Powers LFLM490-10 Installation Instructions

WARNING
!
Read this Manual BEFORE using this equipment.
Failure to read and follow all safety and use information can result
in death, serious personal injury, property damage, or damage to the
equipment.
Keep this Manual for future reference.
W AR N I N G
WARNING
!
Local building or plumbing codes may require modifications to the information
provided. You are required to consult the local building and plumbing codes prior to
installation. If the information provided here is not consistent with local building or
plumbing codes, the local codes should be followed. This product must be installed by
a licensed contractor in accordance with local codes and ordinances.
WARNING
!
FAILURE TO COMPLY WITH PROPER INSTALLATION AND MAINTENANCE
INSTRUCTIONS COULD CONTRIBUTE TO THE VALVE FAILURE.
This Hot Water Master Tempering Valves cannot be used for tempering water
temperature at fixtures. Severe bodily injury (i.e., scalding or chilling) and/
or death may result depending upon system water pressure changes and/or
supply water temperature changes. ASSE standard 1016, 1069 or 1070 listed
devices should be used at fixtures to prevent possible injury.
These Hot Water Tempering Valves are designed to be installed at or near the boiler
or water heater. They are not designed to compensate for system pressure fluctua-
tions and should not be used where ASSE standard 1016, 1069 or 1070 devices are
required. These valves should never be used to provide "anti-scald" or "anti-chill"
service.
The components of the system must be of materials with a construction capable of
withstanding the high limit output temperatures of the water heating source.
WARNING
!
Need for Periodic Inspection and Yearly Maintenance: Periodic inspection and
yearly maintenance by a licensed contractor is required. Corrosive water condi-
tions, temperatures over 200°F, unauthorized adjustments or repair could render
the valve ineffective for service intended. Regular checking and cleaning of the
valve's internal components and check stops helps assure maximum life and proper
product function. Frequency of cleaning and inspection depends upon local water
conditions.
Quick-Connect Installation
To Connect
1 1 / in. (38.1mm)
2
PEX tubing only
1 / in.Pipe (12.7mm)
2
1 3 / in. (44.45mm)
4
3 / in.Pipe (19.05mm)
4
1 7 / in. (47.63mm)
8
Pipe Stiffener
1 in.Pipe (25.4mm)
Tail Piece
1. Mark pipe as shown. 2. Clean pipe end. 3. If using PEX tubing, 4. Push tubing into tail-
This is pipe insertion insert pipe stiffener
piece up to mark.
depth. (provided) into end
5. Insert collet clip.
of pipe.
To Disconnect
NOTICE
To prolong the life of the series
LFLM490 or LFLM490-10
valves, it is recommended that
Collet depressed
the hot water inlet to the valve
should be 8-10" (200-305mm)
1. Remove collet clip. 2. Depress collet.
below the hot water inlets.
3. Pull tubing from tailpiece.
WARNING
!
For valves with CPVC or PEX end connections, do not exceed the tubing manufacturers pressure and
temperature ratings. Refer to the tubing manufacturers product specifications for that information.
Repair Kit
Model Part # Description
LFLM490 490-090 Plunger/Motor Assembly
LFLM490-10 490-190 Plunger/Motor Assembly
Installation Instructions
Flush all pipes thoroughly before installation. Installation and field adjustment are the responsi-
bility of the installer.
1. Close both hot and cold water shutoff valves upstream of the tempering valve.
Collet clip
2. Bleed pressure from the system.
3. Route copper tubing or piping to fit valve dimensions.
4. For valves with Quick-Connect tailpieces refer to "Quick-Connect Installation" instructions.
5. Remove tailpieces from the valve and make sure union nuts are over the tubing/piping
Mark
before connecting to the tailpiece.
NOTICE
If soldering, remove unions and gaskets from valve body prior to soldering to prevent damage to
valve from excessive heat.
6. Flush piping again, install valve using filter gasket on hot and cold water inlets and fiber
gasket on mixed water outlet.
7. Turn on the cold and hot water. If a leak is observed, tighten connections as necessary to
stop leak before proceeding.
V acuum Relief V alve
T&P
Relief Valve
Cold
Figure 1. Domestic Hot Water Application
To Adjust Temperature (Figure 2)
LFLM490 is factory pre-set to 120°F (49°C) and
LFLM490-10 is factory set to 90°F (31°C) outlet
temperatures under the following conditions:
Cold inlet: 60° - 70°F (16 - 21°C)
Hot inlet: 140° - 145°F (60 - 63°C) Supply
Pressures: 45psi (310 kPa)
1. Let the water flow for at least two minutes to
allow supply temperature to stabilize.
2. Place a thermometer in the outlet water
stream.
3. Loosen handle screw with hex wrench.
4. Handle must be lifted 1/4" to adjust temper-
ature. Rotate handle clockwise to decrease
temperature and counter-clockwise to increase the
temperature.
5. Lower handle and tighten screw.
6. Check for outlet temperature.
NOTICE
Pressure differential between hot & cold water supplies must be less then 25%.
Troubleshooting
Fluctuating or erratic hot water temperature at fixture:
Unbalanced Pressure. Install balancing or throttling valve at the hot and cold
water supplies and adjust accordingly for demand.
Hot water backing up into cold water line:
Hot water pressure is higher than cold water pressure. Examine check valves for
dirt & debris, clean as necessary.
8" - 10"
Cannot adjust water temperature to desired temperature:
Install balancing or throttling valve at the hot and cold water
supplies and adjust accordingly for demand.
High pressure drop through the tempering valve:
LFLM490, LFLM490-10
Valve undersized. Install larger thermostatic tempering valve.
Insufficient hot water during peak demand:
Check flow requirement during peak demand period. Use larger thermostatic tem-
pering valve.
Turn
Hotter
Colder
Hex Wrench
Unscrew, Lift Cap
to Adjust
Figure 2.
Temperature Adjustment