Honeywell V8043A Thermostat User Manual

Home

href="
V4043, V8043 SWEAT COPPER CONNECTION MODELS  
5
6
V8043A,E,F 5000 Series  
3
-1/2 (89)  
1
ZONE VALVES  
7
/8 DIA.  
2-3/8  
(60)  
1-3/4 1-3/4  
(44)  
(
22)  
(44)  
APPLICATION  
8
5
-1/4  
These valves consist of a motorized  
actuator and valve assembly for controlling  
the flow of hot water to a heat exchanger  
such as a radiator, convector, finned  
baseboard radiator, or infloor radiant coil  
for space temperature control. The V8043  
(
133)  
1
(
-1/2  
38)  
3/8  
(10)  
AUTO MAN OPEN  
1
2
HEIGHT NEEDED TO REMOVE COVER.  
DIMENSIONS FOR 1/2 IN. COPPER TUBING.  
DIMENSIONS FOR 3/4 IN COPPER TUBING.  
DIMENSIONS FOR 1 IN. COPPER TUBING.  
IN  
A
B
OUT  
5
000 series valves provide two-position,  
7
3
4
straight through control of supply water at  
up to 300 psi operating pressure.  
15/32  
12)  
1-5/16  
(
2
(33)  
Quick Fit actuator provides easy snap on and  
off connection to the valve assembly.  
4
-7/8 IN. (124) MAX ON V8034F WITH TERMINAL  
2
-5/8  
5
6
BOARD ENCLOSURE.  
(
66)  
1
(35)  
-3/8  
V4034B AND V8043B VALVES THAT ARE  
NORMALLY OPEN IN THE DE-ENERGIZED  
POSITION HAVE NO MANUAL LEVER.  
Patent Pending  
3
SPECIFICATION  
2-3/4  
70)  
(
7
REFER TO MOUNTING INSTRUCTIONS.  
1-11/16  
43)  
4
(
Actuator Electrical Rating:  
Actuator Materials:  
OPENING FOR 1/2 IN. CONDUIT ON MANUAL  
LEVER SIDE FOR V4043, V8043.  
8
3-3/8  
86)  
2
5
4Vac 60 Hz, 0.30 A Current Draw,  
W, 7.2 VA maximum  
Case:galvanized steel.  
Cover : zinc plated steel.  
Sector gear: Brass  
(
M10175.A4  
Fig. 1 - Mounting Dimensions in in. (mm in Brackets)  
Electrical Connection:  
8” leads or screw terminal board  
Auxiliary Switch Rating:  
1
Valve Material:  
Body of forged brass; drive shaft stem of  
stainless steel; ball plug of Buna-N rubber;  
o-ring seals of EPDM rubber.  
1
5
20V, 4.4A running, 26.4A Inrush (60 Hz);  
0 VA Pilot duty at 24 V.  
CAUTION  
3. Installer must be a trained, experienced  
service technician.  
. After installation is complete, check out  
product operation as provided in these  
instructions.  
1
. Disconnect power supply before  
connecting wiring to prevent electrical  
shock or equipment damage.  
Service Medium:  
Fluid Temperature:  
Standard models (class F motor):  
4
Suitable for glycol/water mix up to 50:50  
use in closed hydronic systems. Not for  
use with oxygenated water, potable water  
or steam.  
Use this valve in hydronic systems which  
do not contain dissolved oxygen in the  
system water. The dissolved oxygen,  
which is found in systems that have a  
frequent source of make-up water, causes  
the rubber plug inside the valve to  
2
. Normally it is not necessary to remove  
the actuator from the valve body during  
installation. If the valve must be  
disassembled, be certain that it is  
reassembled with the water flow in the  
direction of the arrow. Reversal of the  
actuator results in damage to the gear  
train.  
. On 24V systems, never jumper the  
valve coil terminals even temporarily.  
This can burn out the heat anticipator in  
the thermostat.  
