Powers LFLM49 Series 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, RESULTING IN
INJURY AND/OR DEATH.
TO ENSURE THE ACCURATE AND RELIABLE OPERATION OF THIS PRODUCT, IT IS
ESSENTIAL TO:
• Properly design the system to minimize pressure and temperature variations.
• This valve is not factory preset and can be adjusted to deliver scalding tempera-
tures. Check outlet temperature to ensure it does not exceed 105°F (41°C).
Make sure temperature limit stop is properly re-set to maximum 105°F (41°C)
following valve maintenance or repair. Tampering with limit stop in any way may
result in scalding temperature causing serious bodily harm and/or death.
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.
NOTICE
Flush all pipes thoroughly before installation. Installation and field adjustment are the responsi-
bility of the installer.
Installation Instructions
1. Locate suitable place for the tempering valve. Valves should be accessible for service and
adjustment, and be as close to the point of use as possible.
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
below.
5. Remove tailpieces from the valve and make sure union nuts are over the tubing/piping before
connecting to the
tailpiece.
LFLM495
NOTICE
If soldering, remove Hot Cold
unions and gaskets
from valve body prior
to soldering to prevent
damage to valve from
excessive heat.
Mixed
6. Flush piping again,
install valve using
filter gasket on
hot and cold water
inlets and fiber
COLD WATER
gasket on mixed
SUPPLY
water outlet.
7. Turn on the cold
and hot water.
If any leaks are
POWERS SERIES LM495 OR
observed, tighten
Figure 2.
LFLM495 WITH INTEGRAL
connections as
CHECKS AND SCREENS
Single/Two
necessary to stop
Handle Faucet
leak before pro-
Application
ceeding.
HOT WATER SUPPLY

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
1 in.Pipe (25.4mm)
Tail Piece
1. Mark pipe as shown. 2. Clean pipe end. 3. If using PEX tubing,
This is pipe insertion insert pipe stiffener
depth. (provided) into end
of pipe.
To Disconnect
Figure 1.
Typical
ASSE 1069
Application
Collet depressed
1. Remove collet clip. 2. Depress collet.
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 #
LFLM495 495 100 Plunger/Motor Assembly

To Adjust Temperature (Figure 3)

1. Let the water flow for at least two minutes to
allow supply temperature to stabilize.
2. Place a thermometer in the outlet water
Collet clip
stream.
3. Loosen handle screw with hex wrench.
4. Handle must be lifted 1⁄4" to adjust tempera-
ture. Rotate handle clockwise to decrease
Mark temperature and counter-clockwise to
Pipe Stiffener
increase the temperature.
5. Lower handle and tighten screw.
4. Push tubing into tail-
6. Check for outlet temperature.
piece up to mark.
5. Insert collet clip.
NOTICE
Pressure Differential between Hot & Cold Water Supplies
must be less then 25%.
NOTICE
It is recommended that shutoff valve(s) be installed on the inlet(s) to facilitate service of
the LFLM495 valve.

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.
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:
Valve undersized. Install larger thermostatic tempering valve.
Description
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 3.