MYERS
®
MODELS CGL, CG, CGNC,
CWHV3, CWHV4 AND CNC
SINGLE AND THREE-PHASE SIMPLEX
AND DUPLEX CONTROL PANELS
WWW.FEMYERS.COM
SINGLE AND THREE-PHASE SIMPLEX AND DUPLEX CONTROL PANELS
MYERS
®
Quality Electrical Components Assure Reliable, Automatic Pump Operation
•IEC horsepower-rated motor contactors/starters rated at over 1 million cycles.
•Designed for use with standard mercury float switches. Uses three for simplex (off-on-alarm), four for duplex (off-on-override-alarm).
•Solid state alternating relay to equalize pump wear (duplex only).
•Override relay to start second pump if first one fails for any reason (duplex panels only).
Corrosion-Resistant for Long Life
•Outdoor NEMA 3R enclosures of galvanized steel with gray enamel finish and steel back panels (except CGL).
•Weathertight NEMA 4X fiberglass enclosures with aluminum back panels (CGL only).
Meets NEC and UL (508)
Standards for Safety
Panel
•UL-approved panel designs (label installed only on
request).
Material
A
B
C
D
E
F
•Individual pump circuit breakers.
•Control circuit transformer with primary fusing.
•Separate control and alarm circuit fuses.
Panel Dimensions and
Optional Features
• Elapsed Time Meter
• Alarm Bell or Horn
• Alarm Bell or Horn with Silence Switch
• Auxiliary Alarm Contacts
Panel
CGL
Simplex
Single-Phase Enclosure Dimensions
CGL
CG, CNC,CWHHV
CGL
Simplex 1 ph.
Simplex 1 ph.
Duplex 1 ph.
Fiberglass
Fiberglass
Fiberglass
15-1/2
17-1/2
19-5/8
13-3/8
15-7/16
17-1/2
7-3/4
7-11/16
10-5/8
14-5/8
16-3/4
18-7/8
10
12
12
5/16
5/16
5/16
CGL Duplex
Three-Phase Enclosure Dimensions
1 – 15 HP
1 – 15 HP
Simplex
Duplex
208/230V
Material Fiberglass
A
17-1/2
B
15-7/16
C
7-11/16
D
16-3/4
E
12
F
5/16
G
––
Fiberglass
19-5/8
17-1/2
10-5/8
18-7/8
12
5/16
––
22
21
Steel
20
8-3/8
460V
208/230V
460V
Steel
32
24
8-3/8
31
17
3/8 x 1/2
30
26
25
13
3/8 x 1/2
20
24
• Condensation Heater
CG, CNC, CWHV
Duplex 1 ph.
Fiberglass
19-5/8
17-1/2
10-5/8
18-7/8
12
5/16
20 – 60 HP
Simplex
20-25 HP
26
20
30-60 HP
Steel
32
24
8-3/8
25
31
13
17
3/8 x 1/2
24
30
20 – 60 HP
Duplex
20-25 HP 30-60 HP
Steel
38
36
24
36
8-3/8 12-3/8
31
37
17
27
3/8 x 1/2
30
36
F
• Convenience Outlet
• Intrinsically Safe Relays
• Lightning Arrestor
• Full Inner Door (CGL only)
• Cycle Counter
A D G
• 115 or 24 Volt Control Circuit Transformer
• Transfer Switch/Generator Receptacle
• Lag Pump Delay Circuitry (duplex only)
2
• Low Level Cut-Off and Alarm
Other options available.
Consult factory for applications.
• Low Voltage Circuitry
NOTE: Some options may increase enclosure size.
E
B
C
SINGLE AND THREE-PHASE SIMPLEX AND DUPLEX CONTROL PANELS
Standard Panel Features for CGL
A.
Corrosion-Resistant Enclosure
NEMA 4X fiberglass (outdoor).
B.
Aluminum Back Panel
C. IEC Motor Starter/Contactors
D. Pump Circuit Breaker(s)
E. Control Circuit Fuse
F.
G.
L
M
Single-Phase Simplex
D
H.
