Bosch HUMBSBP-12H6--A Manual

Installation and Maintenance Manual IAQ Series
HUMBSBP-12H6--A
HUMBLBP-17H6--A
6 720 220 343 Revised 07-12
FLOW-THROUGH BYPASS HUMIDIFIER
FOR INSTALLATION ON A VERTICAL PLENUM SURFACE
OF ANY AIR HANDLER

6 720 220 343 Subject to change without prior notice Revised 07-12
TABLE OF CONTENTS
Installation....................................................................................... 3
Additional Materials That May Be Necessary ................................ 3
Humidity Control Humidistat HUMB-TST-A-A.................................... 5
Safety .............................................................................................. 5
Application....................................................................................... 5
Operation ........................................................................................ 5
Installation Instructions—Precautions .............................................. 5
Wall Mount Instructions—Humidistat/Dehumidistat Versions........... 5
Duct Mounting on the Return Air—Wall Base..................................... 6
Duct Mounting on the Return Air—Duct Base.................................... 6
HUM-TST-H-A Calibration Instructions ............................................. 7
Wiring .............................................................................................. 7
Checkout ......................................................................................... 7
Settings ........................................................................................... 7
Care and Maintenance ..................................................................... 7
How the Humidier Works ............................................................... 8
Humidier Packaged Component Accessories ................................. 8
Contact your local Bosch Dealer or Installing Contractor
for product support...................................................................... 8
Heat Pump Wiring Diagram .............................................................. 9
Alternate Electrical & Control Connections.................................... 10
Parts List for Humidier ................................................................. 11
Bosch Humidier Specications .................................................... 11
Humidier Dimensional Drawings .................................................. 12
Troubleshooting............................................................................. 13
Product Limited Warranty .............................................................. 14
2 IAQ Series Table of Contents

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Installation IAQ Series 3
Caution
The installer should be an experienced service
technician. Disconnect electrical power before
beginning installation. Do not install where
temperatures fall below 32 degrees F or where
plenum temperatures exceed 150 degrees F.
When wiring into a multi-speed blower circuit
see Step 6.
INSTALLATION
The humidier may be mounted with the 6” outlet to
the right or left side. The humidier may be mounted
on the warm or return air plenum with equal
efciency. See Typical Installations.
Additional Materials That May Be
Necessary
1. 1/4” diameter plastic supply tubing or 1/4”
copper supply tubing for hot water applications
2. 6” diameter galvanized by-pass pipe
3. Electrical wire and wire nuts
4. Current sensing relay
5. #8 self piercing sheet metal screws
6. Accurate Humidity measuring device.
STEP 1: Carefully unpack the Bosch Humidier and
verify that all contents are present and undamaged.
Remove the cover using the the release tabs on the
top and bottom, exposing the humidier evaporator
pad. Remove the evaporator pad, drain pan, and
distributor trough ( all of this should come out as
one piece).
Step 2: The BOSCH humidier may be installed on
either the supply or return plenum of a forced air
handling system. Select a location for the humidier
that allows for service and maintenance. Cut out a
rectangle. Extend horizontal center line of cut out to
the adjacent plenum. Cut a 6” hole 10” to 15” from
side of humidier, on cabinet center line, using
connecting collar as guide. The bypass is reversible
and can be mounted on the right or left side of the
humidier. Use provided template provided in the
humidier package. See Figure 1.
Figure #1
Step 3: Humidier is self retaining. Slide top side in
rst, then slide chassis down. Level chassis and
install center screws. If by-pass duct installs to
opposite side of chassis, bend clip on chassis,
remove side discharge, and reinstall discharge to
opposite side of chassis. Install remaining four
corner screws. See Figure 2.
Figure #2
Step 4: Connect by-pass duct to collar and
humidier cabinet. Using holes at top and bottom of
side panel discharge, pierce 2 self tapping screws
through by-pass pipe. See Figure 3.

