IBC Intergas DC 15-95, DC 15-96, DC 20-125, DC 33-160 User Manual

DC Series Boilers / Water Heaters
DC 15-95, DC 15-96, DC 20-125, DC 33-160
(Natural Gas or Propane)
WARNING: If the information in this manual is not followed exactly, a re or
explosion may result causing property damage, personal injury, or loss of life.
Do not store or use gasoline or other ammable vapours and liquids or other combustible materials in the vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS:
Do not try to light any appliance.
Do not touch any electrical switch; do not use any phone in your building.
Immediately call your gas supplier from a nearby phone. Follow the gas
supplier’s instructions.
If you cannot reach your gas supplier, call the re department.
Installation and service must be performed by a qualied installer, service
agency or the gas supplier.
This Manual is also available in French - contact IBC or visit our web site www.ibcboiler.com
INSTALLATION AND OPERATING INSTRUCTIONS
www.ibcboiler.com
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
WARNING
If the information in this manual is not followed
exactly, a re or explosion
may result causing property damage, personal injury, or loss of life.
SAFETY CONSIDERATIONS
Installation, start-up and servicing of IBC boilers / water heaters must
be done with due care and attention, and should only be performed by
competent, qualied, licensed and trained heating technicians. Failure to
read and comply with all instructions and applicable National and local codes may result in hazardous conditions that could result in property damage and injury to occupants which in extreme cases might result in death.
HAZARDS & PRECAUTIONS
DANGER
Points out an immediately hazardous situation which
must be avoided in order to prevent serious injury or
death.
WARNING
Points out a potentially hazardous situation which
must be avoided to prevent
serious injury or death.
CAUTION
Points out a potentially hazardous situation which
must be avoided to prevent possible moderate injury and/
or property damage
NOTE
Points out installation, maintenance and operation details that will result in
enhanced e󰀩ciency, longevity
and proper operation of your
boiler / water heater.
BEST PRACTICES
Points out recommendations for better installation.
Supplied with the boiler / water heater - The IBC boiler / water heater is shipped with an accessory parts kit consisting of the following items:
1 x Wall Mounting Bracket, IBC Part # 250-647
1 x Condensate Assembly
1 x Pressure Relief valve, 3/4NPT, 30psi
1 x Outdoor Temperature Sensor
Air Vent and Relief Valve ttings
1 x Automatic Air Vent
4 x Lag Screws, Hex Head, Zn-Pl, 1/4 x 2-1/2 and Washers
1 x DC Installation & Operating Instructions
1 x DC/HC User Manual
1 x DC/HC Controller Manual
2
INSTALLATION AND OPERATION INSTRUCTIONS
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
SPECIFICATIONS
SPECIFICATION DC 15-95 DC 15-96 DC 20-125 DC 33-160
CSA Input (Natural Gas or Propane) – MBH 15 - 95 15 - 96 20 - 125 33 - 160
CSA Input (Natural Gas or Propane) – KW 4.4 - 27.8 4.4 - 28.1 5.6 - 36.6 9.7 - 46.9
CSA Output – MBH 14.4 - 85.5 14.5 - 85.9 18.6 - 110.8 30.4 - 140.0
CSA Output - KW 4.2 - 25.0 4.3 - 25.2 5.4 - 32.5 8.9 - 41.0
DHW - CSA Input (Natural Gas or Propane) ­MBH
DHW - CSA Input (Natural Gas or Propane) - KW 4.4 - 27.8 4.4 - 28.1 5.6 - 36.6 9.7 - 36.3
A.F.U.E 95% 96% 95% 94%
Min Gas Pressure (Nat. Gas or Propane) – inch
w.c.
Max Gas Pressure (Nat. Gas or Propane) – inch
w.c.
Power (120Vac/60Hz) - Watts @ full re with
internal pump
Weight (empty) – lbs/Kg 97 / 44 105 / 48 105 / 48 105 / 48
Pressure Vessel water content – USG/Liters 0.37 / 1.4 0.5 / 1.9 0.5 / 1.9 0.5 / 1.9
Max boiler ow rate - USgpm 10 10 11 11
Min boiler ow rate - USgpm 2 2 3 3
Max Operating Pressure – Space Heating Coil -
psig
Max Operating Pressure – Domestic Hot Water Coil - psig
Approved installation altitude - ASL 10,000 ft 10,000 ft 10,000 ft 10,000 ft
Ambient Temperature – Low (°F/°C) 32 / 0 32 / 0 32 / 0 32 / 0
Ambient Temperature – High (°F/°C) 122 / 50 122 / 50 122 / 50 122 / 50
Max relative humidity (non-condensing) 90% 90% 90% 90%
Min water Temperature - Space Heating (°F/°C) 50 / 10 50 / 10 50 / 10 50 / 10
Max water Temperature – Space Heating (°F/°C) 194 / 90 194 / 90 194 / 90 194 / 90
Min water Temperature – Domestic Hot Water (°F/°C)
Max water Temperature – Domestic Hot Water (°F/°C)
Min ow rate to activate DHW heating - USgpm 0.5 0.5 0.5 0.5
Max ow rate DHW heating - USgpm 3.0 3.0 4.0 4.0
DHW delivery: @70°F/ 39°C temp. rise gpm 2.5 2.5 3.2 3.2
Max equivalent vent length 3" (each side) 120' 120' 120' 120'
Max equivalent vent length 2" (each side) 35' 35' 35' 35'
* Natural Gas boilers / water heaters require a Propane conversion kit (see page #3-2, Table 10) to be ordered separately if converting a Natural Gas boiler / water
heater to Propane. Propane (LP) boilers / water heaters require a Natural Gas conversion kit (see page #3-2, Table 10) to be ordered separately if converting a Propane boiler / water heater to Natural Gas.
