
STANDARD LOW PRESSURE REGULATOR
AC-R-P250
INSTRUCTION MANUAL
The AC-R-P250 can be used in all industrial indoor
locations where a pressure reduction is required.
WARNING
CCI Thermal Technologies Inc. equipment
must be installed, operated, and maintained in
accordance with, federal, state, provincial and
local codes. The installation must comply with
CSA, regulators and NFPA No. 54 &
No. 58 standards.
Only personnel trained in the proper
procedures, codes, standards and regulations
of the liquid propane gas and natural gas
industry should install and service this
equipment. Failure to follow these instructions
or to properly install and maintain this
equipment can result in an explosion and/or
re causing property damage, personal injury
or death.
WARNING: Improper installation, adjustment,
alteration, excessive vibration, service or maintenance
can cause property damage, injury or death. Read the
installation, operating and maintenance instructions
thoroughly before installation or servicing this equipment.
Figure 2
P.E.D. CATEGORY
This product may be used as a safety accessory
with pressure equipment in the following Pressure
Equipment Directive (P.E.D.) 97/23/EC categories. It
may also be used outside of the Pressure Equipment
Directive using sound engineering practice (SEP)
per below.
PRODUCT SIZE CATEGORIES FLUID TYPE
DN 6 (1/4”) SEP 1
PRODUCT DESCRIPTION
The AC-R-P250 is used to regulate the pressure
from 250 psig (1.7 MPa) to an adjustable low pressure
(inches of water column).
The regulator’s vent (or vent assembly or vent
tube), must remain unobstructed at all times.
Close the supply valve immediately if gas can be
smelled, appliance pilot lights fail to stay on or
appear higher than usual, or any other abnormal
situation occurs.
INTRODUCTION
Scope of the Manual
This instruction manual covers installation for the
following low-pressure regulator: AC-R-P250.
Figure 1
Vent
Inlet
Outlet
SPECIFICATIONS
Maximum Allowable Inlet Pressure
250 psig (1.7 MPa)
Outlet Pressure Standard Setpoints Available
11” w.c.
4.5” w.c.
Body Sizes and End Connection Style
Inlet: 1/4” NPT
Outlet: 3/8” NPT
Temperature Capabilities
-40°F to 130°F (-40°C to 55°C)
Vent Size
1/8” NPT
5918 Roper Road, Edmonton, Alberta, Canada T6B 3E1
Telephone: (780) 466-3178 Fax: (780) 468-5904
E-mail: info@ccithermal.com www.ccithermal.com
®
C US
Head Ofce & Factory:
Toll Free: 1-800-661-8529
11815.Rev.3.01 Date of Issue: January 2013

WARNING
INSTALLATION
Only qualied personnel should install a regulator.
Regulators should be installed, operated, and
maintained in accordance with applicable codes
and regulations, and CCI Thermal Technologies
instructions.
ADJUSTMENT
Each regulator’s outlet pressure is factory-set. If it
becomes necessary to increase outlet pressure, remove
the closing cap, Figure 1, and turn the adjusting screw
clockwise. Turn the adjusting screw counterclockwise
to decrease the outlet pressure. A pressure gauge is
needed to determine the regulator’s outlet setting after
adjustment. Always replace the closing cap
after adjustment.
If the regulator vents uid or a leak develops
in the system, it indicates that replacement is
required. Failure to take the regulator out of service
immediately may create a hazardous condition.
Personal injury, equipment damage, or leakage due
to escaping uid or bursting of pressure-containing
parts may result if this regulator is overpressured or
is installed where service conditions could exceed
the limits given in the Specications section, or
where conditions exceed any ratings or the adjacent
piping or piping connections.
To avoid such injury or damage, provide pressurerelieving or pressure-limiting devices (as required
by the appropriate code, regulation, or standard) to
prevent service conditions from exceeding limits.
Additionally, physical damage to the regulator could
result in personal injury and property damage due
to escaping uid. To avoid such injury and damage,
install the regulator in a safe location.
Clean out all pipelines before installation of the regulator
and check to be sure the regulator has not been
damaged or has collected foreign material during
shipping. For NPT bodies, apply pipe compound to the
male pipe threads. Install the regulator in any position
desired, unless otherwise specied, but be sure ow
through the body is in the direction indicated by the arrow
on the body.
OVERPRESSURE
PROTECTION
The recommended pressure limitations are stamped on
the regulator nameplate. Some type of overpressure
protection is needed if the actual inlet pressure
exceeds the maximum operating outlet pressure rating.
