TriangleTube Prestige Excellence Manual

*INS
*INST TA
AL LL LA AT TION ION A AN D M N D M A AI N I N T TE N E N A AN C E * NCE*
M
MA AN U N U A AL L
2007-19 Manual Prestige Excellence_IWH
prestige
Excellence
Indirect Water Heater
Revised 3/6/08
WARNING • Before proceeding with installation and operation, read entire manual care-
fully.Failure to do so can cause injury or property damage.
• When receiving the PRESTIGE Excellence, any claims for damage or
shortage in shipment must be filed immediately against the transporta-
tion company by the consignee.
IMPORTANT
•Warranty Registration Card must be filled out by the customer and mailed
within thirty (30) days of installation in order to gain warranty coverage.
• Retain and affix this manual near the water heater for future reference
•Installation and service should only be performed by a qualified installer or
service technician.
• Installations and service should be performed by a license plumber or gas
fitter in the Commonwealth of Massachusetts.
Part 2 of 2

Tables of Contents
Product & Safety Information ..................................1-2
Pre-Installation ..............................................3-4
Installation - Domestic Piping
Temperature & Pressure (T&P) Relief Valve . . . . . . . . . . . . . . . . . .5
Drain Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Automatic Air Vent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Thermal Expansion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Water Hammer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Vacuum Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
General Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Domestic Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Thermostatic Mixing Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Recirculation Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Storage Tank Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Installation - Piping Diagrams ..................................9-10
Water Heater Start-Up
Filling the Inner (Domestic Water) Tank . . . . . . . . . . . . . . . . . . . . .11
Filling the Outer (Boiler Water) Tank . . . . . . . . . . . . . . . . . . . . . . .11
Setting the Thermostat Mixing Valve ........................11
General Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Program Access of the MCBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Activating the Access Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-14
DHW Storage Temperature Setting . . . . . . . . . . . . . . . . . . . . . . . . .15
Setpoint Value Addition for DHW . . . . . . . . . . . . . . . . . . . . . . . . . .15
DHW ON Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15-16
DHW OFF Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16-17
Additional DHW Feature
Frost Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Factory Setting for Parameters . . . . . . . . . . . . . . . . . . . . . . . . .18
Water Heater Maintenance
Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Filling Water Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Draining Water Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19-20
Draining Inner (Domestic Water) Tank . . . . . . . . . . . . . . . . . . . . . . .20
Draining Outer (Boiler Water) Tank . . . . . . . . . . . . . . . . . . . . . . . . .20
i

Tables of Contents
Replacement Parts ...........................................21
Water Heater Specifications
Excellence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Performance
Excellence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
ii

Product & Safety Information
Indicates the presence of a hazardous situa-
tion which, if ignored, will result in death, seri-
ous injury or substantial property damage.
Indicates a potentially hazardous situation
which, if ignored, can result in death, seri-
ous injury or substantial property damage.
Indicates a potentially hazardous situation
which, if ignored, may result in minor
injury or property damage.
Indicates special instructions on installation,
operation or maintenance, which are impor-
tant to equipment but not related to person-
al injury hazards.
Indicates recommendations made by
Triangle Tube for the installers which will
help to ensureoptimum operation and
longevity of the equipment
BEST PRACTICES
NOTICE
CAUTION
WARNING
DANGER
The following terms are used throughout this manual to bring attention to the presence of poten-
tial hazards or important information concerning the product.
Definitions
1
Triangle Tube reserves the right to modify the technical specifications and components of its prod-
ucts without prior notice.
NOTICE