6 720 220 343 Subject to change without prior notice Revised 07-12
Figure #3
Step 5: Mount the self tapping saddle valve or code
valve on either a cold or a hot water pipe. A side or
top mount is best to avoid clogging from pipe
sediment. Connect 1/4” O.D. tubing to the saddle
valve. Copper tubing requires a brass compression
nut and brass sleeve. Plastic tubing requires a brass
insert inside the tubing, a plastic sleeve on the
outside with a brass compression nut. See Figure 4.
Caution
Do not use plastic tubing on hot water or in
contact with any hot plenum surface or duct.
Installation of this saddle valve must meet or
exceed local codes and ordinances.
1
2
2
3
4
5
COPPER
TUBING
PLASTIC
TUBING
Figure #4
Step 6: Connect 1/4” water supply tube to brass
lter at inlet of solenoid. See Figure 5.
Caution
Do not use plastic tubing on hot water or in
contact with any hot plenum surface or duct. If
using plastic tubing, use tube support and plastic
compression sleeve.
Figure #5
STEP 7: Replace the evaporator pad with the drain
pan and distributor trough attached. Ensure that the
drain pan is on the bottom and that the spout aligns
with the outlet in the cabinet. The evaporator pad
assembly can only be installed in one direction.
Ensure that the notch at the top in the distributor
trough goes in rst. Do not force the evaporator pad
assembly. If it does not go in easily, it might be
backwards.
STEP 8: Replace the humidier cover, ensuring that
both tabs snap into place.
Step 9: Turn damper knob to the “winter” (open)
position. Turn on water supply and check operation
of humidier. Set humidistat to a demand setting.
(See Humidistat section for installation and
settings) With the air handler off, the solenoid valve
should be closed. Start the air handler, the solenoid
valve should open when the blower motor is
energized. Check ow of water through distributor
trough and evaporator pad. The standard yellow
orice will supply approximately 3.5 GPH of water at
a line water pressure of 60 psi. For low water
pressures (20-40 psi) a larger orange orice (P/N
7738002989) is available to provide the same ow.
Leave humidistat set at the recommended setting.
Connect drain hose to 1/2” spout on humidier
cabinet using hose clamp. Run 1/2” hose to suitable
drain such as oor drain, sewer or laundry sink. Be
sure hose has continuous slope and is not kinked at
any point.
4 IAQ Series Installation

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mounting on the return air duct. Use contacts C
and NO for humidistat operation. Use contacts C
and NC for dehumidistat operation.
RANGE: 10% to 85% RH ELECTRICAL RATING: 30
VAC / 60 VA
OPERATION
Set the control knob to the desired humidity
setting. The recommended setting for optimum
whole-house humidication is 30% to 50%. The
vertical position on the knob is approximately 42%
RH.
Setting the humidistat above or below the
recommended settings may not provide
satisfactory results for your home. Refer to the
Care and Maintenance section of this manual for
recommended settings.
INSTALLATION INSTRUCTIONS—
PRECAUTIONS
The installer must be a qualied technician.
Disconnect electrical power before beginning
installation. Do not install the humidistat on the
warm air duct. Conduct a thorough checkout
before leaving the installation.
WALL MOUNT INSTRUCTIONS—
HUMIDISTAT/DEHUMIDISTAT
VERSIONS
1. Choose a location for the HUMB-TST—H—A
about ve feet above the oor on an inside wall
with average room temperature and relative
humidity conditions.
2. Drill a small hole in the wall and run low voltage
wiring to the location chosen. Pull about 6” of
wire through the hole. Use the entire mounting
gasket (both inside and outside portions) to
seal the wall opening or use foam tape to
prevent drafts from affecting the humidistat
operation. See Figure 6.
3. Squeeze the top and bottom of the base to
release the face of the humidistat.
4. Mount the base horizontally over the wires.
Attach directly to the wall, using the two screws
provided in the slotted holes.
HUMIDITY CONTROL
HUMIDISTAT HUMB-TST—A—A
Caution
INSTALLER: Leave owner’s manual with home
owner.
SAFETY
Caution
Improper electrical wiring can result in re or
loss
of humidity control. Disconnect electrical
power before installing and servicing. Failure to
disconnect electrical power may result in injury or
death. All local building and electrical codes must
be followed. The humidistat must be installed by
a qualied Technician. Failure to properly install
the humidistat may result in property damage or
personal injury.
Homeowners must read instructions and
understand the operation of the humidistat and the
humidier(s) it controls.
Improper operation can result in over or under
humidication. Over humidication can result in
condensation, structural damage and mold.
Condensation within a building’s structure can
cause loss of structural strength. Condensation can
also enable mold and mildew growth resulting in
personal injury and damage to building structure
and contents.
APPLICATION
The humidistat provides low voltage control of
humidiers installed in central heating systems.
The humidistat control has a DPST switch and is
designed for wall mounting in the living area, or
Humidity Control Humidistat HUMB-TST-A-A IAQ Series 5