† boilers / water heaters are shipped with 30 psig pressure relief valve
15 - 95 15 - 96 20 - 125 33 - 124
5 5 5 5
14 14 14 14
128 128 130 164
43.5 43.5 43.5 43.5
150 150 150 150
104 / 40 104 / 40 104 / 40 104 / 40
149 / 65 149 / 65 149 / 65 149 / 65
INSTALLATION AND OPERATING INSTRUCTIONS
3
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
DANGER
HOT
BURN
Water temperture over 125°F (52°C) can cause severe burns instantly
°
or death from scalds.
Children, disabled, and elderly are at highest risk of being scalded.
°
See instruction manual before setting temperature at boiler.
°
Feel water before bathing or showering.
°
Temperature limiting valves are available, see manual.
°
WATER HEATER INSTALLATION GUIDELINES
WARNING
This boiler must be installed in accordance with local codes, if any; if not follow the National
°
Fuel Gas Code, ANSI Z223.1/NFPA 54, or the Natural Gas and Propane Installation Code, CAN/CSA B149.1, as applicable.
Failure to correctly install and operate this appliance can result in severe personal injury
°
or death.
The water heater, if utilized, shall have a pressure relief valve installed within 6” [152mm] of the
°
DHW HOT outlet connection. Refer to the Boiler User’s Manual before operating relief valve.
The water heater, if utilized, requires a pressure relief valve identified with the ASME V or HV
°
symbol and set to relieve at or below 150psi of domestic water pressure and a minimum relieving capacity of 125,000 Btu/hr with 3/4” NPT threads. For safe operation of the water heater, the relief valve must not be removed from its designated point of installation or plugged.
For complete information refer to installation manual.
°
Read and follow warnings and instructions.
°
CAUTION
Hotter water increases the risk of scald injury. Before changing the temperature setting, see
°
instruction manual.
ADJUSTABLE TEMPERATURE SETTING
Press the and hold for 2 seconds, then press again. When the LED is lit, the
°
Domestic Hot Water temperature can be set.
4
INSTALLATION AND OPERATION INSTRUCTIONS
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
CONTENTS
1.0 INSTALLATION....................................................1-1
1.1 GENERAL ...................................................1-1
1.2 CODE REQUIREMENTS........................................1-2
1.3 LOCATION ...................................................1-2
1.4 EXHAUST VENTING AND AIR INTAKE.............................1-3
1.5 CONDENSATE REMOVAL......................................1-16
1.6 WATER PIPING - SPACE HEATING ..............................1-20
1.7 DOMESTIC HOT WATER SYSTEM...............................1-28
1.8 GAS PIPING.................................................1-32
1.9 ELECTRICAL CONNECTIONS ..................................1-33
2.0 BOILER / WATER HEATER SYSTEMS AND OPERATION..................2-1
2.1 GENERAL ...................................................2-1
2.2 CONTROL ...................................................2-2
2.3 INSTALLER INTERFACE ........................................2-2
2.4 TANKLESS DOMESTIC HOT WATER MODES.......................2-4
2.5 ADDING DOMESTIC HOT WATER STORAGE.......................2-4
2.6 SPACE HEATING..............................................2-5
2.7 SEQUENCE OF OPERATION ....................................2-6
3.0 STARTUP AND COMMISSIONING ....................................3-1
3.1 LIGHTING AND SHUTTING DOWN THE BOILER ....................3-1
3.2 PRIOR TO START-UP ..........................................3-2
3.3 COMMISSIONING .............................................3-2
3.4 FUEL CONVERSION ...........................................3-4
4.0 MAINTENANCE ...................................................4-1
4.1 BOILER / WATER HEATER MAINTENANCE ........................4-1
5.0 TROUBLESHOOTING ..............................................5-1
5.1 PRELIMINARY CHECKS ........................................5-1
5.2 ELECTRONIC COMPONENTS ...................................5-2
6.0 DIAGRAMS.......................................................6-1
6.1 PARTS DIAGRAMS ............................................6-2
6.2 WIRING DIAGRAMS ...........................................6-6
INSTALLATION AND OPERATING INSTRUCTIONS
5
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
The Installer must carefully read this manual to ensure that all installation details can be adhered to. Special attention is to be paid to clearances and access, vent travel and termination, gas supply, condensate removal and combustion air supply.
DANGER
Should overheating occur
or the gas supply fails to
shut o󰀨, do not turn o󰀨 or
disconnect the electrical supply to the pump. Instead
shut o󰀨 the gas supply at
a location external to the appliance.
WARNING
Do not use this boiler / water
heater if any part has been under water. Immediately call
a qualied service technician to inspect the boiler / water
heater and to replace any part of the control system and any gas control that has been under water.
CAUTION
Care must be taken to properly size the boiler /
water heater for its intended
use. Prolonged full re run time, over-sizing or under­sizing, and incorrect ow rates through the boiler /
water heater can lead to increased maintenance
costs, equipment stress and
premature failure.
The Installer should do a pre-installation check the to ensure that the following precautions can be observed:
The boiler / water heater should be installed in areas where the combustion
air source is not subject to chemical fouling or agricultural vapours.
Exposure to corrosive chemical fumes such as chlorinated and/or uorinated
hydrocarbons can reduce the life of a boiler. Cleaners, bleaches, air
fresheners, refrigerants, aerosol propellants, dry-cleaning uids, de-greasers
and paint-removers all contain vapours which can form corrosive acid
compounds when burned in a gas ame. Airborne chlorides such as those
released with the use of laundry detergents are also to be avoided.
The boiler / water heater should be located where water leakage will not result
in damage to the area. If a location such as this cannot be found, a suitable drain pan should be installed under the appliance. The boiler / water heater is not to be installed above carpeting.
At a new construction site, or during renovations, action must be taken to
protect the boiler / water heater from drywall dust or other construction related contaminants; combustion air should be drawn from a CLEAN source (e.g. outdoors) and the boiler / water heater should be isolated from interior dust sources.
When the boiler / water heater is in operation, the impact of the steam plume
normally experienced at the exhaust terminal of a condensing boiler / water heater should be assessed. Generally, intake and exhaust pipes should terminate at a rooftop or sterile wall location. Boiler / water heater condensate is corrosive. Protective measures must be taken to prevent corrosion damage to metal roofs or other metal building components in contact with the condensate. Keep exhaust plumes well away from all building air intakes including those of neighbouring properties.
