Good Way GDS-C40 Manual

GDS-C40
GDS-C92
Descaling Systems
Operating and
Maintenance
Instructions
Read before operating.

GDS-C40/GDS-C92 0121
2
CONTENTS:
IMPORTANT SAFETY INSTRUCTIONS.................................................................................................3
ELECTRICAL SAFETY......................................................................................................................... 4-5
SET UP .....................................................................................................................................................5
PROCESS SAFETY MANAGEMENT [PSM] PROCEDURES:........................................................... 6-7
PLEASE OBSERVE THESE PRECAUTIONS:..................................................................................... 7-8
CLEANING PREPARATION ...................................................................................................................8
TO RECAP SPECIFICALLY ................................................................................................................. 8-9
LOCATION AND CONNECTION OF THE GOODWAY GDS-C SERIES...........................................9
MIXING INSTRUCTIONS .....................................................................................................................10
CORROSION RATES............................................................................................................................10
STORAGE..............................................................................................................................................10
TROUBLE SHOOTING.........................................................................................................................10
TECHNICAL DATA ...............................................................................................................................11
WIRING DIAGRAM GDS-C40 & GDS-C92........................................................................................11
GDS-C40 & C92 PARTS DIAGRAM ....................................................................................................12
GDS-C40 & C92 PARTS LIST.........................................................................................................13-14
GDS-C40 & C92 INLET & OUTLET HOSE PARTS DIAGRAM ..........................................................15
Thank you for purchasing this Goodway GDS-C Series Descaling System. As with
all Goodway products, you can be assured that the nest quality components and
workmanship have gone into this machine.
Please take a few minutes to read the following Operating and Maintenance
Instructions. Please pay particular attention to the safety instructions and exercise
caution when using this machine.
GOODWAY®TECHNOLOGIES CORPORATION
HVAC & FACILITY MAINTENANCE SOLUTIONS
For Sales Call: 1-800-333-7467 or 203-359-4708
For Service Call: 1-800-370-2855

GDS-C40/GDS-C92 0121 3
IMPORTANT SAFETY INSTRUCTIONS
1. Read all instructions before using this descaling system.
2. Make sure all lines are secure before starting.
3. Always check the unit, hoses, ttings, etc for weak spots, leaks, slices or cuts before
each use.
4. Do not use with gasoline or any other ammable liquid. Do not operate in
explosive atmospheres, such as in the presence of ammable liquids, gases
or dust.
5. Make sure that there is adequate ventilation in the work area.
6. Connect a garden hose to over ow port and direct to safe area or container
for neutralization.
7. Stay alert, watch what you are doing and use common sense when operating
this unit.
8. Keep bystanders, children, and visitors away while operating this unit.
9. Turn unit off and relieve pressure in the hoses when done.
10. Do not use while tired or under the inuence of drugs, alcohol, or medication.
11. Do not overreach or stand on unstable support. Keep proper footing and balance
at all times.
12. Do not use the unit if it does not operate properly or has been damaged. Do
not try to service the unit yourself - call Goodway for assistance. Service must be
performed only by qualied repair personnel. Service performed by unqualied
personnel could result in a risk of injury and voids the warranty.
13. Empty container completely before lifting of any kind, this will prevent spillage and
lighten unit.
WARNING
General
Buildup of hard water deposits such as scale (calcium and mineral deposits), rust, etc.
can seriously reduce the efciency of heat exchange equipment and can lead to higher
operating costs and expensive repairs, or even the replacement of entire units. The
GOODWAY DESCALER PUMP GDS-C Series was designed to cure circulation and boiler
noise problems caused by the accumulation of sludge, corrosion deposits and scale. This
manual contains detailed guidelines for the safe use of the pump.

