Lochinvar Power Vented Gas, PVR-I Service Manual
INSTALLATION & SERVICE MANUAL
POWER VENTED GAS WATER HEATER
PVR-I&S-01
WARNING
If the information in these instructions is not followed
exactly, a fir e or explosion may result causing pr operty
damage, personal injury , or death.
FOR YOUR SAFETY
Do not store or use gasoline or other flammable,
combustible, or corrosive vapors and liquids in the
vicinity of this or any other appliance.
For your family’s comfort, safety and convenience we
recommend this water heater be installed and serviced by
a plumbing professional.
TABLE OF CONTENTS
GENERAL INFORMA TION...............................................1
INSTALLATION................................................................ 2
Locating The W ater Heater ...............................................2
Minimum Clearances .........................................................3
Venting ...........................................................................3-5
Specifications for
48 Gal (181.6 L)
65 Gal (246.0 L)
75 Gal (283.9 L) ..................................................... 6
Specifications for
40 Gal (151.4 L)
50 Gal (189.2 L) ..................................................... 9
Vent pipe preparation and joining ........................... 11
Combustion Air Supply ........................................... 12
Water Connections .................................................. 13
Gas Connections ...................................................... 14
Electrical Connections .............................................. 1 5
Wiring Diagram.........................................................15
GENERAL OPERA TION ..................................................15
Lighting and Shutdown Instructions .............................. 16
Thermostat Adjustment............................................ 17
Burner Flame Check ........................................................ 17
MAINTENANCE .............................................................17
TROUBLESHOOTING ................................................ 19-20
INST ALLA TION INSTRUCTIONS FOR POTABLE
W A TER AND SP ACE HEATING..................................... 20
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
••
neighbor’s phone. Follow the gas supplier’s
instructions.
••
• If you cannot reach your gas supplier, call
••
the fire department.
Installation and service must be performed by a
qualified installer , service agency or the gas supplier.
This water heater must be installed in accordance with local
codes or, in the absence of local codes, the National Fuel
Gas Code, ANSI Z223.1-Latest Edition) and/or in Canada
CAN/CGA B149 Installation Codes (Latest Editions). The
warranty for this water heater is in effect only when the
water heater is installed, adjusted, and operated in
accordance with these Installation and Operating
Instructions. The manufacturer will not be held liable for any
damage resulting from alteration and/or failure to comply
with these instructions.
This water heater is not design certified for installation in a
mobile home. Such an installation may create a hazardous
condition and will nullify the warranty.
CAUTION!
Incorrect operation of this appliance may create a
hazard to life and property and will nullify the warranty .
Do not use this appliance if any external part to the tank has
been submerged in water. You should contact a qualified
service technician to inspect the appliance and to replace
any part of the control system including the combination
gas control which has been submerged in water.
DANGER
Do not store or use gasoline or other flammable,
combustible, or corrosive vapors and liquids in the
vicinity of this or any other appliance.
GENERAL INFORMATION
This gas-fired water heater’s design is certified by CSA
International under the American National Standard
Z21.10.1 and CSA 4.1-M, most current editions at the time
of manufacture.
IMPORTANT
Before proceeding, please inspect the water heater and
its components for possible damage. DO NOT install
any water heater with damaged components. If damage
is evident then please contact the supplier where the
water heater was purchased or the manufacturer listed
on the rating plate for replacement parts.
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PVR-I&S-01
Make sure that you check the rating plate and combination
gas control on the water heater to be certain that the type of
gas being supplied corresponds with the marking on the
rating plate and combination gas control.
A sacrificial anode is used to extend tank life. The removal of
this anode, for any reason, will nullify the warranty. In areas
where water is unusually active, an odor may occur at the
hot water faucet due to a reaction between the sacrificial
anode and the impurities in the water. If this should happen,
an alternative anode may be purchased from the supplier
that installed this water heater. This will minimize the odor
while protecting the tank. Additionally, the water heater
should be flushed with appropriate dissolvers to eliminate
any bacteria.
INSTALLATION
Locating The Water Heater
WARNING
Water heaters are heat producing appliances. To avoid
damage or injury , do not store materials against the water
heater or vent-air intake system. Use proper care to avoid
unnecessary contact (especially by children) with the
water heater and vent-air intake components. UNDER
NO CIRCUSTANCES MUST FLAMMABLE
MATERIALS, SUCH AS GASOLINE OR PAINT
THINNER BE USED OR STORED IN THE VICINITY
OF THE WATER HEATER, VENT-AIR INTAKE
SYSTEM OR IN AN Y LOCATION FROM WHICH
FUMES COULD REACH THE W A TER HEA TER OR
VENT -AIR INT AKE SYSTEM.