The exhaust outlet should be placed so as to reach 12" minimum above the
down-turned intake - to avoid exhaust re-ingestion.
For sidewall venting options: Both the inlet and exhaust terminations should
normally be located on the same plane (side) of the building. The elevation of both pipes can be raised in “periscope style” after passing through the wall to gain required clearance above grade and snow level.
Examine the condensate outlet to ensure proper disposal of condensate will
occur during operation. If condensates are to be discharged into building drain piping materials that are subject to corrosion, a neutralization package must be used.
Ensure that the pressure relief valve will be installed with no valves or other
means of isolation between its inlet and the boiler / water heater. Make sure the relief valve outlet will be piped with unobstructed piping (minimum 3/4" diameter) to a safe discharge location.
In locations where power supply quality varies or is unstable, installation of
surge protection and power conditioners up to and including battery back-up uninterrupted power supply devices should be considered.
Ensure the domestic hot water demands are considered before purchasing
the DC Series boiler / water heater. The addition of a storage tank or an IBC Indirect Water Heater may be required in some cases.
6
INSTALLATION AND OPERATION INSTRUCTIONS
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
INSTALLATION1.0
MODEL NUMBER
DC 15-95 29.0" [736]
DC 15-96 31.3" [796]
DC 20-125 31.3" [796]
DC 33-160 31.3" [796]
HEIGHT
1.1
GENERAL
DC Series gas-red modulating boilers / water heaters are low pressure, fully
condensing units having variable input ranges (see specication chart - page 3). The boilers / water heaters are approved as “Category IV” vented appliances using Direct Vent (sealed combustion).
Figure 1 shows outer case dimensions and piping and electrical holes. Use this
diagram to nd a suitable location for the boiler / water heater. See also Section
1.3 Location.
DESCRIPTION
A Exhaust Outlet 3" Schedule 40
B Combustion Air 3" Schedule 40
C
Cold Domestic Water Connection
D Hot Domestic Water Connection 3/4" Male NPT
E Heating Water Inlet (Return) 1" Male NPT
F Heating Water Outlet (Supply) 1" Male NPT
G Gas Inlet 1/2" Male NPT
H Condensate Outlet 3/4" Hose
I Knock-out (3) 1/2"
DC SERIES BOILERS / WATER HEATERS
3/4" Male NPT
Table 1: Connections
Figure 1a: Dimensions / Connections for DC Series Figure 1b: Dimensions / Connections for DC Series
INSTALLATION
1-1
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
1.2
1.3
WARNING
Keep boiler / water heater area
free and clear of combustible materials, gasoline, and
other ammable vapours and liquids.
WARNING
Combustion air must not be
drawn from areas containing
corrosive air from swimming
pools or spas, including air directly next to outdoor pools and spas.
WARNING
The boiler / water heater
shall not be exposed to
water leaks from piping or components located overhead.
This includes condensation dropping from un-insulated
cold water lines overhead.
WARNING
Ensure the gas ignition system components are
protected from water (dripping, spraying, rain, etc.) during
appliance operation and when
servicing (pump replacement, condensate trap servicing, control replacement, etc.)
CODE REQUIREMENTS
The DC 15-95, DC 15-96, DC 20-125, DC 33-160 models were tested to and
certied under CSA 4.9 / ANSI Z21.13 and Water Heater CSA 4.3 / ANSI
Z21.10.3.
The installation must conform to the requirements of the authority having jurisdiction or, in the absence of such requirements, to the National Fuel Gas
Code, ANSI Z223.1/NFPA 54, and/or Natural Gas and Propane Installation Code, CAN/CSA B149.1. The installation must also conform to the Canadian Electrical
Code Part 1 CSA C22.2 No.1 and/or the National Electrical Code ANSI/NFPA
70. Where required by jurisdiction, installation must conform to the Standard for Controls and Safety Devices for Automatically Fired Boilers, ANSI/ASME CSD-1.
If there is any conict, then the more stringent will apply.
LOCATION
The DC series boilers / water heaters are designed and approved for indoor
installation (wall), with signicant exibility of location provided with the available
venting options. The boiler / water heater can be placed in an alcove, basement, closet or utility room. Surrounding ambient conditions shall be 0°C to 50°C and less
than 90% relative humidity.
Install the boiler / water heater in areas where the combustion air source is not subject to chemical fouling or agricultural vapours. Exposure to corrosive chemical fumes such as chlorinated and/or uorinated hydrocarbons can reduce the life of a boiler / water heater. Cleaners, bleaches, air fresheners,
refrigerants, aerosol propellants, dry-cleaning uids, de-greasers and paint-
removers all contain vapours which can form corrosive acid compounds when
burned in a gas ame. Airborne chlorides such as those released with the use of
laundry detergents are also to be avoided. Similarly, ensure any direct vent air source is not adjacent to a clothes dryer exhaust terminal. Avoid agricultural
applications where the boiler / water heater and/or the intake air source are a󰀨ected by ammonia and/or dust.
Locate the boiler / water heater where water leakage will not result in damage to the area. If a location such as this cannot be found, a suitable drain pan should be installed under the appliance. The boiler / water heater is not to be installed above carpeting.
Boiler / Water Heater Weight – approximately 105 lb / 44 kg. For support fasteners, use the supplied 4 x 1/4" x 2-1/2" long lag screws. Installer to supply 1/4" bolts if metal mounting systems are used. Fasteners are to be attached to solid material capable of supporting the combined weight of the boiler / water heater and piping assembly components.
Other factors a󰀨ecting potential mounting sites:
Ensure minimum clearance requirements for combustible materials (see
Table 2) are satised.
Minimum 24" clearance at the front and 10" above is recommended for
adequate servicing. Check local codes for additional access and service clearance requirements.