P
E
J
F
Q
Pump Run Light
Seal Leak Light
E
Red (only on units with detector).
J.
Terminal Blocks
K. Ground Lug
L. Flashing Alarm Light
Mounted on top of enclosure (red).
M.
Solid State Flasher
N. Override Relay
In event of first pump failure (duplex only).
O.
Alternator Relay
P.
Control Circuit Transformer
(Three-phase only).
Q.
Start Winding Relay(s)
R.
Starting Capacitor(s)
(Single-phase only).
(Single-phase only).
S.
Running Capacitor(s)
(Single-phase only).
T.Klixon
Q
R
R
®
Overload
J
K
T
G
H
I
G
H
I
L
A
M
Three-Phase Simplex
D
G
H
I
P
C
F
E
J
B
K
L
M
Three-Phase Duplex
D
C
A
G
H
I
D
C
N
O
J
(Single-phase only).
K
WWW.FEMYERS.COM
T
N
J
K
B
S
O
F
A
Q
Solid state (duplex only).
K
A
S
C
C
I
L
D D
Single-Phase Duplex
H
S
M
Amber.
G
C
1 Amp.
Momentary in-hand.
T
Alarm Circuit Fuse
Hand-Off-Auto Switch
B
Q
R
1 Amp.
I.
A
G
H
I
B
F
P
J
E
K
3
Standard Panel Features for CG, CGNC, CNC,
CWHV3 and CWHV4
A.
Corrosion-Resistant
Enclosure
B. Back Panel
C. IEC Motor Starter
D.
3-Pole bi-metal overload relay
(three-phase only),
1-Pole bi-metal overload relay
(single-phase only – not on CWHV3).
Pump Circuit Breaker(s)
Lock-out tab(s).
R.
Overload Reset Button
(Not on CWHV3 single-phase).
S.
Override Relay
Alternator Relay
U.
Incoming Power
Terminal Blocks
Full Inner Door
Front View
W.
Starting Capacitor(s)
Single-Phase Duplex
(Three-phase only).
I.
Hand-Off-Auto Switch
Running Capacitor(s)
Y.
IEC Motor Contactor(s)
(Single-phase only).
R
J
V
N
M
Full Inner Door
Front View
L.
Three-Phase Simplex
Red (except CWHV3).
Terminal Blocks
N. Ground Lugs
O. Flashing Alarm Light
A
Q
M
G
H
P
M.
I
J
K
L
E
B
Full Inner Door
Q. Solid State Flasher
D
C
F
R
M
N
M
O
Mounted on top of enclosure (red).
P.
M N
O
Alarm Test Switch
K. Pump Run Light(s)
M
Momentary in-hand position.
Seal Leak Light(s)
C
E F
S
M
J.
C
T
R
(Single-phase CWHV3 only).
Amber.
G
X
D D
X
V
W
L
A
B
W
I K K I
L
B
O
U
(Single-phase only).
X.
M
Q
Start Winding Relay(s)
(Single-phase only).
N
M
K
V.
Y
X
J
I
Control Circuit Fuse
F. Alarm Circuit Fuse
G. Control Circuit Breaker
H. Control Circuit
Transformer
D
E
V
W
Full Inner Door
Front View
E.
G
F
P
Solid state (duplex only).
(Single-phase only).
A
U
Single-Phase Simplex
In event of first pump failure
(duplex only).
T.
O
Q
Full Inner Door
Front View
H
P
E
L
J
R
L
I K K I
740 EAST 9TH STREET,
269 TRILLIUM DRIVE, KITCHENER,
ASHLAND, OHIO 44805
ONTARIO, CANADA N2G 4W5
WWW.FEMYERS.COMWWW.FEMYERS.COM
Because we are continuously improving our products and services, Pentair reserves the right to change specifications without prior notice.
K3215 09/18/14 © 2014 Pentair Ltd. All Rights Reser ved.
T
B
M
G
D
S
C
D
F
Three-Phase Duplex
R
A
Q
M
M
N
C
M
N
M