Zeagle Envoy Octo 320-3110 User manual

This owner’s manual uses signal words recommended by the
American National Standards Institute (see ANSI Z535.4) to des-
ignate levels of hazard seriousness. These signal words and their
designations are as follows:
DANGER: Indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
This signal word is to be limited to the most extreme situ-
ations.
WARNING: Indicates a potentially hazardous situation
which, if not avoided, could result in death or serious
injury.
CAUTION: Indicates a potentially hazardous situation
which, if not avoided, may result in minor or moderate injury.
It may also be used to alert against unsafe practices.
Note to European Customers: The Zeagle Octopus regulator
models Envoy Octo 320-3110 and ZX Octo 320-1110 have passed
EN250:2000 tests for CE Certification. However, they were not
submitted for cold water testing under EN250:2000 Section 5.11.3
and therefore are simply not rated by the EU for diving in water
temperatures below 50° F. (10° C. ).
The CW 320-5010 model, has not yet been submitted for EN250
Certification and is not CE marked for sale in the European
Community.
EN250:2000 Certification extends to 50 m.
Breathing air used in Zeagle Scuba regulators should meet
European EN12021 standards.

Table of Contents: Pages
Introduction – Safety Information
Warranty Information
Disclaimer and Limitation of Remedy
Nitrox Use
Model Features & Differences
Resistance Control Knob Dive / Pre-Dive Lever
Cold Water Diving Information
Pre-Dive Check
Post-Dive Care
Maintenance
Code Of The Responsible Diver
Specifications
Service Record
Notes
1
2
3
4
7
8
9
10
11
12
13
13
14
15
16

2
Congratulations on your Zeagle Regulator purchase!
Your new Zeagle ZX, CW or Envoy Octopus regulator, has been
designed and manufactured to the highest possible standards of
performance and reliability. With the reasonable care outlined in this
manual it will provide you with many years of diving enjoyment.
Since 1979, Zeagle Systems Inc. has been providing divers with
Scuba equipment and Buoyancy Control Devices. Zeagle Systems
and our worldwide network of authorized dealers are always ready to
serve you. For more information on our products, and for the dealer
nearest you, visit our web site at www.zeagle.com. Thank you for
choosing Zeagle!
Safety Information
Read these instructions carefully before using your regulator, and
keep this manual for future reference.
Following the care and maintenance section at the end of this book-
let will help ensure reliable service.

Limited Lifetime Warranty To The Original Owner
1. Your regulator is guaranteed against defects in materials and work-
manship. This guarantee does not cover normal wear, or damage from
accident, abuse, neglect, alterations, improper usage, or failure to follow
reasonable care and maintenance as outlined in this manual. Under this
limited warranty, Zeagle will either repair or replace, at its sole option, any
original equipment or parts that fail to perform as intended. Shipping and
Labor charges are not included and must be paid by you. This Limited
Lifetime Warranty excludes filters, hoses, O-rings, diaphragms and
mouthpieces, which are warranted for two years from the regulator’s date
of purchase. The second stage serial number is stamped on the mouth-
piece tube. To read this serial number you must fold back the flexible
silicone mouthpiece to expose the numbers. Each serial number consists
of a pre-fix letter followed by six numbers.
2. For proof of original ownership, you must save the original purchase
receipt. It is your record of when and where the regulator was purchased.
It also lets you know when your annual service should be performed. If
your bring your regulator for service at a Zeagle dealer who has not done
business with you before, they will ask you for receipts to show you are the
original owner and you have had the regulator serviced annually.
3. To keep the original-owner Limited Lifetime Warranty in effect, you
must have your regulator inspected and serviced annually, within 30
days before or after the anniversary of the purchase date. Failure to do
so will invalidate your warranty. This servicing must be performed by an
authorized Zeagle dealer. Save the receipts from this servicing for your
records.
To register your regulator purchase with Zeagle, fill out and return your
product registration card or go to www.zeagle.com to register your regula-
tor within 30 days of purchase.
3

4
4. This limited warranty applies only to the original purchaser, and then
only to certified divers.
5. Sometimes products from other manufacturers are attached to Zeagle
Equipment. This warranty does not cover those other products or make
any claims as to the performance or suitability of those other products.
6. This limited warranty applies only to regulators sold in the USA through
authorized Zeagle Systems dealers.
7. This warranty gives you specific legal rights. You may also have other
rights that may vary from state to state.
8. This specific warranty applies only to regulators purchased from
Authorized Zeagle Dealers located within the United States. Warranty cov-
erage in countries other than the US varies. Outside the US your dealer
will be able to get further Warranty information from the Authorized Zeagle
Regional Distributor.
Zeagle expressly limits any and all warranties, expressed or implied, to the
terms of the limited warranty as set forth above. Your remedies are limited
to those contained herein and are in lieu of all other remedies, whether
based on breach of warranty or contract, negligence, strict product liability
or other tort. Zeagle specifically disclaims liability for any consequential,
special or indirect damages arising out of the use of Zeagle Equipment.