Product & Safety Information
Bacteria can develop in the domestic water
system if certain minimum water tempera-
tures are not maintained.
HOT WATER CAN SCALD!
Water temperature over 125ºF can cause
severe burns instantly or death from scalds.
• Children, disabled and elderly are at highest
risk of being scalded.
-Never leave them unattended in or
near shower, bathtub or sink.
- Never allow small children to use a hot
water faucet or draw their own bath.
•To avoid any potential scald hazard or if
codes require specific water temperatures at
the hot water faucet, the installer must:
- Install the factory supplied thermostatic
mixing valve at this appliance and ensure it
is working property
and
-Set the domestic storage temperature to the
lowest temperature which satisfies your
hot water needs.
- Feel and adjust water temperature before
bathing or showering.
- Water drained from the system drain
valves may be extremely hot.
TO AVOID INJURY:
- Make sure all connections are tight.
- Direct water flow away from any person.
Protection must be taken against exces-
sive temperature and pressure!
TO PROTECT AGAINST EXCESSIVE
TEMPERATURE AND PRESSURE
• Check if the Temperature & Pressure
(T&P) relief valve is installed in the loca-
tion provided (DHW Side).
• Check if the 30 psi relief valve supplied
is installed in the location provided (CH
Side)
• To avoid injury, install the relief devices
to comply with local code requirements.
To prevent damage to the inner tank, the
Installer must:
• Always fill inner tank prior to outer
tank and always drain outer tank prior
to inner tank.
• Relieve primary system pressure
below 15 psig prior to draining inner
tank.
CAUTION
CAUTION
DANGER
WARNING
2

3
Codes Compliance
Installation of the Excellence Water Heater must
conform with the instructions in this manual and
where applicable:
• local, state, provincial, and national codes,
laws, regulations and ordinances.
• in Canada - CAN / CGA B149.1 or B149.2
Installation Code.
Excellence water heater is exempt from ASME
Section VIII, Division 1 Code construction per
Interpretation VIII-86-136. Check with local codes
for applicability.
The Excellence water heater will absorb less
than 200,000 BTU/hr when domestic water
outlet temperature is 194ºF and boiler water
supply temperature is 240ºF. Listed outputs
arebased on ASME Section VIII
Interpretation VIII-1-86-136.
Where recommendations in this manual differ
from local, or national codes, the local or national
codes take precedence.
Codes Restrictions
Single wall heat exchanger in the Excellence water
heater complies with National Standard Plumbing
Code, provided that:
– boiler water (including additives) is practically
non-toxic, having toxicity rating or class of 1,
as listed in Clinical Toxicology of Commercial
Products, and
–boiler water pressure is limited to maximum
30 psig by approved relief valve.
Single wall heat exchangers are permitted under the
Uniform Plumbing Code - Paragraph L3.2. and L3.3
if they satisfy all of the following requirements.
1. The heat transfer medium is potable water or
contains only substances which are recog-
nized as safe by the U.S. Food and Drug
Administration.
2. The pressure of the heat transfer medium is
maintained less than the normal minimum
operating pressure of the potable water system
Exception: Steam complying with sec-
tion #1 above.
3. The equipment is permanently labeled to
indicate that only additives recognized as
safe by the FDA shall be used in the heat
transfer medium.
Other heat exchanger designs may be permitted
where approved by the Administrative Authority.
Operating Restrictions
• Maximum DHW outlet temperature is
120ºF, when factory supplied mixing valve
is installed.
• Maximum boiler water temperature is
194ºF.
• Maximum working pressure for inner
(domestic water) tank is 150 psig.
•Maximum working pressure for outer
(boiler water) tank is 30 psig.
•pH and chloride limits for water heaters
are:
-chloride, less than 150 mg/l
- pH value min. 6 - max. 8
Any water conditioning system must be
installed and maintained in accordance with
manufacturer’s specifications.
Do not install the Excellence water heater on
any application if the boiler piping contains
non-oxygen barrier tubing or if the boiler
piping is considered an “open system”.
Exposing the outer tank of the Excellence
water heater to oxygen contamination will
lead to premature tank failure and denial of
the warranty.
NOTICE
NOTICE
NOTICE
Pre-Installation

