Zeagle F8 OCTOPUS User manual

OWNERS MANUAL
ULTIMATE PERFORMANCE IN ANY CONDITION

22
©2015 ZEAGLE INC
Introduction + Safety Information.................................................................................................................................................................3
F8 Warranty Information ...................................................................................................................................................................................... 4
ONYX II & ENVOY II Warranty Information.......................................................................................................................................6
Disclaimer and Limitation of Remedy................................................................................................................................................... 8
Regulator Systems ........................................................................................................................................................................................................ 9
Safety Information .........................................................................................................................................................................................................12
Nitrox Use/First Stage Features.................................................................................................................................................................13
Cold Water Diving Information .......................................................................................................................................................................15
Innovative Product Features .........................................................................................................................................................................18
First Stages................................................................................................................................................................................................................18
Second Stages.....................................................................................................................................................................................................19
Special Features - F8 & F8 Octopus..................................................................................................................................20
System Set-Up......................................................................................................................................................................................................................21
Operation................................................................................................................................................................................................................................. 23
Rapid Adjustment Knob....................................................................................................................................................................... 23
Flexible Purge Cover................................................................................................................................................................................ 23
Venturi Control Lever.................................................................................................................................................................................25
 SeatSavingOrice(F8Only).........................................................................................................................................................26
Post Dive Care..................................................................................................................................................................................................................29
Required Service...........................................................................................................................................................................................................30
Service Record.....................................................................................................................................................................................................................31
TABLE OF CONTENTS

3
CONGRATULATIONS ON YOUR ZEAGLE REGULATOR PURCHASE!
Your Zeagle 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.
This manual covers these Zeagle regulator systems:
F8 – ONYX II – ENVOY II
F8 OCTOPUS – ONYX II OCTOPUS – ENVOY II OCTOPUS
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!
3

4
F8 Limited Lifetime Warranty
Zeagle warrants this regulator against defects in materials and workmanship for the
lifetime of the product except as noted below. This warranty 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. To validate your warranty, you must complete
and return your warranty registration card within 30 days of purchase or register online
at Zeagle.com. The warranty card includes the model no. and serial no. Please use this
information if you chose to register your regulator online.
To obtain warranty service, you must deliver the regulator to the factory, or one of its
authorized repair facilities. If you send the regulator to the factory, you must pay the
shipping charges to the factory. If the regulator is returned to the factory and it is
determined that the problem is due to material or manufacturing defect, there will be
no charge for parts, labor or return shipping.
This warranty excludes filters, hoses, O-rings, seals, diaphragms, mouthpieces, and any
plastic components which are warranted for two years from the regulator’s date of
purchase. This warranty does not extend to equipment used for rental or commercial
purposes.
1. This warranty is not contingent upon proof of service and will remain in eect for the
lifetime of the product. It is required, however, that maintenance include an annual
safety inspection to be performed by an authorized Zeagle dealer or factory.

5
2. Factory or authorized dealer servicing is required at intervals of 200 dive hours
or 2 years, whichever occurs first. This service will include disassembly, cleaning,
replacement and lubrication of all o-rings and seals, and safety check.
3. For proof of 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.
4. This warranty does not cover products from other manufacturers or make any claims
as to the performance or suitability of those other products when attached to your
Zeagle regulator.
5. This limited warranty applies only to regulators sold in the USA through authorized
Zeagle dealers.
6. This warranty gives you specific legal rights. You may also have other rights that may
vary from state to state.
7. This warranty applies only to regulators purchased from Authorized Zeagle Dealers
located within the United States. Warranty coverage 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.
F8 LIMITED LIFETIME WARRANTY