2
00° F (93° C) Max.  
Ambient Temperature:  
25°F (52° C) Max.  
Humidity Limits:  
5% Relative Humidity, Non-condensing  
Shipping and Storage Temperature:  
40°F to 150°F (-40°C to 65°C).  
1
Location  
Install the valve in an area with adequate  
clearance to:  
9
-
Move the manual opening lever on the  
side of the actuator  
Remove the actuator cover  
-
-
3
Atmosphere:  
Non-corrosive, non explosive.  
Maximum Soldering Temperature:  
- Wire the actuator  
deteriorate and eventually fail.  
- Replace the actuator motor  
Approvals:  
CSA C/US Certified to Canadian Standards  
Association and Underwriter's Laboratories  
Standards.  
The valve location should be in an area  
where the temperature does not exceed the  
maximum valve operating ambient  
500°F (260°C). Rubber ball plug must be  
moved away from the seat for soldering.  
Maximum System Pressure Rating:  
INSTALLATION  
temperature and fluid temperatuare.  
300 psi (2000 kPa), PN20.  
When Installing this Product…  
Flow Characteristics:  
Quick opening for on-off application.  
Slow return for water hammer resist.  
Maximum Close-off Rating (@ Flow  
Capacity Rating) :  
Manual Lever  
MODELS  
1. Read these instructions carefully. Failure  
to follow them could 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.  
The V8043 normally closed valves can be  
opened manually by moving the manual lever  
slowly and firmly to the MAN. OPEN position  
and pushing up to the stop. The stop permits  
the valve to be locked in the open position.  
The valve returns to automatic position when  
it is energized.  
V8043 (Straight through, Normally Closed)  
V8043A: Leadwires  
V8043E: Leadwires and End Switch  
V8043F: Terminal Board and End Switch  
2
2
8
0 psi (@ 3.5 Cv)  
psi (@ 8 Cv)  
2
004.09 Printed in Canada  
1
Form No. 95C-10932  
2
href="
4
. Line up motor coupling to the parallel flat  
surfaces in double-D shaft of body and fit  
the actuator onto the valve body,  
ensuring that the shaft seats correctly.  
(See Fig. 5)  
MOUNTING  
THERMOSTAT  
(TYPICALLY T87F)  
TO  
LINE  
The valve can be mounted in any position  
on a vertical line. See Fig. 2. If the valve is  
mounted horizontally; the actuator must be  
even with or above the center line of the  
piping. Make sure to leave enough room  
above the actuator to remove the cover for  
servicing.  
thermostat or controller connected to the  
valve so that the valve runs through its  
cycle. Make sure the valve runs  
smoothly and positively from closed to  
open to closed again. (See Operation  
and Checkout Sections.)  
TO CIRCULATOR  
OR ANOTHER VALVE  
YELLOW  
LEADS  
5. Snap actuator onto body by pressing  
down.  
6.The manual lever may be released  
manually, but it is also automatically  
released when the valve is operated  
RED LEADS  
MOTOR  
AUXILIARY  
SWITCH  
Mount the valve directly in the tube or pipe  
after the coil. Make sure that the flow  
through the valve is in the direction  
indicated by the arrow stamped on the  
valve body.  
TO REMOVE THE ACTUATOR FROM THE  
VALVE BODY (See Fig. 3)  
electrically.  
Parallel flat surfaces  
align with Notch on  
side of valve body  
NOTE!  
Double-D  
Shaft  
It is not necessary to drain the hydronic  
system if the valve body assembly remains in  
the pipe line.  
Notch  
M5953  
1
. Switch power supply OFF. Disconnect  
electrical leads carefully, noting the  
position and colour of each lead.  
Fig. 6 - Typical wiring for V8043E, V8044E.  
2. Place the manual lever in the MAN.  
OPEN position.  
R
THERMOSTAT  
Fig. 4 - Shaft Position  
3
. Remove actuator by fully depressing  
spring release button and lift it straight  
off of the body.  