At a new construction site, or during renovations, action must be taken to protect the boiler / water heater from drywall dust or other construction related contaminants; combustion air should be drawn from a CLEAN source (e.g. outdoors) and the boiler / water heater should be isolated
from interior dust sources.
1-2
INSTALLATION AND OPERATION INSTRUCTIONS
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
WARNING
Exposed water piping and associated components
(relief valves, circulators, etc.)
should not be in contact with
combustible materials. Check local codes for required clearances and/or provide adequate insulation.
WARNING
DO NOT MOUNT THIS BOILER / WATER HEATER TO HOLLOW WALL STRUCTURES - The
combined weight of the boiler, its water contents and associated piping
components can exceed 150
pounds. Fasteners must be rated for this strain, and must
be rmly anchored into solid
material that will support this weight.
DISTANCE FROM
SURFACE
Front 2" 24"
Rear 0" 0"
Left Side 1.5"
Right Side 4"
Top 2" 24"
Bottom 8" 24"
Table 2: Clearance from boiler / water heater cabinet
A minimum distance below the boiler / water heater of 11" is required to provide clearance for the supplied condensation trap assembly. More clearance will typically be required to accommodate associated water and
gas piping.
COMBUSTIBLE SURFACES
RECOMMENDED DISTANCE FOR INSTALLATION AND SERVICE
6" (labels may be di󰀩cult to read with
reduced clearance)
6" (labels may be di󰀩cult to read with
reduced clearance)
Installers are to take all
necessary precautions
to avoid injury during the installation of this boiler /
water heater.
1.4
DANGER
Do not common vent the DC modulating series boilers /
water heaters with any other existing or new appliance.
INSTALLATION
Figure 2: Wall mounting of boiler
EXHAUST VENTING AND AIR IN­TAKE
It is important to carefully plan the installation to ensure the appropriate
vent materials, travel and termination decisions are incorporated. Specic
attention is warranted to manage the impact of the steam plume normally experienced at the exhaust terminal of a condensing boiler. Generally,
intake and exhaust pipes should terminate at a rooftop or sterile wall location, to maximize customer satisfaction. Keep exhaust plumes well away from all building air intakes including those of neighbouring
properties.
1-3
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
WARNING
Venting, condensate drainage,
and combustion air systems
for all IBC boilers / water
heaters must be installed in compliance with all applicable codes and the instructions of
their respective Installation Manuals.
Inspect nished vent and air
piping thoroughly to ensure all are airtight and comply
with the instructions provided and with all requirements of
applicable codes.
Failure to comply will result
in severe personal injury or
death.
All venting must be installed in accordance with the requirements of the jurisdiction having authority: in Canada, Part 8, Venting Systems of the B149.1­10 Code and any other local building codes are to be followed. In the USA the National Fuel Gas Code, ANSI 223.1, latest edition, prevails. Where there is a discrepancy between the installation instructions below, and the code requirements, the more stringent shall apply.
Provisions for combustion and ventilation air in accordance with the section “Air for Combustion and Ventilation,” of the National Fuel Gas Code, ANSI Z223.1/
NFPA 54, or Clause 8.2, 8.3 or 8.4 of Natural Gas and Propane Installation Code, CAN/CSA B149.1, or applicable provisions of the local building codes.
NOTE
The minimum wall thickness for venting is 1” and the maximum wall thickness for venting is 14”.
NOTE
A water heater shall not be
connected to a chimney ue serving a separate appliance,
designed to burn solid fuel.
Figure 3: Basic exhaust vent assembly
IMPORTANT
When an existing boiler / water heater is removed from a common venting system, the common venting system is likely to be too large for proper venting of the appliances remaining connected to it.
When re-sizing any portion of the common venting system, the common venting system should be re-sized to approach the minimum size as determined using the appropriate tables in the National Fuel Gas Code, ANSI Z223.1 - latest edition. In Canada, use the B149.1 Installation Code - latest edition.
At the time of removal of an existing boiler the following steps shall be followed with each appliance remaining connected to the common venting system placed in operation, while the other appliances remaining connected to the common venting system are not in operation.
Seal any unused opening in the common venting system.
Visually inspect the venting system for proper size and horizontal pitch and
determine there is no blockage or restriction, leakage, corrosion and other
deciencies which could cause an unsafe condition.
Insofar as is practical, close all building doors and windows and all doors
between the space in which the appliances remaining connected to the common venting system are located and other spaces of the building. Turn on clothes dryers and any appliance not connected to the common venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed. Do not operate a summer
exhaust fan. Close replace dampers.
1-4
INSTALLATION AND OPERATION INSTRUCTIONS
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
Place in operation the appliance being inspected. Follow the lighting
instructions. Adjust thermostat so appliance will operate continuously.
After it has been determined that each appliance remaining connected to the
common venting system properly vents when tested as outlined above, return
doors, windows, exhaust fans, replace dampers and any other gas-burning
appliance to their previous conditions of use.
Any improper operation of the common venting system should be corrected
so the installation conforms with the National Fuel Gas Code, ANSI Z223.1 ­latest edition. In Canada, all installations must conform with the current CAN/ CGA - B149.1 Installation Code and/or local codes.
1.4.1 Applications
All DC Series boilers / water heaters must be installed as a Direct Vent venting system. The combustion air must be piped in from the outdoors and connected directly to the boilers / water heaters combustion air connection. See section
1.4.7 for air intake piping requirements.
1.4.2 Exhaust Vent Material
WARNING
Covering non-metallic vent pipe and ttings with thermal
insulation shall be prohibited.
EXHAUST VENT MATERIAL – CANADA
Only PVC, CPVC, Polypropylene (PPs) or stainless steel* vent component systems approved under ULC-S636 Standard for Type BH Gas Venting Systems are to be used. Ensure compliance with exhaust temperature limitations for
the respective materials. The vent temperature is limited with the use of a ue
temperature sensor and software to ensure the maximum temperature of the PVC venting material is not exceeded.
