Xylem Hoffman Speciality SCC4, Bell&Gosset Hoffman Speciality WC Series, Bell&Gosset Hoffman Speciality WVS Series, Bell&Gosset Hoffman Speciality SCC Series, Hoffman Speciality WC8-20B Instruction Manual
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INSTRUCTION MANUAL
DN0156
REVISION H
Hoffman Specialty
®
Vented Condensate Units
Watchman Series WC,™ WCS
and Series SCC
WCS Simplex
Watchman® WCS8-20B
™
WC Duplex
Watchman® WCD-12-20BMA
™
SCC4
3
MOTOR
1
MOTOR
115/1 60*
LINE
L1
L2
FLOAT SWITCH
POWER SUPPLY,
PRIMARY PROTECTION
BY OTHERS
1DW129A 1DW130A
LINE
L2
L1
POWER SUPPLY,
PRIMARY PROTECTION
BY OTHERS
FLOAT SWITCH
REPRESENTATIVE WIRING DIAGRAMS
WATCHMAN®SIMPLEX UNITS, SINGLE PHASE
WATCHMAN®AND SCC1 DUPLEX UNITS, SINGLE PHASE
FIELD WIRING SHOULD BE IN ACCORDANCE WITH
NATIONAL ELECTRIC CODE.
DASHED LINE WIRING & COMPONENTS BY OTHERS
*230/1/60 VOLTAGE PERMISSIBLE IF MOTOR IS
RECONNECTED PER 'HIGH VOLTAGE' DIAGRAM
ON MOTOR AND APPLICABLE PRIMARY PROTECTION
IS SUPPLIED.
MOTOR
2
MOTOR
1
MOTOR
2
MOTOR
1
115/1/60*
LINE
115/1/60*
LINE
L1
L2
L1
L2
1DW129B 1DW130B
LINELINE
L2
L1
L2
L1
POWER SUPPLY,
PRIMARY PROTECTION
BY OTHERS
POWER SUPPLY,
PRIMARY PROTECTION
BY OTHERS
MECHANICAL
ALTERNATOR
MECHANICAL
ALTERNATOR
FIELD WIRING SHOULD BE IN ACCORDANCE WITH
NATIONAL ELECTRIC CODE.
DASHED LINE WIRING & COMPONENTS BY OTHERS
MODEL SCC2, SCC3 & SCC4 (DUPLEX, 3 PHASE UNITS WITH CONTROL PANEL)
CONNECTION DIAGRAM ELEMENTARY DIAGRAM
LINE
1 H3 H 4
LINE
TRANSFORMER FUSE TYPE
FNQ-R OR EQUIV.
600V / AMP
1
2
MAIN DISCONNECT SWITCH
AND SHORT CIRCUIT
PROTECTION BY OTHERS
FIELD WIRING SHOULD BE IN
ACCORDANCE WITH THE N.E.C.
TRANSF. PRIMARY JUMPER
PER TRANSF. LABEL
1 H3 H 4
L2
L1
L2
L1
GRN
GRN
COIL COIL
COIL
COIL COIL COIL
X1X1X2
X2
H1
H4
H1
H4
11
54 109
5
7
13
3
S2
S1
T1 T2 T3
T1 T2 T3
3
8
4 7 9 12
MOTOR
1
MOTOR
2
MECHANICAL
ALTERNATOR
(AUTOMATIC)
7
4
9
12
ALT.1
ALT.2
ENCLOSURE
FUSE
TRANSF #1
(115 V.A.C. SEC. 1)
MECH.
ALT.
(ALT. 1)
TRANSF. #2
(115 V.A.C. SEC. 1)
FUSE
MECH.
ALT.
(ALT. 2)
MOTOR
2
MOTOR
1
L1
L2
L3
T1
T2
T3
S1
S1
S1
GRN
GRN
X1 X2
X1 X2
L1
L2
L3
T1
T2
T3
S2
S2
S2
S1
S2
10
9
12
13
10
O.L.
O.L.
