Pentair AURORA 1081BP Series Operating instructions

NOTE! To the installer: Please make sure you provide this manual to the owner of the equipment or to the responsible
party who maintains the system.
1081BP SERIES
BRAZED PLATE HEAT EXCHANGERS
INSTRUCTION, INSTALLATION, MAINTENANCE AND REPAIR MANUAL
Part # A-03-342 | © 2012 Pentair Ltd. | 11/19/12

1081BP SERIES
ITEM A-03-342
DATED NOVEMBER 2012
SUPERCEDES MARCH 2011
2
IMPORTANT NOTE TO INSTALLER:
This manual contains important information about the
installation, operation and safe use of this product. This
information should be given to the owner/operator of
this equipment.
CALIFORNIA PROPOSITION 65 WARNING:
This product and related accessories
contain chemicals known to the State of California to cause
cancer, birth defects or other reproductive harm.
GENERAL INSTALLATION NOTES:
With extensive experience in hydronic heat exchanger design,
Aurora recommends a few key application tips when applying
“Brazed Plate Heat Exchangers” to your systems.
INSTALLATION. Fluid applications –Heat exchanger may
be installed in either a vertical or horizontal position.
If the application requires the heat exchanger to be mounted on
its back, it is possible in this orientation for the heat exchanger
to collect sediment and to be rendered useless in the system.
Warranty claims due to sediment deposits will not be covered
under warranty.
Steam applications –Unit should be installed in a vertical
position to ensure the condensate drains from the heat
exchanger.
MOUNTING. Small units may
be mounted by the base of the
unit or steel clamps. Larger
units should use a mounting
bracket (see illustration); if
there is a risk of vibration, use
an antivibration device. Do not
overtighten mounting nuts. Do
not braze or weld mounting
bracket to heat exchanger.
SAFETY. Each side of the heat exchanger should be properly
protected from overpressurization through the use of an
appropriate safety relief device.
PIPING INSTALLATION. Heat exchanger should be piped in
counterflow.
Thread connections –Use Teflon®tape or other sealant on
male threaded part of connection to prevent leakage. Always
use two wrenches when installing piping to heat exchanger
connections to prevent over-torque stress and damage when
tightening.
Welding –Should be done only to a supplied butt weld or
socket weld connector. Prepare the edge of the piping with an
appropriate bevel. DO NOT OVERHEAT; purge unit with
nitrogen.
Water strainer –A water strainer should be installed in the
water inlet circuit to protect the heat exchanger from partial
or complete blockage with a 16 – 20 mesh minimum; 20 – 40
mesh is a better choice.
WATER QUALITY. The water media pH value should be
maintained at 7.4 (not less than 7.0 and no higher than 8.0) for
proper heat exchanger life expectancy. For pH values outside
this range, the Aurora APSMO series can tolerate a pH value
as low as 2.0.
Highly chlorinated water (pools and spas), ground water with
high sulfur content or sulfuric acid, and low pH, should use the
Aurora APSMO series. The standard series of heat exchangers,
copper braze, will experience gradual copper erosion and
premature failure of the heat exchanger.

1081BP SERIES
ITEM A-03-342
DATED NOVEMBER 2012
SUPERCEDES MARCH 2011
3
GLYCOLS. Ethylene or propylene based glycols –May be
used with brazed plate heat exchangers. The glycol should be
tested annually, or more often if required, to be sure the fluid
still retains the desired properties and protection. No permanent
connection should be made between a system containing
ethylene glycol and a drinking water supply.
Automotive glycols –Not recommended; usage may result in
reduced thermal performance of the heat exchanger.
FREEZE PROTECTION. It is not recommended to cool water
below 33°F (0.6°C) due to the tolerances of the measuring
equipment. For freeze protection it is recommended to use
thermostats and/or temperature controls in the piping.
Low pressure Cutout –In water chiller applications, in
addition to the flow switch, the low pressure cutout on the
refrigerant side is the most important freeze protection control.
To prevent freeze damage and to protect the heat exchanger
and compressor, the low pressure cutout should be set no lower
than 28°F (–2°C), based on evaporator refrigerant pressure at
this temperature. If part-load or transient loads cause the chiller
to cycle off, use a resetting low pressure control with anti-
cycling timer or install a hot gas bypass control to maintain the
appropriate suction pressure at low loads.
NOTE: Use of a leaving chilled water sensor will not provide
adequate freeze protection.
SWIMMING POOLS AND SPAS. The use of chlorinating
devices requires that all chemical feeds MUST be downstream
from the heat exchanger, and a check valve should be installed
to prevent backflow of chemicals into the heat exchanger
whenever the pump is not in operation.
CLEANING. In some applications the heat exchanger may be
subjected to severe fluid conditions, including high temperature
and/or hard water, causing accelerated scaling and corrosion
rates and reducing the performance of the heat exchanger.
Because of these factors, it is important to establish regular
cleaning schedules. Chemical cleaning is a very simple and
effective process for removal of fatty and calcium deposits
and other forms of scaling from brazed plate heat exchangers.
Proper maintenance schedules will result in continued excellent
performance and extended life.
Cleaning solutions, such as a commercially available descaler,
can be obtained from your local wholesaler. Make sure the
cleaning solution is applicable for stainless steel and copper or
nickel, depending on the model, and that the manufacturer’s
directions are followed. A 5% solution of phosphoric acid or
oxalic acid may be considered.
Do not heat the cleaning solution when back flushing through
the heat exchanger. Flush the heat exchanger with fresh water
after cleaning.