ULC-S636 PVC
ULC-S636 CPVC
ULC-S636 PPs
EXHAUST VENT MATERIAL – USA
PVC, CPVC, PPs venting materials are approved for use with this boiler /
water heater in the USA. The vent temperature is limited with the use of a ue
temperature sensor and software to ensure the maximum temperature of the
PVC venting material is not exceeded. PVC venting material shall be certied to Sch. 40 ASTM D1785 or D2665. CPVC venting material shall be certied to Sch.
40 ASTM F441.
INSTALLATION
1-5
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
WARNING
Do not mix venting materials from di󰀨erent Manufacturers.
These venting materials are
designed to be installed as part of a complete system.
Failure to comply may result
in severe personal injury or
death.
Do not use ABS or any cellular core pipe for exhaust venting.
Use of cellular core PVC (ASTM F891), cellular core CPVC, or Radel® (polyphenolsulfone) in venting systems shall be prohibited.
The boiler / water heater o󰀨ers 3" venting connections. Fittings are to be used
to adapt to the appropriate diameter (see Vent Travel below). CPVC or PVC
Exhaust Venting is to be inserted directly into the 3" female stainless steel tting
on left side of the boiler’s top panel. The clamp must be tightened to secure the
pipe into the tting. If PPs materials are being used, ensure the proper adapter is
used to transition from the Schedule 40 diameter to the PPs size diameter.
For PPs material, use the 3" transition/ adaptor tting (Sch 40 to PPs) o󰀨ered
by the respective PPs manufacturers Centrotherm / InnoueTM (their part # ISAA0303) or M&G Dura Vent /PolyPro (#3PPS-AD). For PPs material exposed to outdoor weather, follow the venting suppliers’ recommendations on UV protection.
Combustion air piping is inserted directly into the 3" female stainless steel tting
on the right (see Section 1.4.7).
Venting shall be supported in accordance with applicable code.
1.4.3 Vent Travel
CPVC or PPs (Rigid Single Wall) piping is the standard venting option; with this, the DC Series boilers / water heaters, for example, can be vented up to 120 equivalent feet from the vent termination using 3". The actual vent travel allowance is reduced for ttings in accordance with Table 3. – e.g. for the models listed above using 6 x 90º CPVC long sweep elbows, the maximum lineal measure of pipe allowed using 3" pipe is 90 feet (120' – (6 x 5' = 30) = 90').
WARNING
Fully insert the approved venting material into the boilers / water heaters
exhaust outlet and tighten
clamp to ensure the venting connection is locked in place.
For 3" Flexible PPs, up to 35 actual lineal feet are allowed in a nominally vertical orientation (>45°). The equivalent length of 3" Flexible PPs shall be computed using a multiple of 1.4:1, e.g. 35' x 1.4 = 49' equivalent. The balance of the venting allowance is still available for use with rigid PPs piping material. 2" Flexible PPs is not allowed.
EXHAUST PIPE SIZE/FITTINGS MAXIMUM EQUIVALENT LENGTH
Schedule 40 PVC, CPVC or PPs – Allowances are for each side separately.
2" 35'
3" 120'
2" or 3" 90' Long Sweep Vent Elbow Allow 5 equivalent feet
2" or 3" 90' Short Sweep Vent Elbow Allow 8 equivalent feet
2" or 3" 45' Vent Elbow Allow 3 equivalent feet
PPS
PPs 87-90' Elbow Allow 8 equivalent feet
Flex PPS
3" PPs Flex (Max. 35) actual feet times 1.4
Table 3: Maximum Exhaust Venting Length
Exhaust venting must slope down towards the boiler / water heater with a pitch of at least 1/4" per foot (PPs vent: follow PPs manufacturer requirements) so condensate runs back towards the trap. Support should be provided for intake and vent piping, particularly so for horizontal runs (follow local code).
1-6
INSTALLATION AND OPERATION INSTRUCTIONS
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
Figure 4
Exhaust piping is inserted directly into the 3" female stainless steel tting on the
top, left side of the boiler / water heater and run horizontally or vertically to the outdoors. Bird screen of 1/4" stainless steel or plastic mesh (eg. IPEX System 636 drain grate for CPVC systems) is useful to guard against foreign objects.
BEST PRACTICES
To reduce the possibility of
expansion noise, allow a 1/4"
gap around the exhaust and
air intake piping.
Follow all installation instructions supplied by the pipe and tting
manufacturer.
Ensure all venting components are clean of burrs/debris prior to assembly. Care is to be taken to avoid ingestion into the fan of PVC/ABS debris left in the combustion air piping.
All joints must be secured using appropriate solvent cement to bond the respective pipe material (Canada: CPVC cement approved under ULC-S636, in accordance with its manufacturer instructions; USA: PVC (ASTM D2564), or PVC/ABS (D2235) - Use transition glue anywhere that PVC and CPVC are joined. Follow the cement manufacturer’s instructions closely when joining various components. For PPs, connections shall be secured using approved retainer clips supplied by the respective PPs manufacturer.
All vent connections must be liquid and pressure tight. Prior to ring the boiler,
and before any of the venting run is concealed by the building construction, the installer must test the exhaust joints under fan pressure with the vent blocked,
using a soap/water solution. Installer must ll condensate trap prior to test.
1.4.4 Venting Passage Through Ceiling and Floor
Conrm material meets local codes including re stopping requirements.
Some local jurisdictions require a minimum initial length of pipe be exposed or
accessible for inspection.
Pipe clearances - no IBC requirements, but best practice allows a minimum
1/4" gap around the pipe to prevent binding and expansion noise; follow local codes.
All piping must be liquid and pressure tight.
INSTALLATION
1-7
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
CAUTION
Vent termination clearances
in this section are
code minimum, or IBC
recommended minimum
requirements, and may be inadequate for your installation. Building envelope
details must be examined carefully, and ingress of moisture into building
structures is to be avoided.
Serious structural damage
may occur if adequate
precautions and clearances are not allowed for.
These precautions are to be
observed for neighbouring
structures as well as for the
structure the boiler(s) are
installed in.