6 720 220 343 Subject to change without prior notice Revised 07-12
5. Connect the wires to the terminals on the
control assembly as shown in wiring diagrams.
Replace face plate.
DUCT MOUNTING ON THE RETURN
AIR—WALL BASE
Humidistat/Dehumidistat versions (optional)
Caution
Do not install the humidistat on the warm air duct
or within 48” of UV light.
Caution
Wall mount option requires Bosch
P/N 7738002911
1. Locate the humidistat at least 24" upstream of
the humidier or bypass on the return air duct.
Avoid areas of direct radiation like secondary
heat exchanger in the fan compartment.
2. Cut a square in the duct 2-1/4" wide and 1-3/4"
tall. Remove the inner portion of the mounting
gasket and discard. Use the outer portion to
seal between the plastic base and the duct. Line
up the base with the cut out and accurately mark
the holes thru the plastic duct mount plate. See
Figure 6.
USE BOTH WITH
WALL MOUNTING
USE WITH DUCT
MOUNTING ONLY
USE OUTSIDE
PORTION ONLY
WITH DUCT
MOUNTING
GASKET PLACEMENT
FIG. 2
WALL MOUNT BASE
(CAN MOUNT ON DUCT
WITH GASKETS SHOWN)
Figure #6 - Wall Mount Version
3. Remove the humidistat and drill four 3/32"
mounting holes.
4. Place the outer portion of the mounting gaskets
on the plastic base and mount the base with four
screws. Low voltage wire may enter the
humidistat under the gasket.
5. Connect wires to terminals on the control
assembly as shown in wiring diagrams. Replace
the face plate.
DUCT MOUNTING ON THE RETURN
AIR—DUCT BASE
Humidistat/dehumidistat versions (recommended)
Caution
Do not install the humidistat on the warm air duct
or within 48” of UV light.
1. Locate the humidistat at least 24" upstream of
the humidier or bypass on the return air duct.
Avoid areas of direct radiation like secondary
heat exchanger in the fan compartment.
2. Remove face by inserting screwdriver into the
pry slot and twisting. See Figure 7.
3. Use the plastic duct mount plate as a template.
Accurately mark and drill the (4) 3/23” mounting
holes and cut away the 4-1/4” x 2-1/2” section of
the duct mount plate.
4. Place duct mount base gasket on the humidistat
base and mount the base with four screws. Low
voltage wire may enter the humidistat under the
gasket. See Figure 7.
DUCT MOUNT
VERSION
FIG. 1
DUCT MOUNT BASE
DUCT MOUNT BASE
GASKET
SCREWDRIVER PRY SLOT
Figure #7 - Duct Mount Version
5. Connect wires to terminals on the control
assembly as shown in the wiring diagrams.
Replace face plate.
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HUMB-TST—H—A CALIBRATION
INSTRUCTIONS
Caution
Accurate humidity gauge required
1. Use an accurate humidity gauge to determine the
current relative humidity in the room where the
humidistat is located. This relative humidity will
be used in step 5.
2. Remove the face plate from the housing.
3. Turn the knob on the HUMB-TST—H—A faceplate
to the “on” position.
4. Very slowly, turn the knob clockwise until you
hear a “click” from the humidistat control and
leave the knob in this position.
5. Turn the ring (not the knob) so that the knob is
pointed directly at the current relative humidity
number determined in Step 1. To rotate the
outer ring, locate the locking tab on the backside
of the face plate. Carefully pry up the locking tab
and rotate the outer ring until it matches up with
the humidity level determined in Step 1.
6. The humidistat is now calibrated to match your
humidity gauge.
WIRING
Disconnect electrical power before beginning
installation. 120 volts may cause injury or even
death.
Refer to the Heat Pump Wiring Diagram on page 10
for proper controller wiring.
All wiring should comply with local electrical
codes.
CHECKOUT
With the air handler in operation, turn humidistat to
“ON” position. Observe humidier operation.
SETTINGS
Caution
Do not set relative humidity too high during cold
weather. Over humidication can result in
condensation, structural damage and mold.
Condensation within a building’s structure can
cause loss of structural strength. Condensation
can also enable mold and mildew growth
resulting in personal injury and damage to
building structure and contents.
CARE AND MAINTENANCE
Your humidier is engineered to give helpful and
trouble-free humidication. For maximum
efciency and to ensure the safe and proper
operation of your humidier, the following cleaning
procedures should be carried out at the end of
each heating season:
If the humidier is being supplied with hard water,
maintenance will need to be more frequent than
once a year.
1. Turn off water supply and electrical power to
humidier.
2. Remove water cover, distributor trough,
evaporator pad and drain pan. Clean all mineral
deposits from the distributor trough, drain pan,
pad rails, and humidier cabinet. A solution of
1/2 vinegar & 1/2 water will help loosen mineral
deposits.
3. Replace humdier evaporator pad. Install
trough and drain pan. Replace cover. (Replace
evaporator pad yearly for peak performance
and to maintain reliable operation. Replacing
evaporator pad helps to ensure water travels
freely to drain connection.)
4. In heavy mineral areas or if the solenoid valve
fails to function disconnect the 1/4” water
supply line from the solenoid valve. Carefully
pull the strainer screen from the valve body.
Clean the mineral deposits from all parts. If the
orice is clogged, it may be opened by inserting
a small pin. Reinsert the lter into the orice
tting and screw the brass strainer body into
the solenoid valve.
5. Reconnect the 1/4” water line to the solenoid
valve if necessary. Turn on the water supply and
HUMB-TST—H—A Calibration Instructions IAQ Series 7