4
Pre-Installation
Locating Water Heater
• The Excellence is not intended for outdoor
installations.
• Locate Excellence so that any leakage from the
tank or water connections will not cause dam-
age to the area adjoining the water heater or to
lower floors in the structure.
Recommended Clearances
The Excellence is approved for zero clearance to
combustibles, excluding vent and boiler piping.
- Vent & Boiler Piping - 1/4 inch from com-
bustible materials.
Toprovide serviceability to the unit it is rec-
ommended that the following clearances be
maintained:
Top boiler jacket - 24 inches.
Front - 24 inches.
Bottom boiler piping - 24 inches.
Rear -0inches
Sides - 6 inches
When maintaining zero clearance or less
than recommended clearances, some prod-
uct labeling may become hidden and
unreadable
When installing the Excellence in a confined
space, sufficient air must be provided for
proper combustion and venting and to
allow, under normal operating conditions,
proper air flow around the product to main-
tain ambient temperatures within safe limits
to comply with the National Fuel Gas Code
NFPA 54 - latest edition. Reference the
Excellence Boiler Manual for additional
guidelines.
Residential Garage Installations
When installing the Excellence in a residential
garage, the following special precautions per NFPA
54/ANSI Z223.1 must be taken:
- Mount the unit with a minimum 18 inches
above the floor level of the garage. Ensure
the burner and ignition devices / controls
are no less than 18 inches above the floor
level.
-Locate or protect the unit in a matter so it
cannot be damaged by a moving vehicle.
WARNING
NOTICE
BEST PRACTICES

5
Installation - Domestic Piping
Temperature & Pressure (T&P) Relief Valve
To reduce risk of excessive pressures and tem-
peratures in the water heater, install tempera-
ture and pressure protective equipment
required by local codes, but no less than a com-
bination temperature and pressure relief valve
certified by a nationally recognized testing lab-
oratory that maintains periodic inspection of
production of listed equipment or materials, as
meeting the requirements for Relief Valves and
Automatic Gas Shutoff Devices for Hot Water
Supply Systems, ANSI Z21.22. This valve must
be marked with a maximum working pressure
of the water heater.
• The Excellence water heater must be protected
with a T&P relief valve.
•Size the Excellence T&P relief valve by the
following specifications, unless they conflict
with local codes: 3/4” NPT with an AGA
Rating of 100,000 BTU/hr (Watts 100XL-8 or
equivalent).
For proper operation of the T&P and to pre-
vent the T&P from activating due to boiler
water temperature, use a T&P relief valve
with extended element. A 8” minimum
length is recommended.
Standard Installation
• Install T&P relief valve in the Auxiliary con-
nection located behind the air vent on the top of
the water heater as shown Fig. 2 page 8.
Commonwealth of Massachusetts Installation
Follow this procedure for jurisdictions requiring a
vacuum breaker to be installed on the domestic
cold water inlet.
• Install the T&P in the run (straight through leg)
of a tee located at the domestic hot water out-
let. Use a long element T&P relief valve, as
shown in Fig. 3 page 8.
T&P Relief Valve Discharge Piping
T&P relief valve discharge piping must be:
- made of material serviceable for tempera-
tures of 250ºF or greater.
- directed so that hot water flows away from
all persons.
- directed to a suitable place for disposal.
- installed so as to allow complete draining
of the T&P relief valve and discharge line.
T&P relief valve discharge piping must not be:
-excessively long. Using more than 2
elbows or 15 feet of piping can reduce dis-
charge capacity.
- directly connected to a drain. Terminate
discharge piping within 6” from drain.
Refer to local codes.
- plugged, reduced or restricted.
- subject to freezing.
Do not install any valve between T&P relief
valve and tank connection or on T&P relief
valve discharge piping. Do not plug T&P
relief valve or discharge piping. Improper
placement and piping of T&P relief valve
can cause severe personal injury, death or
substantial property damage.
WARNING
NOTICE
CAUTION