(TYPICALLY T87F)  
HORIZONTIAL  
PIPING  
Actuator  
Coupling  
TO CIRCULATOR  
OR ANOTHER  
VALVE  
VERTICAL  
PIPING  
M10162  
END SWITCH  
Notch Tab  
Fig. 2 - Mounting Positions  
TH  
TR TH  
TR  
1
L1  
(
HOT)  
1
. PLACE MANUAL  
L2  
Sweat Copper Models  
AUTO  
OPEN  
LEVER IN OPEN  
POSITION  
24V  
TRANSFORMER  
1. Use new, properly reamed pipe, free  
from dents or corrosion.  
2
. DEPRESS  
Notch  
2
. Place the valve on the pipe. Set the  
manual opening lever to MAN. OPEN  
position before applying heat. This  
protects the plug inside the valve by  
removing it from the seat.  
LOCKING  
BUTTON  
3
. LIFT ACTUATOR  
STRAIGHT UP  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND  
OVERLOAD PROTECTION AS REQUIRED.  
M5952  
Fig. 5 - Installing Actuator  
Fig. 7 - Typical wiring for V8043F.  
3
. Sweat the joints, keeping the outer  
surface free from solder. DO NOT use  
silver solder because of the high  
melting temperature required.  
Fig. 3 - Removing Actuator from Valve Body  
WIRING  
Disconnect the power supply before  
connecting wiring to prevent electrical shock  
or equipment damage.  
All wiring must comply with local codes and  
ordinances. Connections to the individual  
valves are shown in Fig. 6 and 7. See Fig. 8  
through 14 for typical hookups.  
If replacing a Taco, Dole, Flair or White  
Rodgers 3-wire valve with a 2-wire V8043E or  
F, see Fig. 15 through 27. Check that the  
pressure rating of the new valve is  
T822  
T822  
T822  
TO INSTALL REPLACEMENT ACTUATOR  
ON THE VALVE BODY  
TO INSTALL A COMPLETE VALVE (V8043):  
L1  
(HOT)  
L2  
1. Disconnect power supply before  
1
. Align the parallel flat surfaces in  
double-D shaft of valve body with  
notch in side of body (i.e. 90° to water  
flow.) See Fig. 4. This makes actuator  
attachment easier.  
connecting wiring to prevent electrical  
shock or equipment damage.  
1
2
2
2
2. Install valve into pipe on the return side  
of the coil. (See Mounting Section.)  
3. Make wiring connections to valve. (Refer  
to Wiring section for proper instructions.)  
4. Inspect the valve installation to ensure  
that all connections and adjustments  
have been correctly made. Adjust the  
V8043A  
V8043A  
V8043A  
2
. Wiring connections may be made either  
before or after actuator installed on  
valve body.  
1
2
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD  
PROTECTION AS REQUIRED.  
appropriate for the application.  
3. Place the manual lever on the  
CONNECT V8043A BLACK LEADWIRE TO THERMOSTAT.  
M10168  
actuator in the MAN. OPEN position.  
Fig. 8 - T822 Thermostat, V8043A valve hookup.  