1.4.5 Rooftop Vent Termination
DIRECT VENT - TWO PIPE
Rooftop vents must terminate as follows:
The exhaust pipe can terminate in an open vertical orientation without concern
about rain inltration; rain will drain away through the condensate trap.
The intake air pipe is not typically drained, so it must be terminated with a down­turned elbow (see Figure 5). The intake pipe does not need to penetrate the roof at the same elevation as the exhaust; lower down the roof is OK.
The air intake pipe may terminate on the side wall of the building as long as
the air intake terminal is turned down and the side wall of the building is not exposed to large wind loads i.e.: prevailing winds.
Optional bird screen may be placed in a termination tting. Leave unglued,
and hold in place with a short nipple. This permits easy access for cleaning.
For roof top venting of multiple boiler / water heater sets, group all intake
terminals together for a common penetration through a custom cap. Alternatively, place in the closest proximity achievable using commonly
available pipe ashing. Similarly group the exhaust pipes and place the 2
separate groups of pipes at least 3' apart (the closest intake and exhaust pipes shall be 36" - or more - apart). Use the same 12" (minimum) vertical separation for 2 pipe option. For alternate group terminations, contact the IBC Factory for written guidance.
DO NOT exhaust vent into a common venting system.
Figure 5a: Rooftop exhaust venting with sidewall combustion air.
WARNING
Condensate can cause corrosion of metal roong
components and other
roong materials. Check with the builder or roong
contractor to ensure that materials will be resistant to
acidic condensate. pH levels can be as low as 3.0
1-8
Figure 5b: Rooftop vent terminal congurations
DIRECT VENT CONCENTRIC ROOF TOP TERMINATION
Roof Top Concentric Termination Kits are approved for use with this boiler / water heater model. The installation of the vertical roof top concentric termination must follow the installation instructions supplied with the venting material manufacturer. Care must be taken to install the termination kit a minimum horizontal distance of 10' (305cm) away from any portion of the building and a minimum of 18" (46cm) above the roof line plus the anticipated snow line. See Figure 6 and 7 on page 1-9.
INSTALLATION AND OPERATION INSTRUCTIONS
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
Figure 6: Vertical Concentric Termination - Two Kits
INSTALLATION
Figure 7: Vertical Concentric Termination - Single Kit
1.4.6 Sidewall Vent Termination
DIRECT VENT - TWO PIPE
Sidewall direct vent applications shall be vented as follows:
Both the inlet and exhaust terminations should normally be located on the
same plane (side) of the building.
The exhaust outlet is to be placed so as to reach 12" minimum above the
down-turned intake - to avoid intake re-ingestion of exhaust gases.
The elevation of both pipes can be raised in “periscope style” after passing
through the wall, then congured as in Figure 8, to gain required clearance.
1-9
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
WARNING
It is extremely important to maintain at least the minimum
separation of exhaust vent termination from boiler / water heater intake air as illustrated in gures 5, 8 and
13. Failure to do so can result
in a dangerous situation where exhaust gasses are re-ingested with combustion air. Damage to the boiler
/ water heater can result
from a failure to maintain these separations. Improper
installation will void the
warranty.
Use a 45° elbow on the exhaust termination to launch the plume up and o󰀨
the sidewall, for protection of wall.
Bird screen of 1/4" stainless steel or plastic mesh eg. (IPEX System 636 drain
grate for CPVC systems) is useful to guard against foreign objects.
Figure 8: Sidewall vent termination - piping conguration
WARNING
In areas of high snowfall,
Users must be advised to check side wall vent and air intake terminations on
a regular basis to ensure
blockage does not occur.
DIRECT VENT SIDE WALL TERMINATION KITS
The following Side Wall Termination Kits are approved for use with the DC series boilers / water heaters and are subject to the following restrictions. NOTE: Some jurisdictions may not allow this type of side wall termination due to close proximity to the neighboring properties. See Figures 9a, 9b and 10 on page 1-11.
The installation instructions, clearances and wall thickness requirements of the approved vent termination manufactures must be followed.
Approved Side Wall Termination Kits are listed as follows: (Alternate vent termination kits must be submitted to IBC for approval prior to installation.)
Ipex - #196984 – 2" PVC low prole termination kit (see Figure 10).
Ipex - #196985 – 3" PVC low prole termination kit (see Figure 10).
1-10
INSTALLATION AND OPERATION INSTRUCTIONS
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
Figure 9a: Horizontal Concentric Termination - Two Kits
INSTALLATION
Figure 9b: Horizontal Concentric Termination - Single Kit
Figure 10: Ipex #196984 2" PVC and #196985 3" PVC
For side venting of multiple boiler / water heater sets, group all intake terminals together with 6" (minimum) lateral spacing, and similarly group the exhaust pipes. Place the 2 groups on the same plane of the building (e.g. north facing wall). Place the 2 groups of pipes at least 3' apart (the closest intake and exhaust pipes shall be 36" - or more – apart. Use same 12" (minimum) vertical separation (See (A) in Figure 13). Alternately, as long as the boilers / water heaters are identical models - intake and exhaust terminals can maintain a minimum of 12" of separation horizontally from any exhaust or inlet termination of an adjacent boiler (See (B) in Figure 13). For alternate group terminations, contact the IBC Factory for written guidance.
1-11
Figure 11: IBC recommended minimum vent terminal clearance under ventilated sot
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
Figure 13: Sidewall vent termination - multiple vent piping conguration
CONCENTRIC SIDE WALL TERMINATION KITS:
Must be installed on the same horizontal line (not stacked)
Must be installed with a min separation of 12” center to center
Use caution when installing Concentric Side Wall Termination Kits when the outdoor design temperature is below 5°F / -15°C. Possible blockage of the combustion air intake increases when the outdoor temperature drops below this temperature.
The clearances recommended by the vent termination manufacture must be followed.
Approved Concentric Side Wall Termination Kits are listed as follows: (Alternate vent termination kits must be submitted to IBC for approval prior to installation.)
