Regal 42 GRAND COUPE User manual

REGAL 42 OWNER’S MANUAL
MAY 2022 EDITION
42 GRAND COUPE 42 FLYBRIDGE
42 X0 42 FXO

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OWNER’S MANUAL RESPONSIBILITIES
• Select Regal models are spark-ignition models.
•As the spark-ignition marine watercraft owner,
you are responsible for the performance of the
required maintenance listed in your owner’s
manual. Regal Marine Industries, Inc. recom-
mends that you retain all receipts covering
maintenance on your spark-ignition marine wa-
tercraft, but Regal Marine Industries, Inc. cannot
deny warranty solely on the lack of receipts.
•As the owner, you should be aware that Regal
Marine Industries, Inc. may deny you warranty
coverage of your spark-ignition marine water-
craft or a part has failed due to abuse, neglect,
or improper maintenance or unapproved modi-
fications.
•You are responsible for presenting your spark-
ignition marine watercraft to a Regal Marine
Industries, Inc. distribution center or a service
center as soon as the problem exists. The war-
ranty repairs should be completed in a reason-
able amount of time, not to exceed 30 days. If
you have any questions regarding your warranty
coverage, you should contact Regal Marine
Industries, Inc. at 407-851-4360.
CALIFORNIA PROPOSITION 65
Boats manufactured for use in California for model
year 2018 and after meet the California EVAP
Emissions regulation for spark-ignition marine
watercraft. Boats meeting this requirement will have
a label affixed near the helm.
The fuel system in this boat complies with U.S. EPA
mandated evaporative emission standards at time
of manufacture using certified components.
WARNING
!
Operating, servicing and maintaining a recreational
marine vessel can expose you to chemicals including
engine exhaust, carbon monoxide, phthalates, and lead,
which are known to the State of California to cause
cancer and birth defects or other reproductive harm.
To minimize exposure, avoid breathing exhaust, service
your vessel in a well-ventilated area and wear gloves or
wash your hands frequently when servicing this vessel.
For more information go to: www.P65warnings.ca.gov/
marine.
Notes
Introduction
MANUFACTURER’S WARRANTY COVERAGE
This evaporative emission control system is
warranted for two years. If any evaporative emission-
related part on your spark-ignition marine watercraft
is defective, the part will be repaired by Regal
Marine Industries, Inc.
Chapter 1

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Welcome to Regal
I know I speak for everyone at Regal when I thank and welcome you to the ever-growing
family of Regal boat owners. You’ve chosen a boat that is recognized worldwide for its
standard of excellence. Each step in construction has been carefully scrutinized to assure
safety, performance, reliability and comfort for both your passengers and yourself.
Your yacht is certified by the National Marine Manufacturers Association. It also complies
with the applicable standards set by the United States Coast Guard , American Boat and
Yacht Council and the International Marine Certification Institute. Your Regal boat was built
with the same attention to detail and quality of construction that we would expect in a craft
we would purchase ourselves.
Whether you’re a veteran boater or a newcomer, we strongly urge you to read the Regal
owner’s manual thoroughly. Familiarize yourself with the various components of your
vessel, and heed the safety precautions noted herein.
If you have questions that are not covered in this manual, please consult your authorized
Regal dealer for assistance, phone the Regal factory at 407-851-4360 or E-mail us at
www.regalboats.com.
Again, thank you and welcome to the “World of Regal !”
Duane Kuck
President & CEO
Our Mission
With God’s Help and a Steadfast Commitment
to Integrity, We will Develop a Team of
Exceptional People and Relationships to Provide
Exceptional Customer Satisfaction.

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The Regal 42 Owner’s Manual is a model specific document being the 2nd segment of a
2 part manual series.
The General Vessel Information Manual is the 1st segment and is located on the Regal
website. It is a prerequisite for the Regal 42 model specific manual. The General Vessel In-
formation Manual addresses boating information, on board safety, and nautical rules of the
road. Being a seasoned skipper or a newcomer, we strongly urge you to read and become
familiar with both manuals.
The Regal 42 owner’s manual includes specific information on the Grand Coupe and Fl-
lybridge models. Covered are boat systems, auxiliary equipment, vessel opearation, care/
maintenance, storage/winterization, and troubleshooting tips along with technical data in-
cluding drawings.
There may be instances where the IPS (Inboard Propulsion System) and outboard information
is mixed. In some cases wording such as typical is used. In other cases the word outboard
is used to differentiate products for the reader.
The Regal 42 owner’s manual should not be thought of as a complete shop manual.
In addition, read and become familiar with the engine/propulsion and generator operator’s
manuals before operating the vessel. These manuals may a be paper document, DVD, or in
other formats. Further detailed equipment and propulsion system information can be found
in the owner’s packet and on the internet.
Your authorized Regal dealer has received special factory training and their services should
be employed to solve more technical problems. Call 407-851-4360 or refer to regalboats.
com to find the closest authorized Regal dealership.
In keeping with its commitment to improvement, Regal Marine Industries, Inc. is con-
tinually upgrading the product line. Regal notes that all dimensions, specifications,
drawings, models, standard and optional equipment are subject to change without
notice at any time.
Owner’s Manual Scope

