Medora GridBee SN15 User manual

O&M_SN15_10030_20200619

GridBee SN15

Owner's Manual

Table of Contents

About Ixom

Ixom combines knowledge and experience from across the water quality spectrum to help solve

real-world problems. Whether in Lakes, Stormwater Retention Ponds, Raw Drinking-Source Reservoirs, Water

Treatment Plants, Potable Storage Tanks, or Wastewater Treatment Processes, Ixom equipment continues to

be at the forefront as the #1 world leader for in-situ water body treatment.

Table of Contents

10014_20200528

GridBee SN15

Owner's Manual

Safety 1

Placement 4

Electrical 6

Startup and Operation 8

Troubleshooting 9

Technical Specifications 10

Exploded Parts Diagram 11

Dimension Drawing 12

Warranty 13

Customer Service 14

O&M_SN15_10030_20200619

Carefully read safety information when you see

any safety symbols.

Be sure you have read all installation, operation, maintenance and safety instructions before

you install, service or begin to operate this unit.

Accidents occur every year because of careless use of industrial equipment. You can avoid hazards

by following these safety instructions, and applying some ordinary common sense when operating or

servicing this unit.

Keep in mind that full operator attention and alertness are required when operating or servicing

this unit.

USE COMMON SENSE!! Most accidents can be avoided by using common sense and

concentration on the job being done.

Safety

1949_10036_20200528 O&M_SN15_10030_20200619 - 1

IMPORTANT!!!

Follow all federal and state laws in regards to

safety regulations of working at heights, conned

spaces, rescue, etc. as required by the U.S.

Department of Labor, Occupational Safety and

Health Administration. Use necessary PPE when

placing and servicing this unit.

Identify all possible hazards. Determine what

safeguards are needed and implement them.

Only you, the user, understand your product

and system characteristics fully. The ultimate

responsibility for safety is with you. Your

safety ultimately rests in your hands. Do

your part and you will enjoy safe, trouble free

operation for years to come. This instruction

manual is not intended to include a

comprehensive listing of all details for all

procedures required for placement, operation

and maintenance. If you have a question about

a procedure or are uncertain about any detail,

Do Not Proceed. Please contact Ixom

Customer Service at 866-437-8076 to speak

to a representative.

ELECTRICAL HAZARD

WARNING: THIS EQUIPMENT CONTAINS

HIGH VOLTAGE! ELECTRICAL SHOCK CAN

CAUSE SERIOUS OR FATAL INJURY. ONLY

QUALIFIED PERSONNEL SHOULD ATTEMPT

PLACEMENT, OPERATION AND MAINTENANCE

OF ELECTRICAL EQUIPMENT. REMOVE ALL

SOURCES OF ELECTRICAL POWER BEFORE

PERFORMING ANY SERVICE WORK TO THE

MACHINE. USE PROPER LOCKOUT TAGOUT

(LOTO) PROCEDURES TO ENSURE A SAFE

WORK ENVIRONMENT.

Rotating Hazard

CAUTION: KEEP BODY APPENANDAGES OR

LOOSE CLOTHING AWAY FROM EQUIPMENT

WHILE OPERATING. ENSURE EQUIPMENT IS

OFF BEFORE ATTEMPTING SERVICE.

Crush Hazard

WARNING: DO NOT REMOVE ANY FLOAT

ASSEMBLY BOLTS OR PINS WHILE EQUIPMENT

IS FLOATING IN WATER. EQUIPMENT MUST BE

SECURELY SUPPORTED BEFORE PERFORMING

SERVICE.

Laceration Hazard

CAUTION: EDGES MAY BE SHARP AND CAUSE

LACERATION IF PROPER CARE IS NOT USED.

Entanglement Hazard

WARNING: ENSURE THAT PERSONNEL ARE

CLEAR OF THE ELECTRIC CORD AND CHAIN TO

AVOID ENTANGLEMENT.

Thin Ice Hazard

WARNING: ICE SURROUNDING MACHINE MAY

NOT SUPPORT WEIGHT, KEEP CLEAR OF THIN

ICE.

Safety

1949_10036_20200528 O&M_SN15_10030_20200619 - 2

Permit-Required

Conned Spaces

A conned space has limited openings for

entry or exit, is large enough for entering and

working, and is not designed for continuous

worker occupancy. Conned spaces include

underground reservoirs, ground storage tanks,

elevated tanks, silos, manholes, and pipelines.

Conned Space Tips

• Do not enter permit-required conned spaces

without being trained and without having a

permit to enter.