WARRANTY
Seller warrants equipment (and its component parts) of its own manufacture against defects in materials and workmanship under normal use
and service for one (1) year from the date of installation or start-up, or for eighteen (18) months after the date of shipment, whichever occurs
first. Seller does not warrant accessories or components that are not manufactured by Seller; however, to the extent possible, Seller agrees to
assign to Buyer its rights under the original manufacturer's warranty, without recourse to Seller. Buyer must give Seller notice in writing of
any alleged defect covered by this warranty (together with all identifying details, including the serial number, the type of equipment, and the
date of purchase) within thirty (30) days of the discovery of such defect during the warranty period. No claim made more than 30 days after
the expiration of the warranty period shall be valid. Guarantees of performance and warranties are based on the use of original equipment
manufactured (OEM) replacement parts. Seller assumes no responsibility or liability if alterations, non-authorized design modifications
and/or non-OEM replacement parts are incorporated If requested by Seller, any equipment (or its component parts) must be promptly
returned to Seller prior to any attempted repair, or sent to an authorized service station designated by Seller, and Buyer shall prepay all
shipping expenses. Seller shall not be liable for any loss or damage to goods in transit, nor will any warranty claim be valid unless the
returned goods are received intact and undamaged as a result of shipment. Repaired or replaced material returned to customer will be
shipped F.O.B., Seller's factory. Seller will not give Buyer credit for parts or equipment returned to Seller, and will not accept delivery of
any such parts or equipment, unless Buyer has obtained Seller's approval in writing. The warranty extends to repaired or replaced parts of
Seller's manufacture for ninety (90) days or for the remainder of the original warranty period applicable to the equipment or parts being
repaired or replaced, whichever is greater. This warranty applies to the repaired or replaced part and is not extended to the product or any
other component of the product being repaired. Repair parts of its own manufacture sold after the original warranty period are warranted for
a period of one (1) year from shipment against defects in materials and workmanship under normal use and service. This warranty applies to
the replacement part only and is not extended to the product or any other component of the product being repaired. Seller may substitute
new equipment or improve part(s) of any equipment judged defective without further liability. All repairs or services performed by Seller,
which are not covered by this warranty, will be charged in accordance with Seller's standard prices then in effect.
THIS WARRANTY IS THE SOLE WARRANTY OF SELLER AND SELLER HEREBY EXPRESSLY DISCLAIMS AND BUYER
WAIVES ALL OTHER WARRANTIES EXPRESSED, IMPLIED IN LAW OR IMPLIED IN FACT, INCLUDING ANY WARRANTIES
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Seller's sole obligation under this warranty shall be, at its
option, to repair or replace any equipment (or its component parts) which has a defect covered by this warranty, or to refund the purchase
price of such equipment or part. Under the terms of this warranty, Seller shall not be liable for (a) consequential, collateral, special or
liquidated losses or damages; (b) equipment conditions caused by normal wear and tear, abnormal conditions of use, accident, neglect, or
misuse of said equipment; (c) the expense of, and loss or damage caused by, repairs or alterations made by anyone other than the Seller; (d)
damage caused by abrasive materials, chemicals, scale deposits, corrosion, lightning, improper voltage, mishandling, or other similar
conditions; (e) any loss, damage, or expense relating to or resulting from installation, removal or reinstallation of equipment; (f) any labor
costs or charges incurred in repairing or replacing defective equipment or parts, including the cost of reinstalling parts that are repaired or
replaced by Seller; (g) any expense of shipment of equipment or repaired or replacement parts; or (h) any other loss, damage or expense of
any nature.
The above warranty shall not apply to any equipment which may be separately covered by any alternate or special warranties.
PERFORMANCE: In the absence of Certified Pump Performance Tests, equipment performance is not warranted or guaranteed.
Performance curves and other information submitted to Buyer are approximate and no warranty or guarantee shall be deemed to arise as a
result of such submittal. All testing shall be done in accordance with Seller's standard policy under Hydraulic Institute procedures.
LIABILITY LIMITATIONS: Under no circumstances shall the Seller have any liability under the Order or otherwise for liquidated
damages or for collateral, consequential or special damages or for loss of profits, or for actual losses or for loss of production or progress of
construction, regardless of the cause of such damages or losses. In any event, Seller's aggregate total liability under the Order or otherwise
shall not exceed the contract price.
ACTS OF GOD: Seller shall in no event be liable for delays in delivery of the equipment or other failures to perform caused by fires, acts of
God, strikes, labor difficulties, acts of governmental or military authorities, delays in transportation or procuring materials, or causes of any
kind beyond Seller's control.
COMPLIANCE WITH LAW: Seller agrees to comply with all United States laws and regulations applicable to the manufacturing of the
subject equipment. Such compliance shall include: The Fair Labor Standards Acts of 1938, as amended; Equal Employment Opportunity
clauses of Executive Order 11246, as amended; Occupational Safety and Health Act of 1970 and the standards promulgated thereunder, if
applicable. Since compliance with the various Federal, State, and Local laws and regulations concerning occupational health and safety,
pollution or local codes are affected by the use, installation and operation of the equipment and other matters over which Seller has no
control, Seller assumes no responsibility for compliance with those laws and regulations, whether by way of indemnity, warranty, or
otherwise. It is incumbent upon the Buyer to specify equipment which complies with local codes and ordinances.
800 Airport Road
North Aurora, Illinois 60542
630-859-7000
www.aurorapump.com