6
ONYX II & ENVOY II LIMITED LIFETIME WARRANTY
Zeagle warrants this regulator against defects in materials and workmanship for the
lifetime of the product except as noted below. This warranty 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. To validate your warranty, you must complete
and return your warranty registration card within 30 days of purchase or register online
at Zeagle.com. The warranty card includes the model number and serial number. Please
use this information if you chose to register your regulator online.
To obtain warranty service, you must deliver the regulator to the factory, or one of its
authorized repair facilities. If you send the regulator to the factory, you must pay the
shipping charges to the factory. If the regulator is returned to the factory and it is
determined that the problem is due to material or manufacturing defect, there will be
no charge for parts, labor or return shipping.
This warranty excludes filters, hoses, O-rings, seals, diaphragms, mouthpieces, and
any plastic components which are warranted for one year from the regulator’s date of
purchase.
1. This warranty does not extend to equipment used for rental or commercial purposes.
This warranty is not contingent upon proof of service and will remain in eect for the
lifetime of the product.

7
2. Factory or authorized dealer servicing is required at intervals of 100 dive hours or 1
year, whichever occurs first. This service will include disassembly, cleaning, replacement
and lubrication of all o-rings and seals, and safety check.
3. For proof of 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.
4. This warranty does not cover products from other manufacturers or make any claims
as to the performance or suitability of those other products when attached to your
Zeagle regulator.
5. This limited warranty applies only to regulators sold in the USA through authorized
Zeagle dealers.
6. This warranty gives you specific legal rights. You may also have other rights that may
vary from state to state.
7. This warranty applies only to regulators purchased from Authorized Zeagle Dealers
located within the United States. Warranty coverage 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.
ONYX II & ENVOY II LIMITED LIFETIME WARRANTY

8
DISCLAIMER AND LIMITATION ON
REMEDY
(Some states do not allow limitations on how long an implied warranty lasts or do not
allow exclusion of incidental or consequential damages, so the following limitations or
exclusions may not apply to you.)
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.

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The Zeagle F8 Regulator is the top of the Zeagle
Regulator line, designed to perform in any condition.
The perfect travel regulator, the F8 is the lightest of the
Zeagle regulator line.
F8 REGULATOR OVERVIEW
F8 REGULATOR SYSTEM

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The Zeagle ONYX II is an easy breathing high
performance regulator.
A high performance environmentally sealed regulator
with adjustable first and second stages.
ONYX II REGULATOR SYSTEM

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The Zeagle ENVOY II is a regulator with tremendous value
with uncompromising performance.
Best value, with an adjustable
second stage.
ONYX II & ENVOY II REGULATOR OVERVIEW
ENVOY II REGULATOR SYSTEM

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IMPORTANT SAFETY INFORMATION PLEASE READ CAREFULLY
Scuba products are subject to conditions of extreme wear and
corrosion. Inspection and maintenance are required to ensure continued
performance. Zeagle requires 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.
Zeagle regulators are manufactured using materials suitable for use with EAN
(i.e., Nitrox, etc.) providing the oxygen content does not exceed 40%. The
regulator must be kept “Oxygen Clean” and used only with EAN 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 EAN
use by a certified technician.
SAFETY INFORMATION
Read these instructions carefully before using your regulator. Keep this
manual for future reference. Following the care and maintenance section at
the end of this booklet will help ensure reliable service.
WARNING

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WARNING
NITROX (EAN) USE — ALL MODELS
IMPORTANT NOTICE - READ BEFORE YOU USE THIS REGULATOR
Using Nitrox (EAN) requires special training and procedures. These
regulators have been assembled, cleaned and made compatible for
enriched air Nitrox (EAN) to a maximum 40% oxygen concentration
at a maximum pressure of 3500 psi (241.3 BAR). They do not require
additional cleaning or servicing.
IF THE REGULATOR BECOMES CONTAMINATED WITH DIRT, OILS,
OR GREASES FROM ANY SOURCE, HAVE THE REGULATOR RE-
CLEANED BEFORE USING IT WITH EAN. DO NOT USE SILICONE OR
HYDROCARBON GREASES IN OR AROUND REGULATORS BEING
USED FOR EAN NITROX OR OXYGEN MIXES. DO NOT UNDER ANY
CIRCUMSTANCES USE THESE REGULATORS WITH PURE OXYGEN OR
ANY GAS MIXTURE EXCEEDING 40% OXYGEN. FAILURE TO COMPLY
WITH THE ABOVE WARNINGS COULD CAUSE SERIOUS PERSONAL
INJURY OR DEATH FROM FIRE OR EXPLOSION.
NITROX (EAN) USE
NITROX USE