3
4
href="
CONNECTIONS FOR V8043E  
(LEADWIRE MODEL)  
T822  
T822  
T822  
T822  
T822  
T822  
ZONE V8043E  
ZONE 1  
ZONE 2  
ZONE 3  
ZONE 4  
L1  
END SWITCH  
END SWITCH  
END SWITCH  
END SWITCH  
L1  
(
HOT)  
(HOT)  
L2  
L2  
TO  
1
V8043F  
V8043F  
V8043F  
V8043F  
1
CIRCULATOR  
CONTROL  
CIRCUIT  
2
2
2
RED  
RED  
2
2
2
B
B
R
TH-TR  
TH  
TR  
TH-TR TH  
ZONE 2  
TR  
TH-TR TH  
ZONE 3  
TR  
TH-TR  
TH  
TR  
ZONE 4  
V8043E  
3
V8043E  
3
V8043E  
3
V8043E  
3
V8043E  
3
V8043E  
3
ZONE 1  
YELLOW  
B
B
R
B
B
R
B
B
R
B
W
YELLOW  
B
R
BR  
INTEGRAL  
TRANSFORMER  
W775A PANEL  
L4006A  
HIGH  
LIMIT  
L1  
W
W
W
W
POWER (HOT)  
SUPPLY  
L2  
BR  
BR  
BR  
BR  
TO OIL PRIMARY  
CONTROL OR TO  
TRANSFORMER  
AND LOW VOLTAGE  
GAS VALVE  
W775A PANEL  
T
T
B1  
B2  
TO BURNER  
CONTROL  
CIRCUIT  
T87F  
T87F  
T87F  
T87F  
1
2
M5980  
Fig. 13 - Typical 4-zone system. Use an additional W775A to power up to four more zone valves.  
CIRCULATOR  
C1 C2  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD  
PROTECTION AS REQUIRED.  
TO BURNER  
AND / OR  
CIRCULATOR  
CIRCUIT  
2
3
CONNECT V8043E YELLOW LEADWIRE TO THERMOSTAT.  
CONNECT V8043E RED LEADWIRES TO L1 (HOT) LINE AND  
ZONE 1  
ZONE 2  
ZONE 3  
ZONE 4  
ZONE 5  
T87F  
T87F  
T87F  
T87F  
T87F  
PRIMARY CONTROL.  
M10169  
CIRCULATOR  
Fig. 9 - T822, V8043E zone hookup for gas or oil. No domestic hot  
water.  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD  
PROTECTION AS REQUIRED.  
V8043F  
V8043F  
V8043F  
V8043E  
V8043E  
END SWITCH  
END SWITCH  
END SWITCH  
YELLOW  
YELLOW  
2
3
CONNECT V8043E YELLOW LEADWIRE TO THERMOSTAT.  
YELLOW  
RED  
YELLOW  
RED  
CONNECT V8043E RED LEADWIRES TO AQUASTAT®.  
M10170  
Fig. 10 - T822, V8043E zone hookup for gas or oil with or ithout  
domestic hot water. Without domestic hot water, use L8148J for  
gas, and L8148A for oil. With domestic hot water, use L8124E for  
gas, and L8124A or C for oil.  
TH-TR TH TR  
TH-TR TH TR  
TH-TR TH TR  
RED  
RED  
L1  
HOT)  
L2  
(
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND  
OVERLOAD PROTECTION AS REQUIRED.  
V4044, V8044  
VALVE OPERATOR  
HEATING  
COOLING  
THERMOSTAT  
1
AT87A  
TRANSFORMER  
ZONE 1  
T87F  
ZONE 2  
T87F  
ZONE 3  
T87F  
RED  
NOTE: IF CODE PERMITS, V8043E AND V8043F CAN BE USED INTERCHANGEABLY WHEN WIRED AS SHOWN.  
M10164  
V8043F  
V8043F  
V8043F  
Fig. 14 - Typical 5-zone system. Use an AT87A Transformer to power up to five more zone valves.  
1
BLUE  
TO  
POWER  
END SWITCH  
END SWITCH  
TH-TR TH TR  
END SWITCH  
TH-TR TH TR  
ADD  
JUMPER  
TO EACH  
VALVE  
YELLOW  
V8043E  
C
TH-TR TH TR  
1
YELLOW  
MOTOR  
THERMOSTAT  
L1  
HOT)  
1
TACO VALVE  
(
L1  
A
A
B
B
(HOT)  
L2  
YELLOW  
L1  
(HOT)  
1
AQUASTAT® CHANGEOVER CONTROL SWITCHES TO HEATING (RED)  
AT FLUID TEMPERATURE OF 85°F (29°C) MAX TO COOLING (BLUE) AT  
FLUID TEMPERATURE OF 60°F (18°C) MIN.  