5
CAUTION
Scuba products are subject to conditions of extreme wear and cor-
rosion. Inspection and maintenance are required to ensure contin-
ued performance. Zeagle recommends that you have your regulator
inspected and serviced once a year on the anniversary date of its
purchase at any authorized Zeagle dealer worldwide. Zeagle Scuba
equipment should be used by certified Scuba divers only.
WARNING
1. Scuba diving is an adventuresome activity that involves a degree
of risk. Zeagle Systems Inc. Self Contained Underwater Breathing
Apparatus (SCUBA) equipment is only to be used by those trained and
certified by a nationally recognized scuba training agency. Diving
without the necessary training in safe diving procedures, or without
observing the practices outlined by your training agency for your level
of certification, is extremely hazardous and could result in serious
personal injury or death. This owner’s manual is in no way meant
to be a substitute for the instruction received from a certified scuba
training agency.
2. Zeagle regulators must be serviced only by dealers or technicians
trained and authorized to service Zeagle Scuba equipment. At no
time should any unauthorized person attempt to repair the regulator
or adjust any nuts, bolts or screws other than those used to mount
the regulator to, or dismount it from the tank valve. Scuba equipment
that is not properly serviced might malfunction during use, putting the
diver at risk of serious personal injury or death.

6
CAUTION
1. The high-pressure outlets (HP Ports) on Scuba 1st Stages are
distinctly larger than the low-pressure outlets. Only devices with
fittings, hoses and components designed for the full tank pressure
that the regulator will be mounted on, such as Submersible Pressure
Gauges, are to be installed in these ports.
2. During installation, the O-ring hose fittings will seal with hand-tight
pressure, but may come loose during use if not tightened carefully
with a small wrench. Proper torque for the hose fittings is 40-45 in
lbs. (4.5 - 5 joules) Excessive tightening will not help the seal and may
damage the parts (see DEMA Guidelines No. 101, Low Pressure Hose
Installation Caution Statement; ANSI American National Standard for
Underwater Safety, paragraph 9.3.1).

7
NITROX USE
Zeagle regulators are manufactured using materials suitable for use
with oxygen enriched gases (i.e., Nitrox, etc.) providing the oxygen
content does not exceed 40%. The regulator must be kept “Oxygen
Clean” and used only with certified clean air mixtures to maintain this
status. Once the regulator is used with air not certified to be clean
for enriched air use, the regulator will have to be cleaned again for
enriched air use by a certified technician.
DANGER
Using nitrox (i.e., gas mixtures containing oxygen in excess of 21%)
requires special training and procedures. Improper use of nitrox can
lead to personal injury, convulsions, drowning, and death.
Use of gas mixtures containing oxygen in excess of 40% with this regu-
lator, can lead to fires and explosions, causing severe personal injury
and death.
DANGER

8
Model Features & Differences
The Envoy Octopus (320-3110) has
same high performance flow capacity
as the CW and ZX models. It has the
Dive / pre-Dive Lever which is very
important in Octopus regulators to
control unwanted venturi free-flows
when the regulator is not in the diver’s
mouth. It is the lightest of these three
Zeagle Octopus models.
The CW Octopus (320-5010) is
mechanically the same as the Envoy
Octopus, with the addition of a finned
Heat Sink at the inlet side of the regu-
lator. This heat sink absorbs latent
heat from the surrounding water which
helps warm the air coming from the
first stage before it cools the lever
assembly. This makes it a good
choice for cold water and ice diving.
The ZX Octopus (320-1110) is mechani-
cally the same as the CW Octopus, with
the addition of a Breathing Effort Control
Knob on the side of the regulator oppo-
site the hose. This knob controls the
initial cracking effort of the second stage
and can be adjusted counterclockwise for
minimum inhalation effort, or clockwise to
increase the inhalation effort to prevent
free flows when heading into a strong
current. The ZX Octo is really a Zeagle
primary 2nd stage with a yellow cover.