Centrotherm – Innoue #ICWT242 (2” termination) + ICTC0224 (2” concentric
transition to 2 pipe)
Centrotherm – Innoue #ICWT352 (3” termination) + ICTC0335 (3” concentric
transition to 2 pipe)
Duravent – Polypro #3PPS-HK – Horizontal Termination Kit – Concentric
Ipex - # 197009 – 3” CPVC concentric termination kit
Ipex - # 196006 – 3” PVC concentric termination kit
Figure 12: Prohibited installation
1-12
VENT TERMINAL CLEARANCE MINIMUMS ARE AS FOLLOWS:
The vent for this appliance shall not terminate:
1. Over public walkways; or
2. Near so󰀩t vents or crawl space vents or other areas where condensate or
vapor could create a nuisance or hazard or cause property damage; or
3. Where condensate vapor could cause damage or could be detrimental to the
operation of regulators, relief valves, or other equipment.
INSTALLATION AND OPERATION INSTRUCTIONS
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
WARNING
In addition to preventing
ingestion of chemical contaminants, care must
be taken to ensure air intake terminals are not
installed in locations where contamination might occur due to ingestion of particulate
foreign material (dust, dirt and debris).
WARNING
Intake air openings must be congured such that rain
or other forms of moisture
cannot enter the air intake piping system. Otherwise serious damage to the boiler /
water heater may result.
NOTE
Care must be taken when installing air intake piping to ensure that a “trap” is not
formed in the piping so as to allow a build-up of water, and
blockage of intake air.
Such blockage will result in a boiler / water heater safety
shut-down.
CANADIAN INSTALLATIONS1
A= Clearance above grade, veranda, porch, deck, or balcony
B= Clearance to window or door that may be opened
C= Clearance to window or door that may be opened
D= Clearance to permanently closed window
E= Clearance to
unventilated so󰀩t
F= Clearance to outside corner
G= Clearance to inside corner
H= Clearance to each side of center line extended above meter/regulator assembly
I= Clearance to service regulator vent outlet
J= Clearance to nonmechanical air supply inlet to building or the combustion air inlet to any other appliance
K= Clearance to a mechanical air supply inlet
L= Clearance above paved sidewalk or paved driveway located on public property
M= Clearance under veranda, porch deck, or balcony
1 In accordance with the current CSA B149.1 Natural Gas and Propane Installation Code
2 In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Gas Code
† A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family
dwellings and serves both dwellings.
‡ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the oor.
* Clearance in accordance with local installation codes and the requirements of the gas supplier.
12 in (30 cm) 12 in (30 cm)
6 in (15 cm) for appliances ≤
10,000 Btuh (3 kW), 12 in (30 cm) for appliances > 10,000 Btuh
(3 kW) and ≤ 100,000 Btuh (30
kW), 36 in (91 cm) for appliances
≤100,000 Btuh (30 kW)
* *
* *
* *
* 4 ft (1.22m) or local code, whichever is stricter
* 4 ft (1.22m) or local code, whichever is stricter
3 ft (91 cm) within a height 15 ft above the meter/regulator assembly
3 ft (91 cm) *
6 in (15 cm) for appliances ≤
10,000 Btuh (3 kW), 12 in (30 cm) for appliances > 10,000 Btuh
(3 kW) and ≤ 100,000 Btuh (30
kW), 36 in (91 cm) for appliances
≤100,000 Btuh (30 kW)
6 feet (1.83 m) 3 ft (91 cm) above
7 ft (2.13 m) † *
12 in (30 cm) ‡ *
US INSTALLATIONS
6 in (15 cm) for
appliances ≤ 10,000
Btuh (3 kW), 9 in (23 cm) for appliances > 10,000 Btuh (3 kW)
and ≤ 50,000 Btuh (15
kW), 12 in (30 cm) for appliances > 50,000 Btuh (15 kW)
* 4 ft (1.22m) or local code, whichever is stricter
* 4 ft (1.22m) or local code, whichever is stricter
*
6 in (15 cm) for
appliances ≤ 10,000
Btuh (3 kW), 9 in (23 cm) for appliances > 10,000 Btuh (3 kW)
and ≤ 50,000 Btuh (15
kW), 12 in (30 cm) for appliances > 50,000 Btuh (15 kW)
if within 10 ft (3 m) horizontally
2
INSTALLATION
1-13
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
INSIDE
CORNER DETAIL
G
V
A
D
V
E
B
V
L
V VENT TERMINAL X AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITTED
Figure 14A: Vent Terminal Clearance
H
B
C
FIXED
V
CLOSED
OPERABLE
V
F
B
B
V
B
OPERABLE
A
B
V
FIXED
CLOSED
I
X
V
J
M
V
X
K
1-14
Figure 14B: Distance Inside / outside minimums
1.4.7 “Direct Vent” Combustion Air Intake Piping
The boiler / water heater must always be installed as a Direct Vent venting system with the combustion air piped directly from the outdoors to the boilers / water heaters combustion air connection. Provisions for combustion and ventilation air in accordance with the section “Air for Combustion and Ventilation,” of the National Fuel Gas Code, ANSI Z223.1/NFPA 54, or Clause 8.2, 8.3 or 8.4 of Natural Gas and Propane Installation Code, CAN/CSA B149.1, or applicable provisions of the local building codes.
INSTALLATION AND OPERATION INSTRUCTIONS
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
Figure 15: Direct vent combustion air intake
For 3" Flexible PPs, up to 35 actual lineal feet are allowed in a nominally vertical orientation (>45°). The equivalent length of 3" Flexible PPs shall be computed using a multiple of 1.4:1, e.g. 35' x 1.4 = 49' equivalent. The balance of the venting allowance is still available for use with rigid PPs piping material. 2" Flexible PPs is not allowed.
INTAKE PIPE SIZE/FITTINGS MAXIMUM EQUIVALENT LENGTH
Schedule 40 ABS PVC, CPVC or PPs – Allowances are for each side separately.