TV  
T
Z
2
1
120 V  
POWER  
SUPPLY  
1
2
3
L2  
THERMOSTAT  
L8124G  
L2  
C
M10171  
D
E
RED  
RED  
C1 C2  
B1 B2  
TO  
AUXILIARY  
CIRCUITS  
D
E
TO AUXILIARY  
CIRCUITS  
TO  
TO BURNER  
CIRCUIT  
CIRCULATOR  
M5954  
Fig. 11 - Wiring diagram for V4244 and V8244 with Aquastat®  
changeover control.  
Fig. 12 - Typical 3-zone system. Use an AT87A Transformer  
to power up to five more zone valves.  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS  
AND OVERLOAD PROTECTION AS REQUIRED.  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS  
AND OVERLOAD PROTECTION AS REQUIRED.  
M5958  
M10163  
Fig. 15 - ExistingTaco system. (Wires are identified with  
letters to correspond with wires in Fig. 16 and 17.)  
Fig. 16 - Wiring Honeywell V8043E toTaco System (Wires are  
identified with letters to correspond with wires in Fig. 15.)  
5
6
href="
V8043F  
V8043F  
V8043F  
END SWITCH  
END SWITCH  
V8043F  
END SWITCH  
F
E
D
E
END SWITCH  
TO  
AUXILIARY  
CIRCUITS  
F
E
TO TERMINALS  
T, T ON  
BURNER RELAY  
1
1
1
TO TERMINALS  
T, T ON  
BURNER RELAY  
TO AUXILIARY  
CIRCUITS  
2
L1  
(HOT)  
A
L1  
HOT)  
C
A
L1  
(HOT)  
A
(
L1  
HOT)  
L2  
L2  
(
L2  
L2  
B
1
B
TH-TR TH  
TR  
TH-TR TH  
TR  
TH-TR TH  
TR  
TH-TR TH  
TR  
C
D
C
D
B
5
6
THERMOSTAT  
V8043F  
THERMOSTAT  
V8043F  
4
THERMOSTAT  
V8043F  
3
THERMOSTAT  
END SWITCH  
END SWITCH  
END SWITCH  
F
E
END SWITCH  
F
E
TO TERMINALS  
T, T ON  
BURNER RELAY  
1
TO TERMINALS  
T, T ON  
BURNER RELAY  
TO AUXILIARY  
CIRCUITS  
D
E
1
2
L1  
(HOT)  
TO  
AUXILIARY  
CIRCUITS  
A
1
L1  
(HOT)  
A
L1  
HOT)  
C
A
L1  
(HOT)  
L2  
(
L2  
B
B
TH-TR TH  
TR  
1
TH-TR TH  
TR  
L2  
L2  
TH-TR TH  
TR  
TH-TR TH  
TR  
B
D
D
C
C
1
2
3
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND  
OVERLOAD PROTECTION AS REQUIRED.  
THERMOSTAT  
THERMOSTAT  
IF TRANSFORMER SUPPLIES POWER TO AUXILIARY CIRCUIT,  
WIRE AUXILIARY CIRCUIT AS SHOWN IN LOWER DIAGRAM.  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND  
OVERLOAD PROTECTION AS REQUIRED.  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND  
OVERLOAD PROTECTION AS REQUIRED.  
THERMOSTAT  
M5966  
M5966  
Fig. 23 - Wiring Honeywell V8043F to Flair System (two options).  
Wires are identified with lettersto correspond with wires in Fig. 21.)  
TAPE UNUSED END AND TUCK INTO HOLE.  
M5713  
(
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND  
OVERLOAD PROTECTION AS REQUIRED.  
Fig.20 -.Wiring Honeywell V8043F to Dole System (two options).  
(Wires are identified with letters to correspond with wires in Fig. 18.)  
Fig. 26 - Wiring Honeywell V8043F to White-Rodgers System  
one option).  