6 720 220 343 Subject to change without prior notice Revised 07-12
check all points for leakage. The operation of the
unit may be checked by starting the air handler.
The humidier operates only when the air
handler blower motor is energized. The
humidier is now ready for operation.
6. During the summer, turn off water supply and
electrical power to humidier. Close air damper.
Table 1
Outside Temperature Recommended Setting
-20°F -29°C 15%
-10°F -23°C 20%
0°F -18°C 25%
+10°F -12°C 30%
+20°F - 7°C 35%
+30°F - 1°C 40%
HOW THE HUMIDIFIER WORKS
The operating principle of the humidier is based on
the most efcient and economical means of
evaporating water to the air. The humidier uses
only 2.5 watts of electrical power during operation,
less than the smallest household light bulb. The heat
necessary for evaporating water is produced by the
air handler.
The water supply to the humidier is controlled by
the electric solenoid valve. The humidistat
connected in series with the solenoid provides low
voltage control of the humidier. The humidistat is
designed for wall mounting in the living area or
surface mounting on the return air duct.
ELECTRICAL RATING: 24 VAC / 60 Hz.
Water ows through a strainer, is metered through
an orice to provide the proper amount of water, and
is supplied to the evaporator pad by the distributor
trough. Approximately 200 CFM of air is by-passed
from the warm air plenum through the humidier
and returned to the cold air plenum. Moisture is
evaporated to the air passing through the evaporator
pad. Minerals are not blown into the air stream as
occurs in atomizing humidiers; they are left on the
evaporator pad where a high percentage is carried
off with the waste water. When the humidier is
installed and operating, no adjustments are
necessary other than setting the control knob on the
humidistat to the desired level of humidication.
Leave knob on the humidier in “WINTER” position.
To turn the humidier off, close water supply valve,
switch electrical power off and turn humidistat off. If
air handler is used for summer cooling or ventilating
set air damper on “SUMMER”.
Caution
Do not set relative humidity too high during cold
weather. Excessive humidity may cause
condensation on windows or in walls. Refer to
recommended settings as described in Table 1.
HUMIDIFIER PACKAGED COMPONENT
ACCESSORIES
Bosch HUM Series Includes:
Humidier Components:
Vapor Pad
Solenoid Assembly
Integral Bypass Damper Accessories:
Manual Humidstat
Saddle Valve
The humidier comes with a humidistat controller
setup for the duct mounted option. The wall base
(Bosch part: 7738002911) can be ordered for the
wall mount controller option. Contact your local
Bosch distributor to order this part.
CONTACT YOUR LOCAL BOSCH DEALER
OR INSTALLING CONTRACTOR FOR
PRODUCT SUPPORT.
Field Technical Support:
[phone]
Monday-Friday: 8 am - 5 pm EST
Bosch
601 N.W. 65th Ct.
Ft. Lauderdale, FL 33309
www.bosch-climate.us
8 IAQSeries HowtheHumidierWorks