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Table Of Contents
2
6
179
193
226
242
250
255
261
Chapter 1- Introduction
Chapter 2- Systems
Chapter 3- Vessel Operation
Chapter 4- Auxiliary Equipment
Chapter 5 - Cosmetic Care & Maintenance
Chapter 6 - Troubleshooting
Chapter 7- Storage & Winterization
Chapter 8- Glossary & Index
Chapter 9 - Technical/Drawings

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Chapter 2
Systems
Overview
The system chapter covers general operating
information regarding on board equipment. Major
systems covered are electrical, fuel, propulsion along
with water and waste. Furthermore, supplementary
system equipment information is found in this
chapter and manual.
Note that select equipment may be optional and not
installed on your vessel. Also, select equipment,
photos, and descriptions may be typical and
may not be an exact representation of your on
board equipment.
Read and understand the equipment owner’s
manuals before attempting to operate any component
as they provide detailed safety, operating, and
troubleshooting procedures and information not
covered in this manual.
PREVENT INJURY, DEATH, AND/OR
PROPERTY DAMAGE!
READ AND UNDERSTAND VESSEL
EQUIPMENT OWNER’S MANUALS
BEFORE ATTEMPTING
TO OPERATE SYSTEM COMPONENTS.
WARNING
Another technical information source is your
authorized Regal dealer as they have received
extensive training on Regal models and systems.

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Air Conditioning
Currently the on board air conditioning system
features 3 air conditioner units located to provide
a balanced zone coverage. The system utilizes a
single pump which delivers cooler seawater to each
evaporator/condenser unit. The drain pan is a rust
free molded composite. Residue water exits through
the shower box. Warmer seawater exits the vessel
overboard through a manifold and various thru-hull
fittings. A vibration isolation system reduces noise.
The sound cover provides up to 50% further noise
reduction which amounts to 3-5 db’s.
The evaporator/condenser unit incorporates a
compressor to compact the environmentally safe
R-410A refrigerant which is comprised of fluorinated
greenhouse gases.
TYPICAL AIR CONDITIONING EVAPORATOR/CONDENSER UNIT
SEA WATER
OUT
SEA WATER IN
EVAPORATOR
BLOWER
COMPRESSOR
PANCONDENSATION
DRAIN TO SHOWER
BOX
The control panels (thermostat) are located for
complete zone comfort. A set of detailed control
panel reference system codes is provided in the
operationg manual for any service issues. A quick
reference code system is located in chapter 10 of
this manual.
AC FILTER- SEE
AIR RETURNS

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AC Seacock/Strainer (Typical)
AC
STRAINER
SEA COCK
HANDLE
OPEN/IN LINE
CLOSED 90
DEGREES TO LINE
TO AC PUMP
TURN COUNTERCLOCKWISE
TO OPEN TOP OF STRAINER
Located in the starboard bilge under an access
cover is the air conditioner seacock and strainer.
Always ensure the seacock handle is in-line with
the hose indicating an “open” position before at-
tempting to start the air conditioning system. This
will permit seawater to circulate through the AC
pump, manifold and air conditioning units.
The AC seacock is labeled close-by for easier
identification. See photo above.
AIR CONDITIONERAIR CONDITIONER
See the section in the following pages for air
conditioner tips including cleaning the sea water
strainer basket.

