Powers HydroGuard XP Series LFSH1430, LFSH1432HL, LFSH1432DV, LFSH1434HL, LFSH1434DV Technical Instructions
Technical Instructions
Distributed By: M&M Control Service, Inc.
www.mmcontrol.com/powershome.php
800-876-0036 847-356-0566
!
WARNING
Read this Manual BEFORE using this equipment.
Failure to read and follow all safety and use infor-
mation can result in death, serious personal injury,
property damage, or damage to the equipment.
Keep this Manual for future reference.
!
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 fluctuations 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 conditions and/or 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.
IS-P-SF-SH1430-2V-HiLo
HydroGuard
®
XP Series LFSH1430
2 Valve Hi/Lo
Advanced Thermal Activation
Description n
Powers' HydroGuard® XP Series LFSH1430 Hi/Lo systems are
fully assembled factory tested systems, designed to provide
safe water throughout commercial and institutional facilities.
HydroGuard® XP Series LFSH1430 Hi/Lo systems consist of
LFMM430 and Series LFSH1430 thermostatic valves which
utilize paraffin-based actuation technology to sense and adjust
outlet temperature.
Each system includes ball valves, pressure/temperature
gauges and Powers' triple-duty checkstops. Hi/Lo systems also
include a PRV. Optional equipment include cabinets.
Operation n
WARNING
You are required to consult the local building and plumbing codes prior to installation. If the information in this
manual is not consistent with local building or plumbing
codes, the local codes should be followed. Inquire with
governing authorities for additional local requirements.
Two-valve supply fixtures feature a low capacity valve that
works in parallel with a high capacity valve. During low
demand, the low capacity valve handles the load requirements.
As the load demand is increased, the pressure reducing valve,
which is set at a certain pressure differential, will open and
allow flow through the high capacity valve to assist the low
capacity valve in meeting the increased load requirements.
Specifications n
Distributed By: M&M Control Service, Inc.
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800-876-0036 847-356-0566
Maximum Operating Pressure ............................. 125psi (861 kPa)
Maximum Hot Water Temperature ...................... 200°F (93°C)
Minimum Hot Water Supply Temp.* ................... 5°F (3°C) Above Set Point
Hot Water Inlet Temperature Range ................... 120 -180°F (49 - 82°C)
Cold Water Inlet Temperature Range ................. 40 - 80°F (4 - 27°C)
Minimum Flow** ...................................................... 0.5 gpm (1.89 lpm)
Temperature Adjustment Range *** ................... 90 - 160°F (32 - 71°C)
Listing/Compliance (Valve only) ............................ ASSE 1017, CSA B125
* With Equal Pressure
** Minimum flow when Hi/Lo valve is installed at or near hot water source recirculating
tempered water with a properly sized continuously operating recirculating pump.
*** Note: Low limit cannot be less than the cold water temperature. For best operation,
hot water should be at least 5°F (3°C) above desired set point.
Capacity n
Flow Capacity at 50-50 Mixed Ratio
Pressure Drop Across Valve
Model
LFSH1432DV
LFSH1432HL
LFSH1434DV
LFSH1434HL
Min. Flow
to ASSE 1017
2 gpm
8 lpm 231 lpm 329 lpm 466 lpm 568 lpm 697 lpm 806 lpm
1 gpm
4 lpm 254 lpm 360 lpm 507 lpm 621 lpm 761 lpm 878 lpm
2 gpm
8 lpm 318 lpm 447 lpm 632 lpm 776 lpm 950 lpm 1098 lpm
1 gpm
4 lpm 341 lpm 485 lpm 685 lpm 837 lpm 1026 lpm 1185 lpm
C
27.4
30.0
37.4
40.4
V
5psi 10psi 20psi 30psi 45psi 60psi
(34 kPa) (69 kPa) (138 kPa) (207 kPa) (310 kPa) (414 kPa)
61 gpm 87 gpm 123 gpm 150 gpm 184 gpm 213 gpm
67 gpm 95 gpm 134 gpm 164 gpm 201 gpm 232 gpm
84 gpm 118 gpm 167 gpm 205 gpm 251 gpm 290 gpm
90 gpm 128 gpm 181 gpm 221 gpm 271 gpm 313 gpm
Installation Instructions n
Prior to Installation
1. Flush all piping thoroughly before installing.
2. Make sure all ball valve handles are in "OFF" position.
3. In order to make any temperature adjustment to the valves,
you must open end-of-line fixtures to ensure you have
adequate flow across the valve.
