR
COMPRESSOR
CONTACTOR 2
HEAT
RELAY 2
ECONOMIZER
5
FAN
RELAY
LonWorks®
BUS
CA2
CA1
T
CA5
CA4
CA3
T7147 REMOTE COMFORT ADJUST MODULE
COMPRESSOR
CONTACTOR 3
LonWorks®
BUS
GND
1
HEAT
RELAY 3
L1
(HOT)
T
HEAT
RELAY 1
4
L1
(HOT)
L2
L2
1
HEATING
TRANSFORMER
COOLING
TRANSFORMER
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
2
JUMPER RC TERMINAL TO RH TERMINAL WHEN INSTALLED ON A
SYSTEM WITH ONE TRANSFORMER.
3
USE A1 AND A2 WHEN CONTACTS ARE NORMALLY CLOSED
IN OCCUPIED MODE. USE A2 AND A3 WHEN CONTACTS
ARE NORMALLY OPEN IN OCCUPIED MODE.
4
CONNECT GND TO EARTH GROUND.
5
USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.
M16058
Fig. 12. Typical hookup of T7300F/Q7300H in three-stage heat and three-stage cool conventional system.
62-0155—3
6
62-0155.fm Page 7 Monday, March 21, 2005 9:40 AM
Q7300H SERIES 2000 COMMERCIAL THERMOSTAT SUBBASES
SUBBASE
AS FC
AS
GL
GH
X
R
Y
HIGH
SPEED
FAN
RELAY
DISCHARGE
AIR
SENSOR
LOW
SPEED
FAN
RELAY
RM BM
P1
ML7984
VALVE
ACTUATOR
COOLING
RELAY
P2
3
A1
A2
C5
C4
C3
C2
C1
T
EB EB
T
DAMPER
CONTROL
RELAY
LonWorks® BUS
CA5 CA4 CA3 CA2 CA1 T T
T7147 REMOTE COMFORT
GND
ADJUST MODULE
PUMP
INTERLOCK
RELAY
1
L1
(HOT)
L1
(HOT)
L2
L2
LonWorks® BUS
2
1
TRANSFORMER
FAN TRANSFORMER
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2 CONNECT GND TO EARTH GROUND.
M16059
3 SEE TABLE 2 FOR VALVE AND VALVE ACTUATOR MODELS.
Fig. 13. Typical hookup of T7300F/Q7300H in two-stage heat and one-stage cool conventional system.
Mount Thermostat on Subbase
A. ENGAGE TABS AT TOP OF THERMOSTAT AND SUBBASE OR WALLPLATE.
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.
B. PRESS LOWER EDGE OF CASE TO LATCH.
M4824A
Fig. 14. Mount thermostat on subbase.
7
62-0155—3
62-0155.fm Page 8 Monday, March 21, 2005 9:40 AM
Q7300H SERIES 2000 COMMERCIAL THERMOSTAT SUBBASES
OPERATION
Refer to Table 5 for Q7300H2037 Subbase operation sequence.
Table 5. Q7300H2037 Subbase Operation Sequence.
Mode
Occupied
Fan
System
Equipment
Setting Settinga
Call
Any
Auto
—
Damper control relay energized.
—
On
—
Last system dependant . Last system is cool: call is for high GL or GH
speed fan. Last system is heat: call is for low speed fan.
Heat
Auto
Stage 1
heat
Hydronic applications: ML7984 approximately one-half
A2, GL,
open. Pump interlock relay activated to energize circulator RM, BM,
pump. Conventional applications: stage 1 heat is activated. P2
Low-speed fan is activated.
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
Any
—
Damper control relay de-energized.
—
On
—
System fan operates at appropriate speed with call for heat
or cool equipment.
Unoccupied Any
a
Loads
Energized
Action
A2
Low 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.
Home and Building Control Home and Building Control
Honeywell
1985 Douglas Drive North
Golden Valley, MN 55422
62-0155—3
B.B. 3-01
Honeywell Limited-Honeywell Limitée
35 Dynamic Drive
Scarborough, Ontario
M1V 4Z9
Printed in U.S.A. on recycled
paper containing at least 10%
post-consumer paper fibers.
www.honeywell.com
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