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AVOID DEATH OR BODILY INJURY
DUE TO SHOCK!
AC PUMP LOCATED IN AFT BILGE IS
230 VOLTS AC CURRENT.
IF SERVICE IS REQUIRED CALL A
CERTIFIED MARINE ELECTRICIAN.
WARNING
Note that all equipment, operation, specifications,Note that all equipment, operation, specifications,
wiring and or hose routing may be subject to changewiring and or hose routing may be subject to change
at anytime due to Regal’s commitment to product im-at anytime due to Regal’s commitment to product im-
provement.provement.
FROM AC PUMP
TO PORT AC UNIT
TO FWD. AC UNIT
TO STBD. AC UNIT
AC PUMP-TYPICAL
The 230 volt A/C pump is located in the bilge. It
provides sea water to operate the 3 independent
A/C units through a manifold in the starboard bilge.
The AC pump sources water from a seacock/
strainer previously mentioned.
AVOID POSSIBLE AC PUMP FAILURE/
SYSTEM DAMAGE
DUE TO SYSTEM LOSING ITS PRIME
CAUSING THE AC PUMP TO QUIT
ON START-UP DUE TO A LACK OF WATER!
IF VESSEL IS HAULED OUT OF WATER
(EXCEPT FOR WINTERIZATION)
ENSURE THE AC SEACOCK HANDLE
IS TURNEDTO THE “OFF” POSITION
BEFORE LIFTING THE VESSEL.
REMEMBER TO TURN THE SEACOCK
HANDLE TO THE “ON” POSITION BEFORE
RE-STARTING THE AC SYSTEM.
CAUTION
Seawater is drawn thru the seacock into the AC
pump. From the AC pump seawater travels to the
starboard bilge mounted manifold for distribution
to the 3 air conditioner units. Note the manifold
distribution description below of hose runs for ser-
vice needs or troubleshooting.
AC PUMP HARNESS JUNCTION BOX
HIGH VOLTAGE!
AC PUMP DISTRIBUTION MANIFOLD

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Reverse Heat
The air conditioning system feature a reverse heat
cycle. This can be extremely valuable to boaters in
colder climates especially for early spring and late
fall cruising.
To accomplish reverse cycle heating, the R-410A
refrigerant flows in the opposite direction through a
reversing valve located on the evaporator/condenser
unit. Heat is transferred from the seawater in the coil
of the condenser to the R-410A refrigerant and then
to the air as it is blown through the evaporator to
the cabin.
Obviously, the temperature of the seawater will
affect the air conditioner efficiency.
The temperature variance for cooling efficiency is:
Up to 90 Degrees F. ( 32.2 Degrees C. )
The temperature variance for heating efficiency is:
Down to 40 Degrees F. ( 4.4 Degrees C. )
Typical Air Conditioning System Operation
Below is a basic quick start-up checklist for the air
conditioning system. For more in depth information,
refer to the vendor operation manual.
Operations Quick Start-Up Checklist:
1. Check the AC seawater strainer for debris.
2. Make sure the AC seawater pump sea cock
is opened completely (handle should be in-line
pointing up).
3. Activate the desired air conditioner breaker on
the boat’s main AC control panel.
4. Check the hull side for a steady stream of
seawater. Seeing water here is normal when the
AC pump is running. If stream is diminished or no
water emits from the fitting immediately turn the AC
pump off and investigate the cause of the problem.
5. Press the thermostat Power button once to
activate the air conditioning system. A blank screen
displays when system is off and indicates present
cabin temperature.
6. For cooling or heating press and release the
Mode button until the desired LED is illuminated
ie; automatic mode.
7. Press the Up or Down button to set the desired
cabin temperature. To view the set point, momentarily
press and release the Up or Down button.
8. Auto fan LED lights when Auto fan speed is
selected.

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Note: The AC display continually monitors the system components. Should a problem develop it sends a diagnostic code to the control
(thermostat) display. Refer to the vendor air conditioning manual (troubleshooting section) to assist in identifying any problem.
Typical Air Conditioning Control Panel