GDS-C40/GDS-C92 0121
4
14. Always turn machine off after use.
15. Do not spray the unit with water or chemicals.
16. Do not use water with a temperature of more than 120°F (49°C).
17. Use only approved accessories and replacement parts.
18. Follow maintenance procedures outlined in this manual.
19. Never let the main pump run dry. This may damage the seals of the pump.
20. CAUTION: Wear rubber gloves, rubber boots, goggles or face-shield, etc.
Descaling chemicals may cause injuries to the eyes and skin. Protect yourself
from direct skin contact with the chemicals and debris found in the
descaling environment.
21. WARNING: Don’t assume chemical compatibility – if a chemical other than
Goodway’s ScaleBreak®is used you must ensure that the chemical will not
damage the internal components (pump, plumbing, valves, etc) of the unit. A
full chemical compatibility check must be done rst. Call Goodway to check
compatibility before using any chemical other than Goodway’s ScaleBreak®in
the Goodway Descaler.
22. WARNING: Do not mix chemicals!! Mixing incompatible chemicals may
cause damage to the unit or cause dangerous, life-threatening chemical
reactions. ALWAYS ush the pump with water after use or before
changing chemicals.
CAUTION - IF YOU ARE UNSURE ABOUT CHEMICAL COMPATABILITY CALL
GOODWAY AT ONCE!! USING A NON-COMPATABLE CHEMICAL CAN BE
DANGEROUS AND MAY DAMAGE THE UNIT AND VOID THE WARRANTY!
Electrical Safety
• Grounded tools must be plugged into a properly installed and grounded
outlet in accordance with all codes and ordinances. Never remove the
grounding prong or modify the plug in any way. Do not use any adapter plugs.
Check with a qualied electrician if you are in doubt as to whether the outlet is
properly grounded. If the tool should electrically malfunction or break down,
grounding provides a low resistance path to carry electricity away from
the user.
• Avoid body contact with grounded surfaces such as pipes, radiators, ranges
and refrigerators. There is an increased risk of electric shock if your body
is grounded.
• Do not abuse the cord. Never use the cord to carry the tool or pull the plug
from an outlet. Keep cord away from heat, oil, sharp edges or moving parts.
Replace damaged cords immediately. Damaged cords increase the risk of
electric shock.

GDS-C40/GDS-C92 0121 5
• When operating a power tool outside, use an outdoor extension cords marked
“W-A” or “W”. These cords are rated for outdoor use and reduce the risk of
electric shock.
Ground Fault Circuit Interrupter Protection: The unit is provided with a ground fault
circuit interrupter (GFCI) built into the power supply cord. This device provides
additional protection from the risk of electric shock. Should replacement of the
plug or cord become necessary, use only identical replacement parts that include
GFCI protection.
Extension Cords: Extension cords are not protected by the GFCI. Use only 3-wire
extension cords that have 3-prong grounding-type plugs and 3-pole cord connectors
that accept the plug from the product. Do not use damaged extension cords. Examine
extension cord before using and replace if damaged. Always disconnect the extension
cord from the receptacle before disconnecting the product from the extension cord.
WARNING: To reduce the risk of electrocution keep all connections dry and off the
ground. Do not touch plug with wet hand.
WARNING: The cords, wires, and/or cables supplied with this product may contain
chemicals, including lead or lead compounds, known to the State of California to cause
cancer and birth defects or other reproductive harm. Always wash hands after using.
SAVE THESE INSTRUCTIONS
SET UP
1. Fill the tank with sufcient descaling solution to ensure that the pump rotor
housing is submerged during use. The minimum liquid level is shown on the
"CAUTION" label afxed to the tank.
2. Screw the outer ends of the ow and return hoses securely to the plant or
equipment to be descaled. The pump connection to the lower point of the
equipment should always be through a valve, as a prudent precaution.
IMPORTANT: If the GDS unit is lower than the equipment being cleaned: In the event
of power failure to the unit, the head (height) of water in the equipment would cause
the liquid level in the descaling pump tank to rise and overow and possibly causing
property damage, unless prevented by closing the valve as mentioned above.