DO NOT install the water heater in any location where
gasoline or flammable vapors are likely to be present.
water lines could be subjected to freezing temperatures.
Make sure the cold water pipes are not located directly
above the gas control so that condensate during humid
weather does not drip on the controls.
W ater heater corrosion and component failure can be caused
by the heating and breakdown of airborne chemical vapors.
Examples of some typical compounds that are potentially
corrosive are: spray can propellants, cleaning solvents,
refrigerator and air conditioning refrigerants, swimming pool
chemicals, calcium and sodium chloride, waxes and process
chemicals. These materials are corrosive at very low
concentration levels with little or no odor to reveal their
presence. NOTE: DAMAGE TO THE W A TER HEATER
CAUSED BY EXPOSURE TO CORROSIVE VAPORS IS
NOT COVERED BY THE WARRANTY. DO NOT
OPERA TE THE W ATER HEA TER IF EXPOSURE HAS OR
WILL OCCUR. DO NOT ST ORE ANY POTENTIALL Y
CORROSIVE COMPOUNDS IN THE VICINITY OF THE
W A TER HEATER.
The water heater must be located close enough to the outside
wall to keep the venting distance within the maximum distance
described in the installation instructions. Read the venting
section in this installation instruction manual before locating
the water heater .
WARNING
Liquefied petroleum gases/propane gas are heavier than
air and will remain at floor level if there is a leak.
Basements, crawl spaces, closets, and areas below
ground level will serve as pockets for accumulation of
leaking gas. Before lighting, smell all around the appliance
area for gas. Be sure to smell next to the floor.
IF YOU SMELL GAS
Water Heaters in residential garages must be installed so
that all burner(s) and burner ignition device(s) are located
not less than 18 inches (46 cm) above the floor and must be
located or protected to avoid physical damage. For other
installations refer to local codes. In the absence of local
codes, the water heater must be installed in compliance
with the National Fuel Gas Code, ANSI Z223.1 - (Latest
Edition) and/or in Canada, CAN/CGA B149 Installation
Codes (Latest Editions).
The location of this water heater is of the utmost importance.
Before installing this water heater, read the installation section
of these instructions. After reading these installation and
operating instructions, select a location for the water heater
where the floor is level and is easily accessible to gas and
water supply lines. DO NOT locate the water heater where
• 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
••
neighbor’s phone. Follow the gas supplier’s
instructions.
••
• If you cannot reach your gas supplier, call
••
the fire department.
DO NOT OPERATE APPLIANCE UNTIL THE
LEAKAGE IS CORRECTED!
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PVR-I&S-01
WARNING
DO NOT ATTEMPT TO LIGHT ANY GAS APPLIANCE
IF YOU ARE NOT CERT AIN OF THE FOLLOWING:
• Liquefied petroleum gases/propane gas and
natural gas have and odorant added by the gas
supplier that aids in the detection of the gas.
••
• Most people recognize this order as a “sulfur”
••
or “rotten egg” smell.
••
• Other conditions, such as “odorant fade” can
••
cause the odorant to diminish in intensity, or
“fade”, and not be as readily detectable.
••
• If you have a diminished sense of smell, or are
••
in any way unsure of the presence of gas,
immeadiately contact your gas supplier from a
neighbor’s telephone.
••
• Gas detector’s are available. Contact your gas
••
supplier , or plumbing professional, for more
information.
Minimum Clearances
WARNING
Failure to adhere to these installation and operating
instructions may create a hazard to life and property
and will nullify the warranty.
This installation must allow access to the front of the water
heater and adequate clearance must be provided for servicing
and operating this water heater. The water heater may be
installed on either a combustible or non-combustible floor.
If the water heater is to be installed directly on carpeting, it
must be installed on top of a metal or wood panel extending
beyond the full width and depth of the appliance by at least
three (3) inches (7.6 cm) in any direction or, if the appliance
is to be installed in an alcove or closet, the entire floor must
be covered by the panel. The minimum clearances to
combustibles for this water heater are: zero (0) inch (0 cm)
from the sides and rear, five (5) inches (12.7 cm) from the
front of the jacket, zero (0) inch (0 cm) from the vent
connector and fifteen (15) inches (38.1 cm) from the jacket
top.
This water heater must be located in an area where leakage
of the tank or water line connections and the combination
temperature and pressure relief valve will not result in damage
to the area adjacent to the water heater or to lower floors of
the structure. When such locations cannot be avoided, a
suitable drain pan adequately piped for proper drainage must
be installed under the water heater. The pan must not restrict
combustion air flow. The drain pan must be no greater than
1-½ inches (3.8 cm) deep and have a minimum length and
width of at least four (4) inches (10.2 cm) measured from the
jacket of the water heater . The drain pan, as described above,
can be purchased from your plumbing professional. The
drain pan must be piped to an adequate drain. The piping
must be at least 3/4 inch (1.9 cm) in diameter and pitched for
proper drainage.
