Bell & Gossett DN0154D User Manual

INSTRUCTION MANUAL

DN0154

REVISION D

Hoffman Specialty

®

Vented Condensate Units
Series HC™ and HS

™

SERIES HS™with

Optional Panel & Equipment

SERIES HC

Optional Panel & Equipment

™

with

INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE.

SAFETY

INSTRUCTIONS

This safety alert symbol will be used in this manual and on

the unit safety instruction decals to draw attention to safety
related instructions. When used, the safety alert symbol means
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT
IN A SAFETY HAZARD.

WARNING

EXPLOSIBLE

ISOLATE TANK

DURING LEAK TEST

(2) All Units

DN0485 (Small)

DN0486 (Large)

EXPLOSIBLE

(2) All Units

DN0483 (Small) - DN0484 (Large)

WARNING

DO NOT PRESSURIZE TANK.
ISOLATE TANK DURING LEAK TEST.
DO NOT RESTRICT VENT.
DO NOT PLUG OVERFLOW.
OPEN INLET VALVES SLOWLY.
DO NOT USE AS A FLASH TANK.

FAILURE TO FOLLOW
INSTRUCTIONS COULD RESULT
IN SERIOUS INJURY OR DEATH.

If the decals as noted below are missing or are illegible contact
your local B&G representative for a replacement.

1. Electrical connections to be made by qualified Electrician in
accordance with all National, State and Local codes.

2. Motor must have properly sized starter with properly sized
heaters to provide overload and undervoltage protection.

3. If pump, motor or piping are operating at extremely high or
low temperatures, guarding or insulation is required.

4. Operating personnel should be trained in the operation of
condensate return units.

TM

SERIES

MODEL

SERIAL

GPM PSI PUMP

CFM IN HG. PUMP

DWGS

POWER V. PH. HZ 60

CONTROL V. PH. 1 HZ 60

TOTAL LARGEST MOTOR
F.L. AMP F.L. AMP

DN0016

TM

Morton Grove, Illinois 60053

DN0116

Units with Panel

SERIES

MODEL

SERIAL

GPM PSI PUMP

POWER V. PH. HZ60

CONTROL V. PH. 1 HZ60

TOTAL LARGEST MOTOR
F.L. AMP F.L. AMP

TM

TM

Morton Grove, Illinois 60053

DN0019

Units Less/Panel

CAUTION

DO NOT RUN PUMP DRY,
SEAL DAMAGE MAY OCCUR.

INSPECT PUMP SEAL
REGULARLY FOR LEAKS,
REPLACE AS REQUIRED.

FOR LUBRICATION
REQUIREMENTS, CONSULT
SERVICE INSTRUCTIONS.

FAILURE TO FOLLOW
INSTRUCTIONS COULD
RESULT IN INJURY OR
PROPERTY DAMAGE.

P70644

All Units

P70644

3

PUTTING THE UNIT INTO SERVICE

1. Assure that the unit is piped in accordance with instructions

on page 2.

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. Check power leads in accordance with wiring diagram
enclosed in control cabinet (when furnished).

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.

GAGE GLASS MAINTENANCE (Vented Systems)

Clean gage glass as required using commercial glass cleaner.

Dilute muratic acid may be used if required (observe handling
precautions). Never clean gage glass with wire brushes,
scrapers or harsh abrasives. Check exterior only.

Do not reuse gage glass or packing or seals. Immediately
replace glass which is broken, cracked, chipped, scratched or
otherwise damaged. Inspect periodically with a bright concen­trated light. Anything which glistens and catches the fingernail
or any star-shaped or crescent-shaped mark which glistens is
cause for replacement. Any gage glass which appears cloudy
or roughened and will not respond to cleaning procedures
should be replaced.

When replacing gage glass, use new packings specified for this
use. Install glass with sufficient end clearance for expansion
(keep glass to metal clearance at each end) and tighten nuts
just enough to avoid leakage (do not over tighten).

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.