(
M5960  
WHITE-RODGERS  
TO AUXILIARY  
WATER VALVE  
THERMOSTAT  
1311 OR 1321  
VALVE  
Fig. 17 - Wiring Honeywell V8043F to Taco System (two options).  
Wires are identified with letters to correspond with wires in Fig. 15.)  
CIRCUIT  
FLAIR VALVE  
E
(
TO TERMINALS  
T, T ON  
BURNER RELAY  
5
6
6
4
3
2
1
1
1
3
L1  
(HOT)  
L1  
(HOT)  
A
B
F
4
DOLE VALVE  
2
5
L2  
A
L2  
1
4
V8043F  
1
3
1
2
4
L1  
HOT)  
END SWITCH  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD  
PROTECTION AS REQUIRED.  
(
TO  
B
C
D
5
2
AUXILIARY  
CIRCUIT  
L2  
M5711  
Fig. 24 - Existing White-Rodgers System.  
C
D
L1  
THERMOSTAT  
(HOT)  
F
E
1
1
L2  
L1  
HOT)  
L2  
TH  
TR  
TH-TR  
TO TERMINALS  
T, T ON  
BURNER RELAY  
(
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS  
AND OVERLOAD PROTECTION AS REQUIRED.  
THERMOSTAT  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND  
OVERLOAD PROTECTION AS REQUIRED.  
M5977  
5
6
5
6
YELLOW  
M5978  
4
Fig. 18 - Existing Dole System. (Wires are identified with letters to  
correspond with wires in Fig. 19 and 20.)  
3
4
YELLOW  
RED  
Fig. 21 - Existing Flair System. (Wires are identified with  
letters to correspond with wires in Fig. 22 and 23.)  
3
THERMOSTAT  
END SWITCH  
THERMOSTAT  
V8043E  
RED  
TO  
AUXILIARY  
CIRCUIT  
A
V8043E  
2
1
YELLOW  
A
TO AUXILIARY  
L1  
HOT)  
1
YELLOW  
2
L1  
(
CIRCUIT  
B
C
D
L1  
TO  
(HOT)  
L2  
1
L2  
YELLOW  
(HOT)  
AUXILIARY  
CIRCUIT  
B
C
D
1
L1  
HOT)  
L2  
L2  
YELLOW  
YELLOW  
THERMOSTAT  
TO 6 ON  
THERMOSTAT  
E
F
RED  
RED  
(
1
2
3
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND  
OVERLOAD PROTECTION AS REQUIRED.  
RED  
RED  
THERMOSTAT  
TO TERMINALS  
T, T ON  
BURNER RELAY  
E
F
RED  
RED  
TO TERMINALS  
T, T ON  
BURNER RELAY  
IF TRANSFORMER SUPPLIES POWER TO AUXILIARY CIRCUIT,  
WIRE AUXILIARY CIRCUIT AS SHOWN IN LOWER DIAGRAM.  
1
2
3
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND  
OVERLOAD PROTECTION AS REQUIRED.  
TAPE UNUSED END AND TUCK INTO HOLE.  
M5714  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS  
AND OVERLOAD PROTECTION AS REQUIRED.  
IF TRANSFORMER SUPPLIES POWER TO AUXILIARY CIRCUIT,  
WIRE AUXILIARY CIRCUIT AS SHOWN IN LOWER DIAGRAM.  
M5965  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS  
AND OVERLOAD PROTECTION AS REQUIRED.  
Fig. 27 - Wiring Honeywell V8043F to White-Rodgers System  
alternate option).  
M5965  
(
Fig. 19 - Wiring Honeywell V8043E to Dole System. (Wires are  
identified with letters to correspond with wires in Fig. 18.)  
TAPE UNUSED END AND TUCK INTO HOLE.  
M5712  
Fig. 22 - Wiring Honeywell V8043F to Flair System. (Wires are  
identified with letters to correspond with wires in Fig. 21.)  