6
Installation - Domestic Piping
Drain Valve
Drain valve and fittings are supplied by others.
Standard Installation
• Install a tee connection at the domestic cold
water inlet, as shown in Fig. 4, pages 9.
• Pipe the drain piping with drain valve from
the tee connection to:
- a suitable place for disposal
or
- terminate within 12” of the floor
Commonwealth of Massachusetts Installation
•Thread a 3/4” close nipple onto the
Auxiliary connection and insert an open-
end dip tube into the Auxiliary connection
on top of water heater. As shown in Fig. 3,
page 8.
• Install a 3/4” NPT elbow to the Auxiliary
connection.
•Pipe the drain piping with drain valve from
the elbow connection to:
-asuitable place for disposal
or
-terminate within 12” of the floor
Automatic Air Vent
1. Install automatic air vent provided using
suitable pipe dope or tape in the air vent con-
nection as shown in Fig. 2 and 3 page 8.
2. Unscrew vent cap on air vent one full turn.
Leave cap unscrewed one turn for normal
venting.
Thermal Expansion
If a backflow preventer, check valve or pressure
reducing valve is piped on cold water supply piping
of water heater,install an expansion tank on cold
water supply line to prevent normal thermal expan-
sion from repeatedly forcing open T&P relief valve.
T&P relief valve is not intended for constant
duty, such as relief of pressure due to
repeated normal system expansion. Correct
this condition by installing a properly sized
expansion tank in domestic water system.
Refer to expansion tank manufacturer’s
installation instructions for proper sizing.
Water Hammer
Dishwashers, clothes washers and fast-closing pos-
itive shut-off valves incorporated in the system all
contribute to creating water shock. Install a water
hammer arrester to prevent damage to pipes and
appliances. See device manufacturer’sinstructions
for application and installation.
Water hammering within the domestic pip-
ing system can cause premature failure of
the inner tank of the water heater.This type
of failureis NOT covered under warranty.
Vacuum Breaker
Installing a vacuum breaker on the domestic cold
water outlet will prevent damage to the inner tank
if a negative pressure is developed in the domestic
supply line. See manufacturer’s instructions for
application and installation of the vacuum breaker.
General Piping
• For domestic water piping diagrams, see pages
9and 10.
• All plumbing must meet or exceed all local,
state and national plumbing codes.
• Use pipe dope or tape suitable for potable
water systems.
•Use isolation valves to isolate system compo-
nents.
NOTICE
CAUTION

7
Installation - Domestic Piping
Domestic Piping
• Union on domestic hot water outlet should be
piped at a higher elevation than domestic water
drain valve. This will make draining the water
heater easier.
• Use dielectric unions or couplings to protect
hot and cold water fittings from corrosion
when connecting dissimilar materials such as
copper and galvanized iron pipe.
• If copper pipe is used for domestic water con-
nections, first solder pipe to a threaded adapter
and then screw adapter into cold water inlet on
top of Excellence. Cold Water Inlet contains
an internal plastic dip tube which can be dam-
aged by heat from soldering.
Do not apply heat to the cold water inlet
when making sweat connections to water
heater. Sweat tubing to adapter before fit-
ting adapter to cold water inlet of heater.It
is imperative that no heat be applied to the
cold water inlet, as it contains a non metal-
lic dip tube.
•When the water supply pressure is higher than
70 psig, it is recommended to install a pressure
reducing valve on cold water supply line to
prevent water loss through T&P relief valve.
Thermostatic Mixing Valve
The Excellence is factory supplied with a thermo-
static mixing valve with built-in check valve. The
mixing valve must be installed as shown in Fig. 1.
The operating range of the thermostatic mixing is
90ºF to 120ºF.
For applications with a domestic recirculation
loop, the recirculation pump should be controlled
by an aquastat. The maximum recommended set-
ting of the aquastat is 10ºF lower than the thermo-
static mixing valve setting.
For proper operation of the thermostatic
mixing valve and to prevent potential scald-
ing hazards, the recirculation loop should
be controlled by an aquastat. DO NOT use
continuous recirculation.
Recirculation Piping
• Recirculation piping must be installed in the
cold water inlet as shown Fig. 5, page 9.
•A stainless steel or bronze circulator is recom-
mended.
Storage Tank Application
For applications requiring large volumes of domes-
tic hot water in a relative short period, the installer
may include a storage type tank (see Fig. 6 page 10)
in the domestic piping.
The installer must:
1. Relocate the thermostatic mixing valve from
the Excellence to the outlet of the storage
tank.
2. Provide recirculation from the storage tank
back to the Excellence using a bronze type
circulator.Maximum recommended recircu-
lation flow rate is 1 gpm.
DANGER
NOTICE
ColdHot
Adapter
Check Valve
Mixed
Fig. 1: Mixing Valve Assembly