3031RB/RC HEAT RECLAIM SOLENOIDS
APPLICATION
3-Way heat reclaim application valve
With the solenoid coil de-energized, the valve is in the
normal operating mode and the refrigerant gas is
diverted to the normal condenser
During normal operation, the piston assembly is
shifted upward, shutting the heat reclaim coil port and
opening the normal condenser port
For heat reclaim operation, the solenoid coil is energized
and discharge gas is diverted to the auxiliary condenser
NOTE: Coil sold separately - see
page 87. See Nomenclature
for ordering information.
Heat
Reclaim
Compressor
Discharge
FEATURES
OPTIONS
Superior control in diverting discharge gas to an
auxiliary condenser for heat reclaim
Extended copper ends for easy brazing and installation
High capacity, less pressure drop with higher
system efficiency
Long-life Molded Coils–water, shock and vibration
protection in coil winding
Rugged internal construction with heavy-duty forged
brass bodies
Pilot is field replaceable
Condenser
Internal reclaim bleed available
Angle style standard/straight-thru option
SPECIFICATIONS
Maximum working pressure:
3031RC12:
500 psig
3031RB20:
450 psig
MOPD:
300 psig
UL file number:
MP604
CSA file number:
LR3204
NOMENCLATURE
Example: 3031RB 20S9B S/T
3031R
Valve
Series
B
Design
Series
20
Port Size
(in 1/16")
S
Connection Type
ODF
9
Connection Size
(in 1/8")
B
Add if bleed
is required
(optional)
S/T
Straight-Thru
(optional)
VLC
Coil*
*NOTE: Valves are shipped without the solenoid coils (VLC = Valve Less Coil). See page 3 for available coils.
ORDERING INFORMATION AND NOMINAL DISCHARGE CAPACITY TABLE FOR 3031RB/RC VALVES - TONS
PCN*
055939
055945
055941
055943
055940
055942
055944
055946
044343
049008
044830
044344
049011
044831
049009
053985
PRODUCT
* Product Code Number
1
DESCRIPTION
3031RC 12 S 7 VLC
3031RC 12 S 7 B ST VLC
3031RC 12 S 7 B VLC
3031RC 12 S 7 ST VLC
3031RC 12 S 9 VLC
3031RC 12 S 9 B VLC
3031RC 12 S 9 ST VLC
3031RC 12 S 9 B ST VLC
3031RB 20 S 9 VLC
3031RB 20 S 9 B ST VLC
3031RB 20 S 9 B VLC
3031RB 20 S 11 VLC
3031RB 20 S 11 B ST VLC
3031RB 20 S 11 B VLC
3031RB 20 S 11 ST VLC
3031RB 20 S 13 ST VL
CONNECTION SIZE
R-12
R-134a
R-22
R-407C
R-404A/R-507
R-502
6.9
8.3
12.2
12.2
10.6
8.3
17.9
21.6
31.8
31.8
27.5
21.6
7/8 ODF
1 1/8 ODF
1 3/8
1 5/8
Standard Product Offering
EMERSON C LIMATE T ECHNOLOGIES
3031RB/RC DIMENSIONAL DATA
3031RC
3031RB
VALVE
A
3031RB20S9
3031RB20S11
3031RC12S7
3031RC12S9
B
9-7/8 (9.88)
9-7/8 (9.88)
9-1/4 (9.25)
9-1/4 (9.25)
C
D
E
5-9/32 (5.28) 3-31/32 (3.97) 4-9/16 (4.56) 4-11/32 (4.34)
5-9/32 (5.28) 3-31/32 (3.97) 4-9/16 (4.56) 4-11/32 (4.34)
5 (5.00)
4 (4.00)
4-1/4 (4.25)
3-5/8 (3.63)
5 (5.00)
4 (4.00)
4-1/4 (4.25)
3-5/8 (3.63)
F
G
H
1 1/8 (1.13)
1 3/8 (1.37)
7/8 (.88)
1 1/8 (1.13)
29/32 (.91)
31/32(.97)
7/8 (.88)
29/32 (.91)
7-19/32 (7.59)
7-19/32 (7.59)
7 (7.00)
7 (7.00)
DIMENSIONS SHOWN ARE IN INCHES: FRACTIONS (DECIMAL)
CONSULT THE FACTORY FOR STRAIGHT-THRU CONFIGURATION DIMENSIONS.