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Primary Heat Pump Wiring Diagram IAQ Series 9
Primary Heat Pump Wiring Diagram

6 720 220 343 Subject to change without prior notice Revised 07-12
10 IAQ Series Alternate Electrical & Control Connections
Alternate Electrical & Control Connections
1
COMMON LEAD
FURNACE
C
HI
LO
CURRENT
SENSING
RELAY
MULTI
SPEED
BLOWER
MOTOR
(HOT)
C
115v.
60CY.
ON-OFF SWITCH
AC L
AC N
HUM
SNSR
24V. SOLENOID VALVE
24 V. TRANSFORMER
L1
CNO
(HOT)
L2
115v.
60CY.
ON-OFF SWITCH
AIR PRESSURE SWITCH
AC L
AC N
HUM
SNSR
24V. SOLENOID VALVE
24 V. TRANSFORMER
OUTDOOR TEMP. SENSOR
OUTDOOR TEMP. SENSOR
COMMON LEAD
FURNACE
C
HI
LO
CURRENT
SENSING
RELAY
MULTI
SPEED
BLOWER
MOTOR
(HOT)
C
115v.
60CY.
ON-OFF SWITCH
24V. SOLENOID VALVE
24V. SOLENOID VALVE
24 V. TRANSFORMER
L1
CNO (HOT)
L2
115v.
60CY.
ON-OFF SWITCH
PRESSURE SWITCH 24 V. TRANSFORMER
HUMIDISTAT
HUMIDISTAT
WIRE
JUMPER
WIRE
JUMPER
2
3
4
Manual Humidistat
1. To furnace control board 24 volts
2. To constant power using 24V transformer and pressure switch
3. To furnace control board 115 volts with 24V transformer
4. To constant power using 24V relay and current sensing relay

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PartsListforHumidier IAQSeries11
PartsListforHumidier
900-71 Badge
PARTS NOT SHOWN:
Saddle Valve: 7738002902
Water Supply Tubing Kit: 7738002916
Orange Orifice: 7738002989
Controller Wall Mount Housing: 7738002911
7738002897 24VAC Solenoid Valve 7738002898 Yellow Orifice
7738002899
Distributor Tube For SBP 12 Humidifier
7738002900
Distributor Tube For LBP 17 Humidifier
7738002903 Compression Nut
7738002904 Compression Sleeve (Brass)
7738002905 Compression Sleeve (Plastic)
7738002906 SBP 12 Gal. Replacement Pad
7738002907 LBP 17 Gal. Replacement Pad
7738002908 Strainer Screen
7738002909 Damper Knob
7738002910 Damper Disk
7738002912 LBP 17 Chasis
7738002923 SBP 12 Chasis
7738002913 LBP 17 Pad Rail
7738002926 SBP 12 Pad Rail
7738002914 Distributor Trough
7738002915 Drain Pan
7738002917 LBP 17 Side Panel
7738002924 SBP 12 Side Panel
7738002918 Nozzle
7738002919 LBP 17 Cover
7738002925 SBP 12 Cover
7738002920 Spout
7738002921 Brass Insert Tube
P102 Compression Sleeve (Brass)
P101 Compression Nut
Table 2: Bosch Humidier Specications
Expected Humidity Performance Coverage in Square Feet Based on Construction Type
Model Number Bosch Part Number GPD Loose
(0.75 AC/H)
Average
(0.50 AC/H)
Tight
(0.30 AC/H)
HUMBSBP-12H6--A 7738002895 12 800 sq. ft. 1,200 sq. ft. 2,000 sq. ft.
HUMBLBP-17H6--A 7738002896 17 1,115 sq. ft. 1,650 sq. ft. 2800 sq. ft.
Table 3: Humidier Performance Baseline Criteria
Outside Design Temp 0° F (-18° C)
Outside Design R.H. 70% R.H.
Inside Design Temp. 70° F (21° C)
Inside Design R.H. 30% R.H.
Air Changes/hour (AC/H) 0.30
Ceiling Height 8 ft
Air Handler Plenum Temp. 120° F (49° C)
Air Handler run time for calculating sq. ft. 8hr/1 day