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Air Conditioner Tips
Seawater Strainer
The air conditioner seawater strainer is located
in the bilge and should be cleaned periodically of
debris which can inhibit or stop the fresh sea water
supply. Always turn the sea cock handle to the off
position (90 degrees to the hose fitting) before
cleaning a seawater strainer.
Remove the basket by turning the plastic cap in a
counterclockwise direction. Set the cap and the O
ring aside. Pull the basket from the unit, rinse with
water, air dry and reinstall. Sediment at the bottom
can be removed by just turning the plug in a coun-
terclockwise direction. Place a container under the
strainer to catch the sediment. Coat the O rings with
waterproof marine lubricant containing a silicone or
teflon base. Reinstall O rings along with the plug
and plastic cap. Rotate the seacock handle to the
in-line position and check for leaks.
For location information see the photo shown earlier
in this section.
Drain Pans
As noted on an earlier page the AC evaporator/
condenser features a 2” deep drain pan connected
by a hose that runs to a shower box and eventually
exits overboard. Periodically just like your home AC,
the pan needs to be rinsed clean of debris and pos-
sible mold buld-up.
You can use a purchased product made specifically
for cleaning AC units. Disconnect the outlet hose
from the AC pan and install made up hose (5/8” )
that will catch the used solution to fill a small con-
tainer. Dispose of the container in accordance with
federal, state and local regulations. Pour the solution
into the pan and allow time for it to drain. Reconnect
the original drain pan hose when finished.
Condenser Coil Cleaning
Periodically the condenser coils are recommended
to be cleaned. This procedure should be done by a
professional since an acid solution must be used.
PREVENT INJURY OR DEATH!
DISCONNECT
ALL ELECTRICAL POWER SOURCES
BEFORE ATTEMPTING
TO OPEN, REPAIR, OR REPLACE ANY
AIR CONDITIONER COMPONENTS.
WARNING

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Tips Regarding AC Filters
Normal air conditioner filter cleaning schedule is
recommended not to exceed 500 hours. See the
air conditioner operator’s manual for detailed infor-
mation.
1. To locate the forward air conditioner filter lift the
access cover up under the forward berth mattress.
The filter is located on the forward face of the evapo-
rator. Remove filter from the unit.
Periodically wash the filter in clean, soapy water and
air dry. Reinstall in the evaporator, close the cover
board, and mattress.
2. The salon port air conditioner filter is topically
located aft of the port salon seat behind a return
air grate. Access the 2 tabs at the top of the return
air grate and rotate each tab to remove the grate
cover. Lift the filter from behind the grate.
Follow the recommended cleaning steps as pre-
viously mentioned. Replace the filter in the grate
cover, close the cover and rotate the tabs to lock
grate in place. See the photo at top right.
FORWARD AC FILTER LOCATION
3. The salon starboard air conditioner filter is
typically located near the helm seat at the lower
starboard coming panel behind a rectangular return
air grate. See the photo below.
In a similar fashion as the port air conditioner ac-
cess the 2 tabs at the top of the return air grate and
rotate each tab to remove the grate cover. Lift the
filter from behind the grate.
Follow the recommended cleaning steps as pre-
viously mentioned. Replace the filter in the grate
cover, close the cover and rotate the tabs to lock
grate in place.
PORT AC FILTER LOCATION / ROTATE TABS
STBD. AC FILTER LOCATION / ROTATE TABS

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AC CIRCULATING SLOTS- BACK SPLASH
Tips Regarding AC Returns & Ducts
1. Never block off any AC return grille or duct. The
unit will not operate properly without sufficient re-
turn air flow.
2. On select models the salon port and starboard
air conditioners use the counter top back splash
slots below the side windows for circulating air.
Never block these slots as the AC system may not
operate efficiently. See the photo below.
On select models adjustable air vents are found in
various locations on board the vessel. Adjust the
AC vent louvers as needed for the most comfort-
able air flow.

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Possible Problems/Solutions
1. No or little water is noticed at the
thru-hull fittings and a HPF fault code
shows on the display which means
the high pressure switch is open.
The strainer or intake hose may be
clogged, sea cock may be closed, a hose may be
collapsed or the AC pump may be defective.
2. Air conditioner will not start. Ensure the proper
AC breaker is activated on the ship’s main control
panel.
3. No cooling or heating. Lower or raise set point
on thermostat control to offset set point being sat-
isfied. Check for obstructed seawater flow. Re-
move discharge side of pump hose to purge air
(air-lock). Seawater temperature too high for cool-
ing and too low for heating.
4. Fan coil is iced. Raise or lower control set point.
Clean return air filter. Switch AC to heat until ice
melts or as a last resort use a hair dryer to melt ice
as needed.