It is recommended that a minimum clearance of four (4) inches
(10.2 cm) be provided on the side of the water heater for
servicing and maintenance of the combination temperature
and pressure relief valve.
This water heater MUST be installed indoors out of the
wind and weather .
Note: For California installation this water heater must be
braced, anchored, or strapped to avoid falling or moving
during an earthquake. See instructions for correct
installation procedures. Instructions may be obtained from
California Office of the State Architect, 400 P Street,
Sacramento, CA 95814.
Venting
This venting section is divided into two parts. Part I will
cover venting specifications for 48 Gal (181.6 L), 65 Gal
(246.0 L), and 75 Gal (283.9 L) models. Part II will cover
venting specifications for 40 Gal (151.4 L) and 50 gal (189.2
L) models. Refer to the rating plate located on the water
heater for correct model identification.
Figure 1 - Vent Terminal Clearances
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Canadian Installations1US Installations
2
A = Clearance above grade, veranda, 12 inches (30 cm) 12 inches (30 cm)
porch, deck or balcony
B = Clearance to window or door that may 12 inches (30 cm) 4 feet (1.2 m) below or to the side of
be opened of opening; 12 inches (30 cm) above
opening
C = Clearance to permanently closed window *b *b
D = Vertical clearance to ventilated soffit located *b *b
above the terminal within a horizontal distance
of 2 feet (61 cm) from the center line of the
terminal
E = Clearance to unventilated soffit *b *b
F = Clearance to outside corner *b *b
G = Clearance to inside corner 36 inches (91 cm)*a 36 inches (91 cm)*a
H = Clearance to each side of center line extended 3 feet (91 cm) *b
above meter/regulator assembly within a height
15 feet (4.6 m)
above the
meter/regulator
assembly
I = Clearance to service regulator vent outlet or oil 36 inches (91 cm) *b
tank vent
J = Clearance to non-mechanical air supply inlet to 12 inches (30 cm) 4 feet (1.2m) below or to side of
building or the combustion air inlet to any other opening; 12 inches (30 cm) above
appliance opening
K = Clearance to a mechanical air supply inlet 6 feet (1.83 m) 3 feet (91 cm) above if within
10 feet horizontally
L = Clearance above paved sidewalk or paved 7 feet (2.13 m)† 7 feet (2.13 m)†
driveway located on public property
M = Clearance under a veranda, porch, deck, 12 inches (30 cm) ‡ *b
or balcony
1
In accordance with the current CAN/CGA-B149 Installation Codes.
2
In accordance with the current ANSI Z223.1-(Latest edition)/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 a veranda, porch, deck or balcony is fully open on a minimum of two sides beneath the floor.
*a) A minimum clearance value determined by testing in accordance with section 2.20.
*b) “Clearance in accordance with local installation codes and the requirements of the gas supplier”.
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PVR-I&S-01
The vent system must terminate so that proper clearances
are maintained as cited in local codes or the latest edition of
the National Fuel Gas Code, ANSI Z223.1.73.4e and 7.8a, b as
follows:
1. Do not terminate near soffit vents or crawl space or
other area where condensate or vapor could create a
nuisance or hazard or cause property damage.
2. Do not terminate the exhaust vent terminal where
condensate or vapor could cause damage or could be
detrimental to the operation of regulators, relief valves,
or other equipment.
3 . Do not terminate the exhaust vent terminal over public
area or walkways where condensate or vapor can cause
nuisance or hazard.
4. The vent shall terminate a minimum of 12" (25.4 cm)
above expected snowfall level to prevent blockage of
vent termination.
Vent pipes serving power vented appliances are classified
by building codes as “vent connectors”. Required clearances
from combustible materials must be provided in accordance
with information in this manual under LOCATION OF
WATER HEATER and CLEARANCES, and with National
Fuel Gas Code and local codes.
Venting System Condensation
Condensate formation does not occur in all installations of
power vented water heaters, but should be protected against
on installations where condensation can form in the venting
system.
Formation of condensation in the venting system of Power
Vented water heaters is dependent upon installation
conditions including, but not limited to:
ambient temperature and humidity of installation location;
ambient temperature and humidity of venting space; vent
distance and slope; and product usage.
away from the water heater and to a suitable drain.
The kit comes complete with instructions for proper
installation.
Part I - Venting Specifications for:
48 Gallon (181.6 L)
65 Gallon (246.0 L)
75 Gallon (283.9 L)
NOTE: Properly sized PVC, CPVC, or ABS pipe
must be used.