6 720 220 343 Subject to change without prior notice Revised 07-12
12 IAQSeries HumidierDimensionalDrawings
HumidierDimensionalDrawings
Figure #6 – HUMBSBP-12H6--A Dimensional Drawing
Figure #7 – HUMBLBP-17H6--A Dimensional Drawing

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Troubleshooting IAQ Series 13
TROUBLESHOOTING
Problem Checks and Corrections
Humidier will not
operate
1. Set thermostat to operate air handler in heating mode. Operation may be
necessary for system power.
2. Humidity level in home may be higher than humidistat setting. Increase
humidity setting on humidistat.
3. Verify water supply is on.
4. Check for voltage at the solenoid valve. Voltage should be 24VAC. Bypass the
humidistat if necessary to isolate the solenoid valve circuit.
5. Verify wiring of humidier and humidistat.
Proper voltage present at
solenoid valve (24 VAC)
but no water ow
1. Verify water supply is on.
2. Verify metering orice is not obstructed. Very hard water with high mineral
content may restrict the metering orice in as little as one heating season.
Replace metering orice if restricted.
Humidier runs without
air handler operation or
humidier never shuts off
Verify humidier and humidistat wiring. Humidier should operate with air handler
in heating mode.
Too much humidity
in home and/or
condensation on windows
Reduce the setting on the humidistat. Refer to CARE AND MAINTENANCE section
of this manual to estimate a humidity setting for the home based on outside
temperature.
No humidier operation in
“ON” position
1. Set thermostat to operate air handler in heating mode. Operation may be
necessary for system power.
2. Check voltage at humidier control terminals. Voltage should be 20-30 VAC.
3. Inspect humidier wiring. Refer to wiring diagrams.
DO NOT LEAVE IN “ON” POSITION, AS OVER HUMIDIFICATION MAY OCCUR.
Humidier operation in
“ON” position only
1. Humidity level in the home is higher than knob setting. Humidier control will
not operate the humidier until humidity level is reduced.
Humidier operation
continuous
1. When the humidity in the home is less than the knob setting, the control will
operate humidier until the humidity is higher. Reduce knob setting.
2. Use “ON” position. Verify that the humidier operates.
3. Remove wires from control terminals. If humidier continues to operate, check
solenoid valve.
Humidier turns on and
off repeatedly
1. Check voltage at humidier control terminals. Voltage should be 20-30 VAC.
2. If mounted on return air duct, make sure humidier control is at least 24”
upstream of humidiers air discharge.
Where can I purchase
replacement parts?
Replacement parts can purchased through your authorized Bosch Distributor or
visit www.bosch-climate.us or more information.

6 720 220 343 Subject to change without prior notice Revised 07-12
14 IAQ Series Product Limited Warranty
PRODUCT LIMITED WARRANTY
Models Covered
This limited warranty is provided by FHP
Manufacturing Company (“FHP”) and covers Bosch
Humidier (hereinafter referred to as “Product”).
This warranty is provided to the original purchaser of
the Product as long as the Product remains installed
at its original place of installation.
WARRANTY COVERAGE
Limited Warranty
FHP warrants that the Product at the time of
shipment by FHP shall remain free from defects in
workmanship and materials for the shorter of ve
(5) years from proof of certicate of occupancy date,
ve (5) years from proof of certied start up date or
six (6) years from date of manufacture, provided it is
installed and properly maintained by a qualied and
trained HVAC contractor and the other conditions of
this warranty are met. If FHP determines that the
Product or any part of the Product has a defect in
workmanship or materials, FHP, at its option, will
repair or replace the defective part.
HumidierPad
FHP warrants that the Product shall remain free
from defects in workmanship and materials for the
shorter of one (1) year from date of installation or
eighteen (18) months from date of manufacture,
provided it is installed and properly maintained by a
qualied and trained HVAC contractor and the other
conditions of this warranty are met. If FHP
determines that the Product has a defect in
workmanship or materials, FHP, at its option, will
repair or replace the defective part.
ITEMS NOT COVERED
This limited warranty does not cover the following
circumstances:
1. Components or parts not provided by FHP.
2. Components or parts on which the tags or
nameplates have been removed, altered or
defaced.
3. Scratches in or discoloration of nishes.
4. Serviceable items and normal maintenance as
required per the Installation and Maintenance
Manual.
5. The workmanship of any installer. FHP disclaims
and does not assume any liability of any nature
for unsatisfactory performance caused by
improper installation, repair or maintenance.
6. Any labor or material costs for removal,
reinstallation, repair and replacement of the
defective component or part.
7. Electricity or fuel costs, or any increases or
unrealized savings in same, for any reason
whatsoever.
8. Damage caused by excessive temperatures or
pressures, fuel or gas explosion, electrochemical
reaction, water and air impurities, electrical
failures, use during construction, ooding or
acts of God.
9. Any damage or failure resulting from the
introduction of harmful chemicals, caustic uids,
or liquids detrimental to any unit component,
including but not limited to improperly applied
or maintained heat transfer uids or chlorinated
pool or spa water
10. Any damage or failure resulting from improper
unit sizing.
11. Shipping charges, delivery expenses or
administrative fees incurred by the purchaser in
repairing or replacing the Product.
CONDITIONS OF WARRANTY
The warranty herein is void under the following
circumstances:
1. Failure or malfunction resulting from improper
or negligent operation, accident, abuse,
freezing, electrical imbalance characteristics,
misuse, unauthorized alteration, incorrect
electrical supply, electrical surges, or improper
installation, repair or maintenance. See the
Installation and Maintenance Manual for
installation and maintenance information.