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CO (Carbon Monoxide) Detectors
TYPICAL CO
DETECTOR
The most common forms of CO on board vessels
are petrol engines/generators and if applicable,
propane heating and cooking devices.
Note that even if your vessel’s propulsion system is
diesel based follow the CO precautions as the vessel
moored next to you may be a CO poison contributor.
Note on the main ship’s panel there is a 2 step process
required to deactivate the onboard CO detectors.
The CO detector uses a mini computer to measure
and accumulate CO levels. Using the principle of
“time weighted averaging” the detector monitors
CO concentrations, temperature, humidity and time
to calculate COHb levels. To explain COHb, our
bodies prefer to absorb CO to oxygen and COHb
is the absorbed ratio stated in a percent.
If the detector senses high levels of CO the alarm will
sound in a few minutes. If lower levels are sensed,
the detector will accumulate the data and sound an
alarm when the appropriate level is reached. Read
and understand the CO owner’s manual.
The CO circuitry works to its best performance
when continually activated plus it accords advanced
warning when entering an area high in CO.
The CO detectors operate using 12 volt DC power
and over current protection inside the battery man-
agement panel.
The test cycle should be activated weekly. Simply
press the button. Refer to the CO detectors owner’s
manual for an explanation of the test cycle indicators.
Note that the green light will flash every 180 sec-
onds which is normal.
For further information read the Regal General Ves-
sel manual available at the Regal web-site.
POWER INDICATOR
DANGER INDICATOR
TEST/MUTE BUTTON
CO (Carbon Monoxide) Detector Operation
CARBON MONOXIDE IS A TASTELESS,
ODORLESS AND INVISIBLE GAS
THAT CAN CAUSE DISCOMFORT,
SEVERE ILLNESS, AND EVEN DEATH.
EXERCISE CAUTION WHILE OPERATING
GENERATOR OR ENGINES
IN CONFINED SPACES OR AT DOCK
SIDE. DO NOT ALLOW HULL EXHAUST
OUTLETS TO BECOME BLOCKED OR
EXHAUST FUMES CAN BECOME TRAPPED
IN AND AROUND THE CONFINES
OF YOUR BOAT.
DURING IDLE AND SLOW CRUISE
CONDITIONS, BILGE BLOWERS SHOULD
BE USED.
DANGER
CARBON MONOXIDE PRECAUTIONARY
LABELS ARE LOCATED AT THE HELM,
TRANSOM AND CABIN AREAS.
ENSURE THAT ALL ABOARD READ AND
UNDERSTAND THE SIGNS AND EFFECTS
OF CARBON MONOXIDE CO.
NOTICE
TYPICAL

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CO Detector Notes
1. The date of manufacture is embossed at the
bottom of the detector. Replace unit after 7 years
even though battery life is longer.
2. Test weekly. Clean face weekly. Do not use
solvents.
3. When CO event occurs alarm beeps 4 times, 5
second pause. Repeats.
4. End of life cycle is 1 beep every 60 seconds.
To deactivate unit at life’s end hold button down for
1 minute. Red and green LED lite up. Press button
5 times. Red and green LED flash, horn beeps. Unit
is deactivated.
5. The detector performs a self-diagnosis of critical
components every 180 seconds. Should a major
component fail the unit enters a fault in which both
visual and audible indicators activate.
6. If an alarm sounds move everyone to fresh
air immediately.
This indicates a rate of 10%
COHb has been reached. Call your emergency
services. Do not re-enter the vessel until emergency
personnel have arrived.
Your alarm reactivates within a 24 hour period
Call a qualified technician to inspect the vessel.
Note that the CO detector will clear when the CO
concentration has dropped below 70 ppm (parts
per million).
7. Avoid spraying cleaning liquids directly on the
alarm.
8. Clean detector face weekly by wiping surface of
alarm with clean soft lint free cloth.

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Electrical System
Typical AC/DC Ship Panels & Auxiliary Displays

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DC (Direct Current)
In this section, basic DC (direct current) and
AC (alternating current) electrical systems are
introduced. Select electrical components are
reviewed along with their location and function
within the electrical system.
There may be instances where the IPS (Inboard
Propulsion System) and outboard information is
mixed. In some cases wording such as typical is
used. In other cases the word outboard is used to
differentiate products for the reader.
For more complicated issues outside the scope of
this manual contact your closet authorized Regal
dealer. They have undergone extensive training on
the Regal boat systems.
Be sure to read and follow any danger, warning,
caution, or notice labels in reference to the
vessel’s electrical system or individual equipment
components. Also, refer to the owner’s packet for
further product safety information or the internet.
Note: The electrical equipment shown in this
manual and the actual component on your vessel
may appear different as Regal is constantly
updating components and processes as part of
its on-going dedication to product improvement.
Also, operating instructions may vary depending
on the equipment as component vendors are
constantly updating their applications.
PREVENT SEVERE INJURY OR DEATH!
DISCONNECT
ALL ELECTRICAL POWER SOURCES
BEFORE ATTEMPTING
TO REPAIR OR REPLACE
ANY ELECTRICAL COMPONENT.
WARNING

20
Main DC Panel Breaker Panel