White Rodgers 1311 User Manual

WHITE-RODGERS

Operator: Save these instructions for future use!

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL
INJURY AND/OR PROPERTY DAMAGE.

These water valves provide a low cost system of zoned tem­perature control wherever hot water is the heating medium. In
new construction, the heating piping system can be laid out to
produce any number of independent temperature controlled
zones by use of these valves.

In existing buildings, a variety of zone heating combinations can
be obtained, depending on the particular piping lay-outs. Each
zone requires one water valve and one thermostat, but only
one circulator is required for the entire system. New con­struction properly piped, will not require flow control valves,
since the water valve itself performs this function.

Existing construction, where flow control valves have been
installed, will operate quite satisfactorily without removing the
existing flow control valves.

TYPE 1311

HYDRONIC ZONE VALVES

(3 WIRE)

INST ALLA TION INSTRUCTIONS

DESCRIPTION

This zone valve motor is intended for use with a low voltage
system; do not use this zone valve with a millivolt or line voltage
system. If in doubt about whether your wiring is millivolt, line or
low voltage, have it inspected by a qualified heating contractor
or electrician.

Do not exceed the specification ratings.
All wiring must conform to local and national electrical codes and

ordinances.

CAUTION

!

To prevent injuries from scalding always drain system
before unlatching valve assembly from body.

All guarantees are void if these specifications are exceeded.

Maximum water temperature: 240°F (115°C)
Maximum system pressure: 50 PSI
Differential across valve: 15 PSI
Electrical Rating:

Valve Motor: 25 VAC (.40 Amp.)
Auxiliary Contacts: Do not exceed 2.0 Amp. at 25 VAC

(Terminals 2 and 3)

The schematic shows the valve in the closed position. As the
thermostat calls for heat, the valve motor is energized and
begins to open the valve. Soon thereafter side “A” of motor
switch makes with the holding contacts. This contact provides a
holding circuit to prevent the valve from stopping part way
through its cycle if the thermostat is changed to the satisfied

PRECAUTIONS

CAUTION

!

To prevent electrical shock and/or equipment damage,
disconnect electric power to system at main fuse or
circuit breaker box until installation is complete.

WARNING

!

Do not use on circuits exceeding specified voltages.
Higher voltages will damage control and could cause
shock or fire hazard.

SPECIFICATIONS

Timing: Approximately 45 seconds from full open to full close

or full close to full open.

Friction loss equivalents:

3/4" valve – 2-1/2 ft. copper tubing
1" valves – 4 ft. copper tubing
1-1/4" valves – 7 ft. copper tubing

PRINCIPLE OF OPERATION

position. Just before the valve reaches the full-open position,
side “B” of motor switch closes (providing a low voltage auxiliary
circuit for starting burner and/or circulator). The motor stops with
the valve in the open position when side “A” of motor switch
breaks the holding contact. (Completing a circuit through con­tact “6” and the thermostat anticipator.)

WHITE-RODGERS DIVISION

EMERSON ELECTRIC CO.
9797 REAVIS RD., ST. LOUIS, MO. 63123
[phone], Fax [phone]

9999 HWY. 48, MARKHAM, ONT. L3P 3J3
[phone], FAX [phone]

Printed in U.S.A.

PART NO. 37-5421B

Replaces 37-5421A

9812

PRINCIPLE OF OPERATION (Continued)

When thermostat is satisfied, the valve motor is again ener­gized. Just after the valve starts to close, side “A” of motor switch
makes with holding contact providing a holding circuit. The side
“B” of motor switch opens (breaking auxiliary circuit), and side
“A” of motor switch makes with contact “4” then breaks the
holding circuit stopping the valve in the closed position. (Fig. 2)

The contact arrangement is constructed so that when the shaft
of the motor revolves 90° a new set of stationary contacts makes
while the old set breaks. (Fig. 1)

WATER VALVE
THERMOSTAT

5

CALL FOR

HEAT

ANTIC.

▼

INTERNAL

WIRING
EXTERNAL
WIRING

6

▼

SATISFIED

4

CLOSED

▼

POSITION

SIDE “A” OF

MOTOR SWITCH

SIDE “B” OF

MOTOR SWITCH

Fig. 2

5

6

HOLDING

CONTACT

4

▼

▼

SCHEMATIC OF VALVE

SIDE “A”

OPEN

POSITION

▼

MOTOR

2

3

▼

▼

1

TO AUXILIARY CIRCUIT
FOR OPERATING BURNER
AND/OR CIRCULATOR.
(NOTE: IF SAME TRANS­FORMER POWERS BOTH
THE AUXILIARY CIRCUIT
AND THE WATER VALVE,
CONNECT AUXILIARY CIR­CUIT TO TERMINALS 1 AND
3 INSTEAD OF 2 AND 3.)

SIDE “B”

OPEN

POSITION

TRANSFORMER

PIPING

NOTE: INTERNAL PARTS AND
WIRING OF WATER VALVE.

STATIONARY CONTACTS
(TERMINALS 2 , 6 & COM.)

JUMPER WIRES

LINE

MOTOR SHAFT:
Revolves in 90° intervals

▼

2

▼

6

COMMON

▼

▼

▼

▼

▼

▼

▼

STATIONARY CONTACTS
(TERMINALS 2, 4 & COM.)

with each thermostat cycle.

▼

▼

▼

2

▼

4

2

▼

ROTATING BOARDS:
Each Board makes/breaks
1 set of contacts with each
90° revolution of motor
shaft on thermostat
demand.

STATIONARY CONTACTS

(TERMINALS 2 & 3)

▼

▼

3

(Valve is shown in the open position)

Fig. 1

NOTE: To check motor operation without thermostat

connected, jumper 4 to 5 to open valve; jumper
5 to 6 to close valve.