GDS-C40/GDS-C92 0121
6
PROCESS SAFETY MANAGEMENT [PSM] PROCEDURES:
CHEMICAL DESCALING / SCALEBREAK® PRODUCTS
All procedures should be established jointly with all applicable plant personnel
involved in the operation, the following would be included:
• Pre-operational safety review with plant operations.
• A walk through of all systems to check mechanical integrity of systems being
operated on, valves, associated system components etc.
• Establishing complete Isolation of system to be cleaned from any other system.
• Hydrostatic testing of condenser system – establishing that the system is
completely isolated from any other system and potential discovery of any pre-
existing leaks – this trial hydrostatic test with water is excellent at discovering
leaks without having product in any unit.
• Determination of pump requirements for ScaleBreak®injection into units /
logistics on hose connections on inlet and return points.
• ScaleBreak®general injection process understanding and logistics.
• CO2 gas escape / venting requirements in system when calcium carbonate is
being dissolved during descaling.
• Leak detection and emergency response If ScaleBreak®is injected and a leak is
discovered during ScaleBreak®operations.
• Understanding of ScaleBreak®movement through entire condenser circuit via
supplied drawings during descaling operations.
• Monitoring of cleaning process/steps.
• Determination of completion of cleaning (hours/contact time, pH
measurements).
• ScaleBreak®Neutralization and removal procedures. This may involve use of
sodium carbonate, sodium hydroxide, or other alkali material.
• Rinsing and ushing of condenser units after cleaning.
• Passivation procedures of condenser metallurgy by the plant after cleaning
with corrosion inhibitors.
• Inspection of cleaned system by plant personnel - boroscopes.
OPERATING INSTRUCTIONS
1. Switch on the pump, and check to ensure that the liquid level does not fall
below the level of the rotor housing (see pg. 8, cleaning preparation), as some
of the contents of the tank enter the equipment being descaled, particularly
when the overall capacity of the system being descaled is greater than the
tank capacity of the pump. If necessary, add more descaling solution, or water.
Check all connections for leaks.

GDS-C40/GDS-C92 0121 7
2. During use, the tank cap should rest on top of the screwed stem, but should
not be screwed on by more than a quarter turn, to allow for the passage and
elimination of the gas evolved during descaling. Check that the foam level
does not exceed the maximum lling level. If necessary, carefully add Goodway
defoamer P/N: Foam-Clear-01 to reduce foam – However, this will not stop or
slow gas generation.
3. The built-in ow reverser makes it possible to attack scale from both directions.
During descaling periodically move the ow reverser handle from one stop to
the other. This reduces descaling time considerably, and is more effective in
ushing out any solid matter, which will accumulate on the circumference of
the base of the tank. By attacking scale from both sides, it is possible to clean
piping which is almost totally obstructed.
4. Scale removal can be considered complete when bubbles no longer form in
the return pipe, and the solution is still acidic.
5. Check the pH of the circulating solution with a pH Sensor or Litmus paper GTC
P/N PH-TEST-PAPER.
6. Caps should be kept securely on all chemical containers while not in use. As a
matter of prudence, and to avoid splashes, operators should avoid standing
directly over the open neck of either chemical containers or the lling neck of
the descaling pump while pouring or adding chemicals.
7. If the pump is not to be used for a period of time, wash out the pump after
use by circulating clean water through it, to prevent any residues of descaling
process from drying and "gumming up" the rotor.
IMPORTANT: When working with acidic descaling chemicals always wear suitable
protective clothing and goggles, and check and observe instructions supplied with
descaling chemicals and refer to Material Safety Data Sheets.
PLEASE OBSERVE THESE PRECAUTIONS:
• The temperature of the descaling / ushing solution must not exceed 120°F
(48,8°C). Monitor temperature closely when descaling plant / equipment
which may already have a high temperature, such as the domestic water coil in
storage water heaters, or large plastic injection molding tools.
• Do not dissolve solid or crystalline descaling chemicals directly in tank, as
this may choke the pump inlet and cause abrasion damage. Dissolve such
chemicals in a bucket rst.
• Always keep pump upright, particularly in transit, to avoid any liquid
penetrating lower electric motor bearing, or lower electric motor bearing may
wear prematurely.
Legal disclaimer - It is stressed that these are guidance notes only, and the above information is based on
the state of plant equipment in general. It is given in good faith, but due to the diverse and varied nature of
such equipment, and its application, the user must satisfy themselves that the above procedure is viable in
the prevailing situation.