• Review, understand and follow employer’s

procedures before entering permit-required

conned spaces and know how and when

to exit.

• Before entry, identify any physical hazards.

• Before and during entry, test and monitor for

oxygen content, ammability, toxicity or

explosive hazards as necessary.

• Use fall protection, rescue, air monitoring,

ventilation, lighting and communication

equipment according to entry procedures.

• Maintain contact at all times with a trained

attendant either visually, via phone, or by

two-way radio. This monitoring system

enables the attendant and entry supervisor

to order you to evacuate and to alert

appropriately trained rescue personnel to

rescue entrants when needed.

Refer to 29 CFR 1910.146 for complete

regulations set by OSHA. Refer to your state's

regulations if your state established and operates

their own safety and health programs approved

by OSHA.

Protect Yourself

It is important that you comply with all relative

OSHA and local regulations while installing

and performing any maintenance to the mixer

circulation equipment.

Key OSHA Compliance Standards that must

be followed (and not limited to) are:

• 1910.146 Permit-required conned spaces

• 1910.147 Lockout/Tagout

• 1926.500 Fall Protection

Fall Protection Tips

• Identify all potential tripping and fall hazards

before work starts.

• Look for fall hazards such as unprotected

oor openings/edges, shafts, open hatches,

stairwells, and roof openings/edges.

• Inspect fall protection and rescue equipment

for defects before use.

• Select, wear, and use fall protection and

rescue equipment appropriate for the task.

• Secure and stabilize all ladders before

climbing.

• Never stand on the top rung/step of a ladder.

• Use handrails when you go up or down stairs.

• Practice good housekeeping. Keep cords,

welding leads and air hoses out of walkways

or adjacent work areas.

Refer to 29 CFR 1926.500 for complete

regulations set by OSHA. Refer to your state's

regulations if your state established and operates

their own safety and health programs approved by

OSHA.

Lockout Tagout

When the On/Off switch is in the "ON" position,

the mixer may start up at any time if not already

operating. The mixer's On/Off switch can be

locked out by placing a pad lock thru the door latch

of the controller after the switch has been turned

to the "OFF" position. The On/Off switch is to be

used as the emergency stop.

Safety

1949_10036_20200528 O&M_SN15_10030_20200619 - 3

Control Panel Secondary Disconnect

& Tank Penetration

Source Power

SN Machine

Submersible cable ran from tank penetration to

SN machine.

Electrical conduit ran to top of tank, 4

Conductors sized according to NEC.

Spray system installed through hatch. Tethered

with dual tether system

Electrical Control Panel located at bottom of

tank.

Blower placed over top of machine.

Blower size depends on tank specics and

application. (Blower shown as roof mount,

certain models may require ground mount.)

Machine safety disconnect located near tank

entry

Placement

Placement Overview

SN Large Frame Series

10041_20200221 O&M_SN15_10030_20200619 - 4

FRONT VIEW SN DUAL TETHERING

TOP VIEW SN DUAL TETHERING

ROOF CONNECTION DETAIL

4” Diameter Chain Loop

316 Stainless Steel Chain

Approx. 6”

MOORING CONNECTION DETAIL

SN Machine

Dual Tethering

Visual Dual Tethering

SN Large Frame Series

2001_10142_20200221 O&M_SN15_10030_20200619 - 5

Three Phase Motor Specications (60 Hz) 3450 RPM:

TYPE

RATING FULL LOAD MAXIMUM LOAD LINE TO LINE

RESISTANCE

OHMS

EFFICIENCY LOCKED

ROTOR

AMPS

KVA

CODE

HP KW VOLTS HZ S.F. AMPS WATTS AMPS WATTS S.F. F.L.

4” STD

5 3.7

200 60 1.15 18.3 4800 20.5 5500 .68-.83 78 78 116 K

230 60 1.15 15.9 4800 17.8 5500 .91-1.1 78 78 102 K

460 60 1.15 8.0 4800 8.9 5500 3.6-4.4 78 78 53.7 K

6 ” STD.