This water heater is a power vented appliance and is designed
to vent its products of combustion through 3" (7.6 cm) or
4" (10.2 cm) diameter Schedule 40 (solid or cellular core)
vent pipe to the outdoors. This water heater may be either
vented horizontally through the wall or vertically through
the roof. Use a 3" (7.6 cm) to 4" (10.2 cm) reducer to connect
to the vent outlet when using 4" (10.2 cm) vent pipe. Apply
the proper cement at the joint locations. Table 1 lists the
maximum vent lengths for this water heater using 3" (7.6 cm)
vent pipe. If possible, locate the water heater so that the
venting length and number of elbows are kept to the minimum
distance necessary to reach the outside. If the installation
requires venting lengths that exceed the lengths listed for
3" (7.6 cm) vent pipe in Table 1, then use 4" (10.2 cm)
vent pipe for the vent connector. Table 2 lists the venting
distances allowed with 4" (10.2 cm) diameter vent pipe.
When venting with 4" (10.2 cm) vent pipe, use a 4" (10.2
cm) to 3" (7.6 cm) reducer to exit through the building wall
with 3" (7.6 cm) vent pipe. Use the 3" (7.6 cm) vent terminal
supplied with the water heater to terminate on the outside
of the building. If the length of 3" (7.6 cm) vent pipe
needed to go through the wall is greater than 14" (35.5 cm),
use 4" (10.2 cm) to go through the wall and reduce to
3" (7.6 cm) vent pipe immediately after exiting the outside
wall. Refer to the venting illustrations on the following pages.
Make sure the vent pipe terminal elbow fitting is at least 1"
(2.5 cm) away from the edge of the wall.
In order to effectively control condensate from adversely
affecting the mechanical components of the water heater
several methods may be employed:
1. For horizontal installations the vent pipe can be
installed with a downward slope (not less than 1/8"
(3 cm)) and away from the blower.
2 . In order to prevent condensate from draining back
into the blower (vertical or horizontal runs), an
optional condensate kit is available as a service
part. A factory supplied exhaust adapter with drain
outlet mounts directly to the blower outlet and is
secured with two hose clamps, one to the blower
and the other to the vent pipe. Plastic tubing is
provided to drain any accumulated condensate
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TABLE 1 - VENT CONNECTOR LENGTHS
FOR 3" (7.6 cm) DIAMETER VENT PIPE
Terminating
# of 90°
48, 65 gal. 75 gal.
Maximum straight
Length ft (m)
Minimum
straight ft (m)
Length
Through the Wall 1 55 (16.8) 45 (13.7) 2 (.6)
Through the Wall 2 50 (15.2) 40 (12.2) 2 (.6)
Through the Wall 3 45 (13.7) 35 (10.7) 2 (.6)
Through the Wall 4 40 (12.2) 30 (9.1) 2 (.6)
Through the Roof 0 60 (18.3) 50 (15.2) 7 (2.1)
Through the Roof 1 55 (16.8) 45 (13.7) 7 (2.1)
Through the Roof 2 50 (15.2) 40 (12.2) 7 (2.1)
Through the Roof 3 45 (13.7) 35 (10.7) 7 (2.1)
TABLE 2 -VENT CONNECTOR LENGTHS
FOR 4" (10.2 cm) DIAMETER VENT PIPE
Terminating
# of 90°
Elbows (excl.
vent term).
Maximum straight
Length ft (m)
48, 65 gal. 75 gal.
Minimum
straight ft (m)
Length
Through the Wall 1 85 (25.9) 75 (22.9) 10 (3.1)
Through the Wall 2 80 (24.4) 70 (21.3) 10 (3.1)
Through the Wall 3 75 (22.9) 65 (19.8) 10 (3.1)
Through the Wall 4 70 (21.3) 60 (18.3) 10 (3.1)
Through the Wall 5 65 (19.8) 55 (16.7) 10 (3.1)
Through the Roof 0 90 (27.4) 80 (24.4) 15 (4.6)
Through the Roof 1 85 (25.9) 75 (22.9) 15 (4.6)
Through the Roof 2 80 (24.4) 70 (21.3) 15 (4.6)
Through the Roof 3 75 (22.9) 65 (19.8) 15 (4.6)
Through the Roof 4 70 (21.3) 60 (18.3) 15 (4.6)
NOTE: When using 4" (10.2 cm) vent pipe, use a 4" (10.1 cm) to 3" (7.6 cm) reducer and exit the building wall with
3" (7.6 cm) vent pipe using the 3" (7.6 cm) 90° vent terminal supplied. Two 45° elbows are equivalent to one 90
elbow.
Figure 2
CONNECTION TO 3” (7.6 CM)
VENT PI PE
CONNECTION TO A 3” (7.6 CM) TO
4” (10.2 CM) REDUCER
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