Fig. 25 - Wiring Honeywell V8243E to White-Rodgers System.  
8
7
href="
OPERATION  
CAUTION  
On 24V systems, never jumper the valve  
A
B
A
B
coil terminals even temporarily. This can  
burn out the heat anticipator in the  
thermostat.  
IN  
OUT  
IN  
OUT  
OPEN POSITION  
A
CLOSED POSITION  
B
M5951  
Automatic Operation  
Fig. 28 - V8043 operation for normally closed valve.  
On a call for heat by the zone thermostat,  
the valve opens and its auxiliary switch  
contacts make, closing the circuit to the  
system circulator. In a multizone system with  
all the valve auxiliary switches wired in  
parallel, any zone calling for heat can operate  
the circulator. When the call for heat ends, the  
valve closes by integral spring return. The  
auxiliary switch contacts break the circulator  
circuit.  
CHECKOUT  
1.  
Raise the setpoint on the zone  
thermostat above the room  
temperature to initiate a call for heat.  
Observe all control devices—the valve  
should open and the auxiliary switch  
should make the circuit to the  
2.  
circulator or other valve at the end of  
the opening stroke.  
3. Lower the setpoint on the zone  
thermostat to below the room  
temperature.  
Manual Operation  
The motorized valve can be opened  
manually by lifting the manual opening lever  
over the stop and pushing slowly and firmly to  
the MAN. OPEN position. The stop permits  
the valve to be locked in the open position.  
The valve returns to automatic position when  
the valve is energized.  
4.  
Observe the control devices. The valve  
should close and the auxiliary  
equipment should stop.  
SERVICE  
Normally Closed Models  
This valve should be serviced by a trained,  
experienced service technician.  
With the manual opener set to AUTO and  
the actuator energized, the valve is opened  
as shown in Fig. 28A. When the actuator is  
de-energized, a spring-return mechanism  
drives the valve to the closed position as  
shown in Fig. 28B. The valve can also be  
opened with no electrical power by moving  
the manual opening lever over the stop and  
pushing slowly and firmly to the MAN. OPEN  
position. The stop permits the valve to be  
locked in the open position.  
1.  
If the valve is leaking, drain the system  
and check to see if the O-ring needs  
replacing.  
2. If the gear train is damaged, replace  
the entire actuator assembly. See the  
Installation section. If the motor is  
burned out, replace the motor. See  
Replacement Parts list in the  
TRADELINE® Catalog.  
NOTE: Honeywell zone valves are designed  
and tested for silent operation in  
properly designed and installed  
systems; however, water noises can  
occur as a result of excessive water  
velocity or piping noises can occur in  
high temperature (higher than 212°F  
(100°C) systems with insufficient water  
pressure. Valves are designed for  
normal cycling operations. Product life  
will be shortened if energized  
The valve returns to the automatic position  
when the valve is energized.  
Auxiliary switch is not energized when  
the valve is manually opened.  
NOTE: Flow direction arrow is stamped on  
the valve body indicating flow  
direction from Inlet Port A to Outlet  
Port B.  
Automation & Control  
Honeywell  
985 Douglas Drive North  
Golden Valley  
MN 55422-3992  
In Canada  
Honeywell Limited/Limitée  
35 Dynamic Drive  
Toronto, Ontario  
M1V 4Z9  
1
continuously.  
9
10  

White Rodgers 50A55 474 Thermostat User Manual

Honeywell RTH6580WF Thermostat User Manual

Honeywell Y460A2003 Thermostat User Manual

Honeywell T694J Thermostat User Manual

Honeywell T8621D Thermostat User Manual

Honeywell T8131 Thermostat User Manual

Honeywell 4500 Thermostat User Manual

Honeywell TB6980 Thermostat User Manual

Lux Products 52157 Thermostat User Manual

Honeywell T8602A C Thermostat User Manual