Overpressure protection should also be provided if the
regulator inlet pressure is greater than the safe working
pressure of the downstream equipment.
Regulator operation below the maximum pressure
limitations does not preclude the possibility of damage
from external sources or debris in the line. The regulator
should be inspected for damage after any
overpressure condition.
STARTUP
The regulator is factory set at approximately the midpoint
of the spring range or the pressure requested, so an
initial adjustment may be required to give the desired
results. With proper installation completed and relief
valves properly adjusted, slowly open the upstream and
downstream shutoff valves.
Note
It is important that the regulator be installed so
that the vent hold in the spring case is
unobstructed at all times.
Printed In Canada

5918 Roper Road, Edmonton, Alberta, Canada T6B 3E1
Phone: (780) 466-3178 Fax: (780) 468-5904
PLEASE ADHERE TO INSTRUCTIONS PUBLISHED IN THIS MANUAL.
Failure to do so may be dangerous and may void certain provisions of your warranty.
For further assistance, please call:
24 Hr. Hotline: 1-800-661-8529
(U.S.A. and Canada)
Please have model and serial numbers available before calling.
WARRANTY: Under normal use the Company
warrants to the purchaser that defects in material or
workmanship will be repaired or replaced
without charge for a period of 18 months from
date of shipment, or 12 months from the start date of
product was purchased for authorized repair or
replacement within the terms of this warranty.
Subject to State or Provincial law to the contrary, the
Company will not be responsible for any expense for
installation, removal from service, transportation, or
damages of any type whatsoever, including damages
arising from lack of use, business interruptions, or
incidental or consequential damages.
The Company cannot anticipate or control the
conditions of product usage and therefore
accepts no responsibility for the safe application and
suitability of its products when used alone or in
combination with other products. Tests for the safe
application and suitability of the products are the sole
responsibility of the user.
This warranty will be void if, in the judgment of the
Company, the damage, failure or defect is the result of:
• vibration, radiation, erosion, corrosion, process
contamination, abnormal process conditions,
temperature and pressures, unusual surges or
pulsation, fouling, ordinary wear and tear, lack of
maintenance, incorrectly applied utilities such as
voltage, air, gas, water, and others or any
combination of the aforementioned causes not
• any act or omission by the Purchaser, its agents,
servants or independent contractors which for
greater certainty, but not so as to limit the generality
of the foregoing, includes physical, chemical or
mechanical abuse, accident, improper
installation of the product, improper storage and
handling of the product, improper application or the
misalignment of parts.
manufacturing defects apparent within 30 days from
the date of installation.
The Company neither assumes nor
authorizes any person to assume for it any other
obligation or liability in connection with the product(s).
The Purchaser agrees that all warranty work required
after the initial commissioning of the product will be
provided only if the Company has been paid by the
Purchaser in full accordance with the terms and
conditions of the contract.
The Purchaser agrees that the Company makes
no warranty or guarantee, express, implied or
statutory, (INCLUDING ANY WARRANTY OF
MERCHANTABILITY OR WARRANTY OF FITNESS
FOR A PARTICULAR PURPOSE) written or oral, of
the Article or incidental labour, except as is expressed
or contained in the agreement herein.
LIABILITY: Technical data contained in the catalog or
on the website is subject to change without notice. The
Company reserves the right to make dimensional and
other design changes as required. The Purchaser
acknowledges the Company shall not be obligated
to modify those articles manufactured before the
formulation of the changes in design or improvements
of the products by the Company.
The Company shall not be liable to compensate or
indemnify the Purchaser, end user or any other party
against any actions, claims, liabilities, injury, loss, loss
of use, loss of business, damages, indirect or conse-
es (including legal expenses), costs, obligations and
causes of action of any kind arising wholly or partly
from negligence or omission of the user or the misuse, incorrect application, unsafe application, incorrect storage and handling, incorrect installation, lack
of maintenance, improper maintenance or improper
operation of products furnished by the Company.
Edmonton
1-800-661-8529
(780) 466-3178
F 780-468-5904
Oakville
1-800-410-3131
(905) 829-4422
F 905-829-4430
Orillia
1-877-325-3473
(705) 325-3473
F 705-325-2106
Greensburg
1-800-473-2402
(812) 663-4141
F 812-663-4202
Houston
1-855-219-2101
(281) 506-2310
F 281-506-2316
Denver
1-855-244-3128
(303) 979-7339
F 303-979-7350