9
Fig. 6
DIVE / PRE-DIVE VENTURI LEVER
This lever controls the regulator’s
Venturi Boost. The Plus and Minus
Positions for the lever are marked
on the case beside the lever. To
avoid unexpected venturi free flows
at the surface, or when jumping into
the water, the lever should be set
in the PRE-DIVE “-” (forward) posi-
tion shown at the left. Because an
Octopus regulator often spends the
Clockwise
Counter Clockwise
This knob adjusts the spring load on the second stage valve and so var-
ies the initial inhalation effort. To adjust the Resistance Control Knob to
the easiest breathing setting, turn the knob fully counter-clockwise (fig. 6).
Sometimes a slight hissing flow of air may be heard at this setting. If this
occurs, turn the knob clockwise (fig. 7) just enough to stop the hissing.
RESISTANCE CONTROL KNOB (ZX Octopus Only)
Fig. 7
entire dive out of the diver’s mouth, it should be left during the entire dive,
with the lever in the minus position to avoid unintentional free-flows. If the
Octopus regulator is used, the lever can be moved to the DIVE “+” (back)
position. However, if an emergency occurs and the user forgets to move
the lever to the DIVE “+” (back) position, the regulator will still deliver its
full capacity of air, it will just have a slightly higher inhalation effort.

10
Cold water is defined as water at a temperature of 50 degrees F (10°
C) or lower. In cold water there is a risk of the first or second stage
freezing. The risk of freezing is increased as the ambient tempera-
ture gets lower, the air flow increases, and/or the moisture content
of the air supply increases. Regulators for cold water use should
have environmentally sealed first stages to prevent water entry and
lower the chance of freezing. The second stages should have extra
heat absorbing features such as the metal Heat-sink found on the
Zeagle ZX and CW Octopus regulators. Extra care should be taken
with Octopus regulators used in cold water diving because unlike the
primary second stage, they do not spend the entire dive in the diver’s
mouth, gaining the benefits of warm exhaled breath. It is not possible
to completely eliminate regulator freezing under all conditions. In
order to reduce the possibility you should:
1. Start the dive with the regulators as warm as possible. If the air
temperature is far below freezing, try to warm the regulators by pour-
ing warm water over them or dunking them in warm water just before
entry.
2. If an Octopus regulator is put into the mouth underwater (IF safely
possible), try to start the breathing cycle with a long exhalation to get
the interior of the 2nd stage as warm as possible before the first breath
is drawn.
3. Avoid pushing the purge button in the second stage during cold
water diving operations.
4. Avoid high rates of breathing, and excessive inflation of buoyancy
devices or dry suits. The deeper the dive the greater the risk.
5. Do not practice unnecessary buddy breathing, etc.
6. Do not use your regulator to fill lift bags, etc.
7. Keep YOUR regulator in YOUR mouth. In an emergency, offer or
take the spare regulator. When taking the spare regulator, do not hit
the purge button to clear the water (if possible). Clear the regulator
with as long a first exhalation as is safely possible.
COLD WATER DIVING

11
PRE-DIVE CHECK (entire regulator)
1. Before mounting any Scuba regulator onto a tank valve, you must
open the valve briefly to blow out any water trapped in the outlet area
of the valve. Failing to perform this simple step will often result in water
and contaminants being blown into the interior of the regulator, which in
turn will cause future mechanical problems in the regulator.
2. Prior to each dive always check to make certain your regulator has
no potential water leaks by inhaling lightly on the regulator with the dust
cap properly installed, or the tank air valve turned off. You should be
able to draw in very little if any air. If you can draw in any quantity of
air, either the exhaust valve is failing to seal properly, or there may be a
pinhole leak in the mouthpiece or second stage diaphragm.
3. Mount the 1st stage regulator on the tank valve with the clear dia-
phragm end (with the black logo showing underneath) facing down.
4. Just before turning on the tank air valve, check to make sure that
the yoke nut or DIN connection is tight and that the regulator body is
aligned properly, with no kinks in the hoses. In the case of DIN connec-
tions, check that the DIN connector O-ring on the regulator is in place
before installing the regulator into the valve. Always carry spare DIN
connection O-rings (Zeagle p/n 160-0111-N7).
5. Turn the tank valve on VERY slowly. Check for air leaks and proper
breathing function of the regulator.
WARNING
If you hear any unusual leaks, turn the tank valve off. Do not use the
regulator until the source of the leak has been found and corrected
by an authorized Zeagle Scuba service technician. Always mount the
regulator on the valve with the clear diaphragm end (with black logo
showing underneath) pointed downwards.