3031 VALVE REPAIR KITS
VALVE
3031RB20
3031RC12
3031RB12
Gasket Kit for all 3031 Valves
KIT #
KS30086
KS30291
KS30085
is KG10029
* Product Code Number
3031RB12 replaced by 3031RC12
PCN*
045966
055999
045967
054407
Standard Product Offering
3031RB/RC EXPLODED VIEW
& PARTS KIT DATA
CONDENSERS IN PARALLEL
CONDENSERS IN SERIES
(k)
(k)
(k)
(Straight-thru shown/Angle available)
Heat Reclaim Valves provide superior control whether your
condensers are parallel or in series.
Flow thru auxiliary condenser is accomplished when the
3031RB/RC is energized.
EMERSON CLIMATE T ECHNOLOGIES
“K
K ” indicates part is supplied in valve repair kit.
COIL ASSEMBL
ASSEMBLYY
For voltages and frequencies available
see the tables beginning on page 85.
2
COILS FOR SOLENOID VALVES
FEATURES
? Space-saving designs
? Coil windings are insulated to provide
water, shock and vibration protection
VOLTAGE OPTIONS
MM COIL
?24V 50/60 Hz
?120V 50/60 Hz (standard)
?208-220/208-240V 50/60 Hz
?480V 50/60 Hz
?120-240V 50/60 Hz
?12V D.C. (MM Series recommended)
?24V D.C. (MM Series recommended)
ASC2 COIL
Open Frame
Junction Box
1/2’
’Conduit
6’
’Lead
18’
’Lead
Standard
Hi-Temp
Standard
Hi-Temp
AMG/MMG/DMG
AHG
AMC
AHC
18’
’Lead
¼ ’
’
Spades
AMF/MMF/RMF
AMS/DMS/RMS
AM COIL FOR: 702RA
Nominal Voltage
Applied Voltage
and Frequency
24-50/60
24-50/60
120-50/60
120-50/60
208-220/50 208-240/60
208-220/50 208-240/60
208-220/50 208-240/60
208-220/50 208-240/60
480-50/60
480-50/60
Amperes
and Frequency
Inrush
Holding
24/50
1.70
1.00
24/60
1.41
.64
120/50
.38
.24
120/60
.32
.16
208/50
.17
.10
208/60
.15
.06
220/50
.20
.14
240/60
.217
.09
480/50
.10
.07
480/60
.09
.04
See the MM (MAGMAX) Series Coil for DC Applications.
VA
Watts
Coil
Holding
24
15
29
19
21
13
33
22
33
22
Max.
Insulation
17/12
Class
F
Molded
AM/EM COIL FOR: 204C, 214C, 211C, 222C, 210C
Nominal Voltage
Applied Voltage
and Frequency
and Frequency
24/60
120/60
240/60
480/60
24/60
120/60
240/60
480/60
121
Inrush
Holding
201
Inrush
Holding
211
Inrush
231
Holding
1.23
.61
1.17
.61
.92
.61
.23
.14
.22
.14
.17
.14
.13
.08
.12
.08
.10
.08
.06
.04
.05
.04
.05
.04
See the MM (MAGMAX) Series Coil for DC Applications.
241
Inrush
Holding
Inrush
Holding
1.00
.19
.11
.05
.74
.16
.08
.04
.92
.17
.10
.05
.61
.14
.08
.04
MAGMAX COIL (TYPE MM): FOR USE ON DC APPLICATIONS ONLY
Voltage
12vDC
24vDC
Amperes
Inrush
Holding
4.0
.4
2.5
.4
EMERSON CLIMATE TECHNOLOGIES
Holding
Watts
4
4
3