GDS-C40/GDS-C92 0121
8
CLEANING PREPARATION
Again, the unit to be cleaned must be absolutely isolated from other parts of any
other system. Contact your Local Goodway local Rep. for specic details on dosage
& recirculation times for your application. For systems that cannot be isolated by the
closing of valves, isolation may be accomplished via other suggested methods – all
which require plant clearance/ authorization: i.e. using rubber blankets, bulkheads
with seals inatable nylon or rubber bags, rubber sponge-covered plugs, or
blind anges and steel plates with rubber seals. Long lines may require auxiliary
connections for chemical cleaning. The following information should be considered
before a chemical descaling cleaning process:
It is recommended that ScaleBreak®products be recirculated rather than applied
via a soak method (some plants may prefer this). In either case, temporary piping
or hose lines will be required to connect the cleaning solution mixing tanks or
possible trucks to the unit, with return lines to tanks or drains. Proper precautions
and adequate provisions must be made to protect equipment, isolate control
lines, replace liquid level sight glasses with expendable materials if any, and
provide suitable points for checking temperatures if heat is to be applied. It may
be necessary to remove selected system components if the cleaning process
might damage them. The entire cleaning procedure/process must be developed
in detail and agreed on with plant personnel before starting ScaleBreak®descaling
operations. Factors to be considered include: The methods for controlling
temperatures; the means of mixing, heating (if needed), and circulating any
ScaleBreak® solution; proper venting of dangerous gases from equipment to a
safe area; and means for draining, lling, and ushing under inert atmospheres.
Sampling points, test procedures, and control limits should also be established.
TO RECAP SPECIFICALLY:
• Process safety information review with plant personnel and others to be
involved with all parts of descaling operations.
• Process hazard analysis of descaling procedures and contingencies with plant
management for emergency procedures.
• Complete lay-out of developed general operating procedures during
descaling.
• Training of any personnel involved in the descaling operation itself (right
to know [RTK] /msds and understanding of the ScaleBreak®product being
applied and neutralizing materials).
• Personal protective equipment overview needed for the operation.
• Mechanical integrity checks of all systems that will be descaled.
• Pre-startup safety review with plant & operations/management for the job.
• Emergency planning and response for descaling operations.

GDS-C40/GDS-C92 0121 9
LOCATION AND CONNECTION OF THE GOODWAY
GDS-C SERIES
MIXING INSTRUCTIONS
Recommended mix ratios – ScaleBreak®to water
1:3, Respectively, for light cleaning.
1:2, For medium cleaning (defoamer P/N: Foam-Clear-01 recommended).
1:0 (Full strength), for heavy cleaning (defoamer P/N: Foam-Clear-01
recommended).
Note: One gallon (3,7 L) of undiluted ScaleBreak®will dissolve 2.5Lbs (1,1kg) of
calcium carbonate.
CAUTION: ScaleBreak®is not to be used on Stainless Steel; Another Goodway
product is available for these applications (P/N: ScaleBreak®-SS).

GDS-C40/GDS-C92 0121
10
TROUBLE SHOOTING
Problem Cause Solution
Motor does not start GFCI not set
No power
Bad connection
Failed switch
Failed capacitor
Reset GFCI
Check for power at outlet
Check for loose wire connections
Replace
Replace
Water does not
circulate
Directional valve not set
Liquid level too low
Move directional valve all the way to
one side or the other
Make sure liquid level is above pump
housing in bottom of tank
Liquid spewing from
unit
Too much acid
Garden hose not
connected to overow
port
Stop adding acid
Connect hose to overow port
CORROSION RATES
• The corrosion rate of ScaleBreak®for low carbon steel is 4.6 x 10^-6” per hour
(0.0000046”/hr).
• The corrosion of rate on a 90/10 copper/nickel tube is 1.7 x 10^-6” per hour
(0.0000017”/hr).
STORAGE
Run clean water and through pump and hoses. Run antifreeze through pump and
hoses for long term storage and/or freezing temperatures.