2" 35'
3" 120'
2" or 3" 90' Long Sweep Vent Elbow Allow 5 equivalent feet
2" or 3" 90' Short Sweep Vent Elbow Allow 8 equivalent feet
2" or 3" 45' Vent Elbow Allow 3 equivalent feet
PPS
PPs 87-90' Elbow Allow 8 equivalent feet
Flex PPS
3" PPs Flex (Max. 35) actual feet times 1.4
Table 4: Maximum intake piping length.
For the inlet air – Schedule 40 PVC, CPVC, ABS or PPs piping of any type is permitted. Use same diameter as Vent pipe.
INSTALLATION
Combustion air piping is inserted directly into the 3" female stainless steel tting
on the top, right side of the boiler / water heater and run horizontally or vertically to the outdoors. Bird screen of 1/4" stainless steel or plastic mesh (eg. IPEX System 636 drain grate for CPVC systems) is useful to guard against foreign objects.
Care must be taken to ensure adequate separation is maintained between the
air intake inlet and the vent terminal. Refer to the vent terminal conguration
drawings in the Vent Termination section above.
1-15
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
Support should be provided for intake piping, particularly so for horizontal runs (follow local code).
WARNING
Fill trap with water before
boiler / water heater is rst red to prevent exhaust
fumes from entering room.
Never operate the boiler /
water heater unless the trap is
lled with water.
Failure to comply will result
in severe personal injury or
death.
1.5
1.4.8 “Indoor Air” Combustion Air Intake
Using Indoor Combustion Air is not approved for use with the DC series boilers / water heaters.
1.4.9 Closet Installations
For installations in a conned space (such as a closet), ventilation openings may
be needed through a door or wall to prevent excessive heat from building up inside the space.
The boiler / water heater shall not be exposed to ambient conditions above 122°F (50°C) or below 32°F (0°C).
CONDENSATE REMOVAL
IBC’s specied vent conguration promotes the safe drainage of moisture from the boiler / water heater and exhaust venting without owing liquids back through
the heat exchanger.
Reliable system operation requires (1) proper design and installation of exhaust venting to allow condensate to run back to the drain/trap; (2) acid neutralization as appropriate. To achieve these:
WARNING
The Trap Hook must be
installed as instructed and all
trap ttings must be tightened as instructed to prevent leakage of ue gasses.
Failure to comply may result
in severe personal injury or
death.
1-16
Figure 17: Condensate Trap, disassembled
1. Allow for a 1/4" per foot slope back to the vent connection, with appropriate
hangers to maintain that gradient.
2. Ensure the supplied trap is correctly installed and lled with water.
3. When required, add (and maintain in good condition) a neutralization tank.
INSTALLATION AND OPERATION INSTRUCTIONS
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
Figure 18: Condensate trap installation
NOTE
It is the responsibility of
the installing and/or service Contractor to advise and
instruct the end User in how to perform the Trap cleaning
procedure, and to advise that the Trap be checked at least every two months and cleaned as required.
1.5.1 Condensate Trap
A condensate trap must be installed on the drain connection at the base of the boiler / water heater as shown in Figure 18.
1.5.2 Condensate Trap Assembly - Installation
1. Undo Drain Spout Compression Nut, remove Drain Hose from Trap Drain
Outlet. Remove Upper Compression Nut and Washer and slide over Boiler / Water Heater Drain Outlet (A). Insert one Trap Hook barb into the back mounting hole.
2. Fill Trap with water, and slide Trap Body over Boiler / Water Heater Drain
Outlet (A). Swing Trap Hook (B) around the Drain Outlet connection threads. Insert remaining Trap Hook barb into the front hole. Pull the trap slightly downward to seat it against the hook and tighten Upper Compression nut.
3. Attach Drain Hose and tighten Drain Spout Compression Nut.
INSTALLATION
1-17
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
1.5.3 Condensate Trap Assembly - cleaning procedure
1. Turn o󰀨 the power to the boiler / water heater and allow it to cool down.
2. Remove the trap from the boiler / water heater (reverse the installation
procedure above).
3. Remove the Trap Cleanout Assembly, from the Trap Body and clean and
ush the debris out.
4. Re-assemble trap components, re-ll trap, and replace on boiler / water
heater as described in the installation instructions above.
1.5.4 Further installation details
Condensate drain must be piped to within 1" of a drain or be connected to a
condensate pump.
Drainage line must slope down to the drain at a pitch of 1/4" per foot so
condensate runs towards the drain.
Condensate traps should be checked every 2 months, and cleaned and
relled as necessary.
1-18
INSTALLATION AND OPERATION INSTRUCTIONS
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
Figure 19: Condensate trap disassembly for cleaning
WARNING
If condensates are to be discharged into building drain piping materials that are subject to corrosion, a neutralization
package must be used.
DANGER
The water in the condensate
neutralizer can cause severe burns to the skin. Use extreme caution when servicing the
condensate neutralizer. Wear
protective gloves and eyewear.
Figure 20: Condensate trap drainage
CAUTION
When a condensate
neutralization package is installed, the pH of the
condensate discharge must be measured on a regular schedule to ensure the
neutralizing agent is active and e󰀨ective.
INSTALLATION
Figure 21: Condensate neutralization tank
1-19
DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
1.6
WATER PIPING - SPACE HEATING
1.6.1 General Piping Considerations
The DC series boilers / water heaters include a factory installed, integral Grundfos UP 15/58 heating pump. The pump is designed to provide adequate
ow through the boiler / water heater and near boiler / water heater piping. The
pump is pre wired.
Figure 22: Overview of piping options
Primary/secondary piping or the use of a bu󰀨er tank / hydraulic separator is recommended for maximum exibility in multi zone/load applications. Piping loads in parallel is only acceptable in systems where the minimum ow rate is
guaranteed to be higher than the minimum for the boiler / water heater and the
boilers / water heaters pump is adequate to provide the required ow rate and
pump head for the system.
There are some important details to consider however, and this section of the Installation and Operating Manual will walk you through them so you can enjoy a trouble-free installation.
1-20
Table 5: Boiler side pump curve
INSTALLATION AND OPERATION INSTRUCTIONS
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