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WARNING
IMPORTANT NOTICE - READ BEFORE YOU USE THIS REGULATOR
Scuba diving is an recreational activity that involves a significant 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.
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
components. Scuba equipment that is not properly serviced might
malfunction during use, putting the diver at risk of serious personal
injury or death.

15
COLD WATER USE
WARNING
COLD WATER USE
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 temperature 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. The F8 and ONYX II include these freeze
resisting features, and are the best Zeagle models for Cold Water. 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.
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.

16
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 de-
vices 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, oer 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 exhala-
tion as is safely possible.
8. If the physical gear set-up allows, use two 1st stages and utilize one for
breathing air and the other one for inflation air. This will split the cooling
eect between the two regulators.

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COLD WATER USE
WARNING
1. The high-pressure outlets (HP Ports) 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
N-m) Excessive tightening won't help the seal and may damage the parts.
WARNING
Extreme cold water diving such as diving under ice requires specialized
training, certification and procedures. Do not attempt these activities
unless you are fully qualified and properly equipped to do so safely.

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FIRST STAGES – F8, ONYX II, ENVOY II
Compact Size: High performance diaphragm design provides stable interme-
diate pressures under any condition
Environmentally Sealed (F8 & ONYX II Only): Ambient chamber seal kit
reduces the possibility of freezing at low temperatures and seals water and
contaminants out of the first stage.
Enriched air compatible: The F8, ONYX II, and ENVOY II are nitrox ready from
the factory to 40% maximum oxygen concentration at 3500 PSI (241.3 BAR)
maximum pressure.
Two high pressure ports and ve low pressure ports: Allows virtually any
hose orientation.
Limited Lifetime Warranty (All first and second stage models).
Innovative Product Features

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PRODUCT FEATURES
Innovative Product Features — Second Stages & Octopus
Balanced Poppet: Aerodynamic, pneumatically balanced poppet provides
enhanced airflow and easy breathing, regardless of tank pressures.
Super Alloy Valve Spring: This proprietary, special spring alloy is over
10 times the cost of conventional stainless steels, but has superior ten-
sile strength and corrosion resistance compared to stainless steel. Its high
strength allows us to use fewer coils in the design for uninterrupted airflow
through the second stage.
Elliptical Exhaust Valve: Dramatically reduces exhalation eort at depth.
Over-size, high flow valve.
Dive/Pre-Dive Venturi Lever: Diver controlled venturi adjustment lever. This
lever controls the sensitivity of the regulator.
Comfort Mouthpiece: Specifically formulated dual hardness silicone mouth-
piece is comfortable and soft, yet extremely durable.

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F8 & ONYX II ONLY
Rapid Air Adjust Knob: One-turn manual override adjustment allows quick
increased resistance to flow for surf entries, octopus use, or other special
situations.
Cold Water Thermal Sink: High thermal conductivity sink helps transfer cold
out of the second stage to reduce freezing eect in cold water.
Zirconium Plated Valve Body (F8 ONLY): Zirconium plating provides added
protection against rust and corrosion
Seat Saving Orice (F8 ONLY): This new orifice design dramatically prolongs
the life of the rubber seat. Seat wear is the number one cause of regulator
leaks and performance degradation over time. The only adjustable dynamic
orifice (pat. #5,803,073) is pressure energized and only contacts the rubber
seat when the regulator is being used. The orifice is constructed of corrosion
resistant stainless steel.
Special Features