The two most commonly used piping systems are
shown below. Plan 1 is popular for new installations,
while plan 2 is frequently used for converting two-pipe
systems.

This valve does not seal completely. A small amount of
leakage through valve is permitted. The amount de­pends on valve size and pressure differential across
closed valve. Do not use if your application requires

PLAN 1

Water valves installed at the boiler
header to provide a separate sup­ply to each zone.

Fig. 3

complete seal off. Maximum leakage at rated differen-

tial is two, four or six gal. per hour for 3/4", 1" or 1-1/4"
valves, respectively.

PLAN 2

A common main supplies all
zones, with a water valve installed
on the riser to each zone.

INSTALLATION

ALL GUARANTEES ARE VOID IF THE VALVE IS NOT ASSEMBLED ACCORDING TO THESE INSTRUCTIONS.

1. Remove body assembly only from shipping carton. Valve
head and stem should be left in carton at this time for
protective purposes. Do not assemble head to body before

attaching body into line.

2. Mount the valve body in the line in any desired position
except upside down. CAUTION: Provide the necessary
clearances for turning valve head sideways when assem­bling it to valve body (see fig. 3). Note that terminal end of
valve head requires more clearance.

3. Be sure that any excess solder, flux, or other foreign matter
is thoroughly removed from the valve bore.

4. With valve body mounted in the line, remove the head
assembly from the carton, and carefully wipe stem with a soft
cloth to remove any dust or grit.

5. The valve head may now be assembled to the valve body.
With valve head positioned as shown in figure 5, insert valve
stem into valve bore, push downward, and turn valve head
until it locks to valve body.

6. Support piping with a pipe hanger on each side of valve. The
valve is now ready to be wired.

729

Fig. 4

CAUTION

!

Use only silicone grease, water, or soap suds on O-ring
or Valve Body to facilitate assembly. Use of vaseline or
any petroleum grease or oil will cause O-ring to deterio­rate.

CAUTION

!

Be sure that bayonet lock securely latches mounting
plate to body. Failure to do so could allow valve head
to separate from body and result in scalding injuries
and/or water damage.

2

T2

T1-V1

V2-L1

Z-L2

CAUTION

!

To prevent injuries from scalding always drain system
before unlatching valve assembly from body.

Clearances required for assembling valve head to valve body.

All wiring should be done according to local and national electrical codes

VALVE

HEAD

BODY

STEM

2" MINIMUM
CLEARANCE

2-3/4" MINIMUM
CLEARANCE

Fig. 5

▼

▼

▼

▼

WIRING

For best connections, use #18 Thermostat wire. #16 will also
work satisfactorily.

Make connections to screw terminals according to wiring dia­gram.

NOTE: To check motor operation without thermostat con­nected, jumper 4 to 5 to open valve; jumper 5 to 6 to close

Do not attempt to wire two or more zone valves in
parallel to operate from a single thermostat. (If valves
are wired in parallel, the motors may run continuously,
due to feedback between the motor holding circuits.)

CAUTION

!

valve.

If the boiler manufacturer recommends a wiring diagram, follow
his instructions. If none are available, the following diagrams
show suggested circuits for Type 1311 Water Valves in conjunc­tion with other W-R controls.

A 40 VA transformer will handle up to four (4) water valves. A 20

4

56

4

56

4

56

4

56

4

VA transformer will handle up to two (2) water valves.

2

452

DIAGRAM FOR SYSTEMS WHERE BURNER AND
CIRCULATOR OPERATION IS INDEPENDENT OF
THERMOSTAT

Fig. 6 Using Type 1311 Zone Valve

452

123

6

ADDITIONAL

ZONES

452

123

6

452

61

61

123

HOT
LINE

N

TRANSFORMER

2

3

6

DIAGRAM FOR SYSTEMS WHERE INTERNAL TRANSFORMER OF RELAY CONTROL SUPPLIES POWER
FOR ZONE VALVES

Alternate Wiring for using
750 Mv. Gas Valve

TYPE 668 OIL

BURNER CONTROL

IGNITION

TRANS.

ORANGE

WHITE

BURNER

MOTOR

N

LINE

HOT

Fig. 7 Diagram
for Oil-fired
System using
8A03A-2

WHITE

BLACK

HIGH LIMIT

F

F

T

T

BLACK

TYPE 956

FLAME DETECTOR

TYPE 8A03A-2

RELAY CONTACTS

(24V OR 750 MV)

TRANSFORMER

RELAY
CONTACTS
(LINE

VOLTAGE)

ORANGE

CIRCULATOR MOTOR

TYPE 8A03A-2

V1

V2

1

2

3

RELAY COIL

V1

V2

1

2

3

HIGH LIMIT

MUST BE N.E.C.
CLASS 1 WIRING

750 MV

GAS VALVE

TH

PG

TH PG

1

TO ZONE VALVES

2

}

3

4

56

123

6

Fig. 7a Diagram for
Gas-Fired System

750 MV
POWER
GENERATOR

TO ZONE

VALVES

{

MUST BE

N.E.C. CLASS 1

WIRING

Alternate Connections
For Type 8A02A Relay

4

56

452

452

6 123

6 123

123

TYPE 8A02A-1

1

2

3

TO 24 VOLT
GAS VALVE

4

56

1

MUST BE N.E.C.

CLASS 1 WIRING

3

HIGH LIMIT

MUST BE N.E.C.

CLASS 1 WIRING

HOT
LINE
N

YELLOW

CIRCULATOR

MOTOR

4

56

6

HIGH LIMIT

452

24 VAC

GAS VALVE

452

56

452

3

3