GDS-C40/GDS-C92 0121 11
TECHNICAL DATA
Model: GDS-C40 GDS-C92
Motor Power: ½ HP (0,3 kW) ¾ HP (0,6 kW)
Input Power: Standard: 7.6 amps, 115 V, 60 Hz
Optional: 3.8 amps, 230 V, 50 Hz
Standard: 8.6 amps, 115 V, 60 Hz
Optional: 4.3 amps, 230 V, 50 Hz
Power Supply
Cord: 18', 18-3 (5,5 m, 18-3) 18', 16-3 (5,5 m, 16-3)
Output Water
Flow: 15 GPM (56,7 LPM) 21 GPM (79,4 LPM)
Motor Rating: Continuous Continuous
Pump Type: Positive drive centrifugal Positive drive centrifugal
Maximum Head: 65 Ft (19,8 m) 65 Ft (19,8 m)
Degree of
Protection: IP54 IP54
Temperature
Range: 32°F to 120°F (0°C to 48,8°C) 32°F to 120°F (0°C to 48,8°C)
Tank Capacity: 10 gal (37,8 L) 15 gal (57 L)
Wheels: 3" (7,6 cm) Diameter 7.8" (19,8 cm) Diameter
Dimensions: 27" High x 15" Wide x 17" Deep
(68,5cm x 38,1 cm x 43,1 cm)
35" High x 15" Wide x 23" Deep
(88,9 cm x 38,1 cm x 58,4 cm)
Weight: 37 lbs (16,7 kg) net dry 50 lbs (23 kg) net dry
WIRING DIAGRAM GDS-C40 & GDS-C92

GDS-C40/GDS-C92 0121
12
GDS-C40 & C92 PARTS DIAGRAM

GDS-C40/GDS-C92 0121 13
GDS-C40 & C92 PARTS LIST
No. on Diagram Pump Type Product Code Description
1 C92 DS-H09006K C92 Molded Tank
2 C92 DS-H04005 C92 Tank Cap
3 C92 DS-H09008K C92 Wheel (each)
4 C92 DS-H09007K C92 Axle
5 C92 DS-H09009K C92 Axle Circlip Inner 0.8" (22,2mm)
6 C92 DS-H09010K C92 Axle Circlip Outer 0.7" (20 mm)
7 C40 DS-H04020K C40 Molded Tank
8 C40 DS-H04021K C40 Tank Cap
9 C40 DS-H04022K Pair of C40 wheels with axles
20 C40 DS-H04002L22K C40 Motor 220v (exc. fan cover)
20 C40 DS-H04002L120K C40 Motor 110v (exc. fan cover)
20 C92 DS-H09002L22K C92 Motor 220v (exc. fan cover)
20 C92 DS-H09002L11K C92 Motor 110v (exc. fan cover)
21 Both DS-H04012KA Fan cover
22 Both DS-H04012KB Motor Fan
23 Both DS-H03002B Motor Bearings
24 Both DS-H03002F Motor Switch Box
25 C40 DS-H03002D22 C40 Capacitor 220v
25 C40 DS-H03002D11 C40 Capacitor 110v
25 C92 DS-H19002D22 C92 Capacitor 220v
25 C92 DS-H19002D11 C92 Capacitor 110v
26 Both DS-H01502C On/off switch for motor
27 Both DS-H030HJ08 M8 x 1.5" (40 mm) Brass Bolt
27 Both DS-H030HJ07 M8 Brass Nut
27 Both DS-H030HJ09 M8 Brass Washer
28 Both DS-H03002A Motor Shaft Circlip
29 Both DS-H03006 White Arnite Bush
30 Both DS-H03007 Drive Shaft 'O' Ring
31 C40 DS-H04014K C40 Drive Shaft Sleeve
31 C92 DS-H09005K C92 Drive Shaft Sleeve
32 Both DS-H01507K M12 PP Bolt