6 720 220 343
Revised 07-12 Subject to change without prior notice
Product Limited Warranty IAQ Series 15
2. Failure or malfunction resulting from any
conditions within the structure, including mold
and/or mildew and/or any chemical or toxin
secreted there from or damage resulting from
mold, fungus or bacteria.
3. Failure or malfunction resulting from a
contaminated or corrosive air or liquid supply,
the addition of unapproved chemicals, operation
at abnormal temperatures, pressures or ow
rates, opening of the refrigerant circuit by
unqualied personnel or any attachment,
accessory or component not authorized and
approved by FHP. See the Installation and
Maintenance Manual for installation and
maintenance information.
4. Failure or malfunction due to misapplication or
faulty building design or construction, including
inadequate refrigerant levels, condensate drain,
duct work design or installation.
5. Product on which payment to FHP is or has been
in default.
6. Work performed without prior authorization or
approval and without authorization/requisition
number and without proper documentation
verifying compliance with above terms.
LIMITED WARRANTY
OTHER THAN THE OBLIGATIONS OF FHP
EXPRESSLY SET FORTH HERIN, FHP DISCLAIMS
ALL WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO ANY IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE. FHP’S SOLE
OBLIGATION WITH RESPECT TO THE PRODUCT
AND PURCHASER’S EXCLUSIVE REMEDIES ARE
SET FORTH IN THE FOREGOING LIMITED
WARRANTY. FHP SHALL NOT BE LIABLE FOR ANY
INDIRECT, PUNITIVE, INCIDENTAL, SPECIAL,
CONSEQUENTIAL OR SIMILAR DAMAGES
INCLUDING, WITHOUT LIMIITATION, INJURY OR
DAMAGE TO PERSONS OR PROPERTY OR
DAMAGES FOR LOSS OF USE, LOST PROFITS,
INCONVENIENCE OR LOSS OF TIME.
Caution
Some states do not allow the exclusion of
limitation of damages, or limitations on how
long an implied warranty lasts, so the above
limitations and exclusions may not apply to you.
WARRANTY CLAIMS PROCESS
If you have a warranty claim you should notify the
contractor who installed your Product and ask that
the contractor notify FHP Manufacturing Company,
601 N.W. 65th Court, Ft. Lauderdale, FL 33309. To
process your claim, you will need a copy of your
original invoice or other proof of purchase, the
product serial number and documentation showing
the original installation date and location. The
alleged defective components or parts must be
returned to FHP in accordance with FHP procedure
then in force for handling goods returned for the
purpose of inspection to determine cause of failure
(contact FHP if you have questions regarding the
return process). If FHP determines that the returned
components and/or parts are defective and that this
warranty applies, FHP will furnish the repaired or
replacement components and/or parts to the
contractor who installed your Product.
This Warranty applies to FHP products installed in
the Continental United States and Canada only

601 N.W. 65th Court, Ft. Lauderdale, FL 33309
Phone: [phone] | Fax: [phone]
www.bosch-climate.us