12
4. The ZX has a Resistance Control Knob. The Valve Seal in the
second stage will give longer service if the Resistance Control Knob
on the ZX second stage is turned fully counter clockwise when the
regulator is stored longer than a week.
1. After the dive, dry the dust cap and place it securely on the 1st
stage regulator inlet. On multiple tank dives, keep water out of the
regulator inlet when changing the tanks. Neglect of these simple pro-
cedures is a major cause of corrosion and wear in scuba regulators.
2. With the dust cap securely in place, rinse the first and second
stage in clean fresh water. DO NOT purge the regulator before or
during rinsing since this may introduce water into the second stage
and the low-pressure hose. After rinsing, reconnect the regulator to
an air supply and thoroughly shake all excess water from the second
stage. Press the Purge cover (with the regulator attached to a pres-
sure source) several times to blow the rinse water out of the inner
mechanism. Allow the entire regulator to air dry before storing. For
reasons of hygiene, equipment subjected to frequent use in training,
rental, etc. should finally rinsed in water containing a suitable steril-
izing agent. The best sterilizing solutions for your regulator are soap
based. If any stronger chemicals are used, make the immersion very
brief and rinse the regulator out again thoroughly. Failure to rinse
sterilizing chemicals out of the regulator will cause serious damage to
plastic parts of the regulator. This will result in cracking of hard plastic
parts and shrinking or swelling of soft plastic parts.
NOTE: DO NOT USE SOLVENT CHEMICALS TO CLEAN THE
REGULATOR
3. Store the clean dry regulator in a clean bag or storage box, away
from sunlight, excessive heat and humidity.
POST-DIVE CARE

13
It is essential that your regulator is checked at least annually by an
authorized Zeagle regulator technician. Unusually heavy use, or use
in dirty or contaminated water may result in the need for more frequent
service. A service record has been provided at the end of this manual
to assist you in keeping your regulator’s service up to date.
Ask your Zeagle dealer for information on the following products to
use with your Zeagle Regulator, adding to your diving enjoyment and
safety. You can also find information on Zeagle products at www.
zeagle.com .
• Zeagle Instruments
• Zeagle Alternate Air Sources
• Zeagle BCD’s
• Zeagle Regulators
MAINTENANCE
The Code of the Responsible Diver
• “As a responsible diver I understand the risks I may encounter while
diving. I will seek experience and knowledge from those with more
and will share mine with those who have less.”
• “Superior divers use their superior knowledge to stay out of situations
that would require their superior skills.”
• “Your equipment can be excellent, but it is not responsible for you.”
• “Your training can be excellent, but it is not responsible for you.”
• “Your buddy can be excellent, but he is not responsible for you.”
• “You are responsible for you: Be excellent!”

14
HOSE LENGTH ............................................
HOSE WEIGHT ...........................................
ENVOY OCTO WEIGHT ..............................
CW OCTO WEIGHT ....................................
ZX OCTO WEIGHT .....................................
MATERIALS:
Cover ...........................................................
Case ............................................................
Poppet Seat .................................................
O-Rings ........................................................
Diaphragm ...................................................
Exhaust Valve ..............................................
Mouthpiece ..................................................
36 in. (.914 m)
.40 lb. (.180 kg)
.413 lb. (.187 kg) ( w/o hose )
.488 lb. (.221 kg) ( w/o hose )
.550 lb. (.249 kg) ( w/o hose )
Flexible Thermoplastic
Thermoplastic
Elastomer
Buna-N
Elastomeric Polymer
Elastomer
Silicone
SPECIFICATIONS
Envoy Octopus 320-3110: Downstream valve, balanced diaphragm with a Diver
Adjustable Dive/Pre Dive Venturi Lever
CW Envoy Octopus 320-5010: Has all of the Envoy Octopus features, plus a finned
Heat-sink for added resistance to freezing.
ZX Octopus Model 320-1110: Has all of the Envoy and CW Octopus features, plus a
Control Knob for fine breathing effort adjustments.

15
Service Record
Service Performed:
Date:
Date Purchased:

Notes:
The date of purchase, dive store, and contact information
at the store should be written on this page. A copy of the
receipt should also be stapled to this page for future records.
KEEP YOUR RECEIPTS TO SHOW PROOF OF BEING THE
ORIGINAL OWNER
16

Zeagle Systems Inc.
37150 Chancey Road,
Zephyrhills, FL, 33541
Phone: [phone]
Fax: [phone]
www.zeagle.com
10/08
p/n 175-1638
European Certication Information
EC Type examination (Article 10) by:
SGS United Kingdom Ltd.,
Weston-super-Mare,
BS22 6WA,
UK.
Notied Body Number 0120
Meets EN250:2000 Standards
Revision F
© 2008 Zeagle Systems, Inc.