4
785
5
2DW128
SCC2, SCC3 AND SCC4 UNITS ARE
FACTORY WIRED FOR 230 VOLT,
3 PHASE 60 HERTZ. KITS ARE
AVAILABLE TO CONVERT TO 280V
OR 460 VOLTS.
4
PUTTING THE UNIT INTO SERVICE
1. Assure that the unit is piped in accordance with instructions
in this manual.
2. Isolate tank before performing any system leak test. Do not
pressurize the tank as part of the leak test. Failure to do this
can result in serious injury or death.
3. Check floats and alternators for free operation.
4. Wire unit per National Electrical Code. See representative
wiring diagrams.
5. Install drain plugs.
6. Fill receiver half full of water to prime pump(s) and prevent
possible damage to pump seals. Avoid freezing conditions
after unit receiver has been filled.
7. Check for proper rotation of all three phase motors.
Rotation must be clockwise looking down on the motor as
indicated by directional arrow on pump casting. If pump
runs backwards, interchange two wires (3 phase only).
8. Throttle plug cock in discharge line until pressure at pump
(while pump is discharging) approaches pump rated pressure. Tighten plug nut to secure adjustment.
9. Remove start-up label (below) from panel (if applicable)
after complying with instructions.
10. If possible, observe operation thru several cycles.
WARNING: EXPLOSIBLE
Do not pressurize receiver. Isolate receiver during leak
test. Do not plug overflow. Do not restrict vent opening to
atmosphere. Open valves slowly. Failure to follow these
instructions could result in serious injury or death.
WARNING: HIGH VOLTAGE
Disconnect and lock out power before connecting or
servicing unit. Failure to follow these instructions could
result in serious injury or death.
CAUTION: DO NOT RUN DRY.
SEAL DAMAGE MAY OCCUR.
Inspect pump seal regularly for leaks. Replace as required.
Failure to follow these instructions could result in injury or
property damage.
CAUTION: DO NOT REVERSE
Reverse operation can cause extensive damage to
pumps. Jog the motor to test for direction of rotation. Failure
to follow these instructions could result in injury or property
damage.
OPERATION AND MAINTENANCE
Operators must be familiar with all sections of this manual to
understand the operation of the unit.
Hot water, steam and electricity can be hazardous.
Check motor nameplate for any lubrication requirements.
Pumps require no lubrication.
NOTICE / AUTO RESTART
Single phase motors will restart automatically after thermal
overload protector trips.
Overload thermal relays in starters must be reset manually.
A properly installed unit should function unattended for long
periods of time. Periodic checks to assure proper operations
are highly recommended. Refer to trouble shooting section
when necessary.
A variety of control options are available and are furnished in
accordance with user specifications. Refer to wiring diagrams
(when furnished) to determine control switch settings.
The inlet strainer (when furnished) is intended to protect the
pump and system. Periodic cleaning should be included in the
maintenance schedule. Check frequently in new systems.
WARNING: EXPLOSIBLE
Do not pressurize receiver. Isolate receiver during leak
test. Do not plug overflow. Do not restrict vent opening to
atmosphere. Open valves slowly. Failure to follow these
instructions could result in serious injury or death.
WARNING: HIGH VOLTAGE
Disconnect and lock out power before connecting or
servicing unit. Failure to follow these instructions could
result in serious injury or death.
CAUTION: SUBSEQUENT DAMAGE
A unit showing symptoms of possible problems
(overflow, noise, leaks, vibrations, continual operation, etc.)
must be corrected immediately. Failure to follow these
instructions may result in full liability for subsequent injury or
property damage.
SAFETY INSTRUCTIONS
SEE COVER OF THIS MANUAL
ELECTRICIAN/INSTALLER/OPERATOR
REMOVE AND DESTROY THIS TAG AFTER —
1. ASSURING THAT ALL PUMPS ROTATE CLOCKWISE PER ARROWS CAST ON VOLUTES. (JOG
PUMP MOMENTARILY TO TEST – INTERCHANGE ANY TWO MOTOR POWER WIRES TO
REVERSE 3PH MOTORS.)
2. ASSURING THAT SHIPPING LOCKS HAVE BEEN REMOVED FROM ALL FLOAT SWITCHES.
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