10 7.5

230 60 1.15 28.4 9400 32.2 10800 .47-.57 79 79 172 H

380 60 1.15 17.6 9400 19.6 10800 1.2-1.5 79 79 104 H

460 60 1.15 14.2 9400 16.1 10800 1.9-2.4 79 79 86 H

15 11 380 60 1.15 25.8 13700 28.9 15800 .77-.95 81 81 161 H

460 60 1.15 20.8 13700 23.7 15800 1.1-1.4 81 81 133 H

TYPE

RATING CIRCUIT BREAKERS OR FUSE AMPS CIRCUIT BREAKERS OR FUSE AMPS

(MAXIMUM PER NEC) (TYPICAL SUBMERSIBLE)

HP KW VOLTS STANDARD

FUSE

DUAL ELEMENT

TIME DELAY FUSE

CIRCUIT

BREAKER

STANDARD

FUSE

DUAL ELEMENT

TIME DELAY FUSE

CIRCUIT

BREAKER

4” STD &

HI-TEMP

5 3.7

200 60 35 50 60 25 50

230 50 30 40 45 20 40

460 25 15 20 25 10 20

6 ” STD.

10 7.5

230 90 50 80 90 40 80

380 60 35 45 50 25 45

460 45 25 40 45 20 40

15 11 380 80 50 70 80 35 70

460 70 40 60 60 30 60

Three Phase Submersible Motor and Pump Protection Wiring

Electrical

Three Phase Wiring for THM SN Spray Units

1584_10037_20200619 O&M_SN15_10030_20200619 - 6

TANK PENETRATION IS SEALED WITH

HDPE WASHERS ACCOMPANIED BY

LEXEL® CO-POLYMER RUBBER-BASED SEALANT

CROSS-SECTIONAL VIEW

METAL TANK ROOF

INSIDE TANK

OUTSIDE TANK

ELECTRIC CABLE

1 CORD BOLT PER GRIDBEE:

NUT/GASKET OD: 2.250”

THREADED FIXTURE OD: 1.250”

BORE REQUIRED: 1.3125”

WASHER SEAL, HDPE

STRAIN RELIEF

WASHER

BRASS NUT

316SS UNIVERSAL

FIXTURE

(3/4” NPT FEMALE

THREADS FOR CONDUIT

CONNECTION POINT)

BRASS NUT

T316SS 3/4” MNPT

GLAND SEAL

316SS QUICK LINK

MESH STRAIN RELIEF

INSIDE

TANK

OUTSIDE

TANK

WASHER SEAL, HDPE

MAXIMUM BEARING

THICKNESS: 3.125 INCHES

NOT DESIGNED AS A

SUBMERSIBLE PENETRATION.

Electrical

Universal Fixture Assembly

Tank Penetration

1988_10121_20200221 O&M_SN15_10030_20200619 - 7

Placement Checks

Before starting the SN Spray Unit a few checks need to be done to conrm the placement is correct.

Placement Check Check

Is the SN Spray Unit properly tethered? (Assembly)

Is the cord ran through the cord seal and cord seal tightened at the interior of the cord xture? (Assembly)

Is the top splice between submersible cable conductors and exterior electric conductors insulated from each

other and individually sealed to protect from corrosion? (Assembly)

Is the control panel wired correctly? (Control Panel Diagram)

Is the SN Spray Unit submerged within the minimum water depth required? (Technical Specications)

Is the Motor rotating the correct direction? (See Rotation Check below)

Check Reading

Single Phase Three Phase

Continuity Check (Motor Windings + Splice + Wire)

Reference Wiring for Line to Line Ohms

L1:L2 L1:L2 L2:L3 L1:L3

Discontinuity Check (Power to Ground)

Should be Open to Ground

L1: GND L1: GND L2:GND L3:GND

Source Voltage Reading (while unit is running) L1:2 L1:2 L2:L3 L1:L3

Amperage Reading (while unit is running)

Reference Wiring Full Load / Max Load

L1 L1 L2 L3

Flow Check Auditory

Flow Check Visual

Final Checks

Now that the install checks have been completed. Now to conrm the continuity and discontinuity and then

start the SN Spray Unit.

Rotation Check - (Three Phase Only)

Before nalizing the placement, the motor rotation needs to

be checked. With someone observing the SN Spray Unit,

briey turn the unit on for several seconds and observe the

ow pattern, look for how far out the spray reaches. Turn unit

off, isolate power, and have a qualied person switch 2 of the

3 motor leads of outgoing power. Repeat operation again for

several seconds and observe the SN Spray Unit ow pattern

again. Determine which wiring conguration produced the

ow pattern that reaches out the furthest and nalize with that

wiring of the outgoing power leads. See Figure 1 for proper

ow direction. Figure 1: Flow Check

REVERSEFWD FWD

Startup and Operation

SN Startup and Operation

Wiring

10103_20200221 O&M_SN15_10030_20200619 - 8

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