GDS-C40/GDS-C92 0121
14
GDS-C40 & C92 PARTS LIST CONTINUED
No. on Diagram Pump Type Product Code Description
33 C40 DS-H04013K C40 Flange and Body
33 C92 DS-H09001K C92 Flange and Body
34 Both DS-H0150211A Impellor 'O' Ring
35 C40 DS-H04015K C40 Impellor
35 C92 DS-H09004K C92 Impellor
36 Both DS-H04017K Rotor Cover
37 Both DS-H04016K Rotor Cover 'O' Ring
38 Both DS-H03012K M10 PP Bolt
50 Both DS-H04018KG 3/4" (1,9 cm) bsp Threaded Nipple - 1.5"
(40 mm) long
51 Both DS-H03023 3/4" (1,9 cm) bsp f/f elbow
52 Both DS-H04018KF 3/4" (1,9 cm) bsp Threaded Nipple - 1.7"
(45 mm) long
53 Both DS-H030F11 3/4" (1,9 cm) bsp m/f elbow
54 C40 DS-H090F04 3/4" (1,9 cm) m x 0.7" (19 mm) PP Hose adaptor
54 C92 DS-H190F15 3/4" (1,9 cm) m x 25mm PP Hose adaptor
55 C40 DS-HH019X30 Clear Hose 0.7" (19 mm) ID (per mtr)
55 C92 DS-HH2229 Clear Hose 0.8" (22 mm) ID (per mtr)
56 Both DS-H04018KA Flow Reverser Handle
57 Both DS-H04018KB Flow Reverser Paddle
58 Both DS-H04018KC Flow Reverser Body
59 Both DS-H04018KD Flow Reverser Top Plate
60 Both DS-H04018KE 'O' Ring for Reverser Top Plate
61 Both DS-H03007 'O' Ring for Flow Reverser Paddle
62 Both DS-MI022 M6 x 30mm Socket Cap Head Screw
71 Both DS-HH019X30 Clear Hose 0.7" (19 mm) ID (per mtr)
72 Both DS-H090F04 3/4" (1,9 cm) m x 0.7" (19 mm) PP Hose Adaptor
75 Both DS-H090F06 3/4" (1,9 cm) f x 3/4" (1,9 cm) m Brass Adaptor
76 Both DS-H04024GW Scalebreak Hose Support Bracket
79 Both DS-H04023K 3/4" (1,9 cm) bsp Threaded Nipple -1.3"
(35 mm) long
80 Both DS-H04019K 3/4" (1,9 cm) bsp Union

GDS-C40/GDS-C92 0121 15
GDS-C40 & C92 INLET & OUTLET HOSE PARTS DIAGRAM
Note – to order the entire hose assembly use P/N GDS-HOSE-16x10 (GDS-C40),
GDS-HOSE-19x10 (GDS-C92).
HWG-GHV
HWG-GHV
DS-50
GDS-C40: DS-51
GDS-C92: DS-52
GDS-C40: 1012
GDS-C92: HWC-113
GDS-C40: 1012
GDS-C92: HWC-113
GDS-C40: DS-HH016x30 (10ft or 3m)
GDS-C92: DS-HH019X30 (10ft of 3m)
GDS-C40: DS-H030F03
GDS-C92: DS-H090F07-BRASS

GOODWAY®TECHNOLOGIES CORPORATION
420 West Avenue, Stamford, CT 06902 USA
Tel: [phone] · Toll-Free Tel: [phone]
Fax: [phone] · Toll-Free Fax: [phone]
Email: [e-mail]
Visit: www.goodway.com
P/N:MNL-GDS-C
©Copyright 2021 Goodway Technologies Corp., Stamford, CT USA
Effective date January 26, 2021
Goodway is a Trademark of Crossford International.
Goodway reserves the right to improve products; contact the factory for the latest conguration and uses.
Provides innovative maintenance solutions for a wide variety
of industries including commercial HVAC, food and beverage
processing, power generation and manufacturing.
HVAC & FACILITY MAINTENANCE SOLUTIONS
For Sales Call: 1-800-333-7467
For Service Call: 1-800-370-2855