4. Use a thermometer at the showerhead or install an in-line
thermometer at the point-of-use.
2
Set Up Procedure n
Distributed By: M&M Control Service, Inc.
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800-876-0036 847-356-0566
You must follow these procedures in order to properly adjust
your Hi/Lo System. You need flow greater than the minimum
shown in capacity table across the valve in order to set a
maximum temperature.
1. Close the low flow valve on the outlet of the low flow valve.
2. Open the ball valve at the discharge of the high flow valve.
3. Open enough fixtures to meet the minimum flow requirement
as per capacity table.
4. Set valve temperature. Refer to IS-P-LFMM430 & IS-PLFSH1430.
5. For "DV" skip to #6. For "HL" set the PRV as follows for a 15psi
differential.
a) Loosen the locknut at the top of the PRV. This must be all
the way out or you will be limiting the range of the adjustment.
b) Adjust the PRV so the outlet pressure gauge reads 15psi
less than the supply pressure gauge. Turning the adjustment
screw counterclockwise will increase the differential across
the PRV (allowing the PRV to open later).
6. Close the ball valve at the discharge of the high flow valve
and open the low flow side ball valve by rotating the handle
fully counterclockwise.
7. Open enough fixtures to meet the minimum flow requirement
as per capacity table.
8. Set the temperature for the low flow valve. Refer to
IS-P-LFMM430 & IS-P-LFSH1430.
9. Open the ball valve at the discharge of high flow valve.
Adjustment Screw
CW: Increases outlet pressure and
Lock Nut
Turn fully CCW
(counterclockwise)
before setting PRV.
Supply Pressure Gauge Outlet Pressure Gauge
decreases differential across PRV or
CCW: Decreases outlet pressure and
increases differential across PRV.
10. Open additional fixtures to create a 20psi differential
between supply and outlet pressure gauge.
11. When water is at desired outlet temperature, verify temperature remains at set point.
12. Gradually start to close fixtures to verify that the temperature remains constant through the full range of flow.
13. For any problem, refer to Troubleshooting section of
the document or contact Powers' Technical Support
Department at 1.800.669.5430 or info@powerscontrols.com.
Adjusting Individual High Flow and Low Flow Valves n
See enclosed IS-P-LFMM430 and IS-P-LFSH1430.
Troubleshooting n
What to look for if:
• Outlet temperature is too hot with low ow:
1. The maximum temperature of the low flow valve was not
properly set. Refer to Setup Procedure and reset the maximum temperature of the low flow valve.
2. The thermal actuator of the low flow valve is not working
properly. Replace accordingly to the appropriate technical
instructions (IS-P-LFSH1430 enclosed).
• Outlet temperature is too hot with a high ow:
1. The maximum temperature of a high flow valve was not
properly set. Refer to Setup Procedure and reset the maximum temperature of the high flow valve.
2. The thermal actuator of the high flow valve is not working
properly. Replace accordingly, IS-P-LFMM430 enclosed.
• Outlet temperature too low on low and high ow:
1. The hot water temperature is too low. You must have a supply temperature of at least 5°F (3°C) higher than the set temperature. Re-adjust the hot water supply.
2. The checkstops on the hot side of the valve are not fully
open, or may be stuck due to liming. Open and clean checkstops.
3. The temperature has not been set properly on the small and/
• Outlet ow drops off:
1. The differential across the PRV is set too high, so the high
2. The checkstops on the high flow valves are not fully open or
3. The system pressure varies by more than 50% of the inlet
• Outlet temperature cycles between hot and cold:
1. The differential across the PRV is set too low, so the high
2. The system pressure varies by more than 50% of the inlet
or large valve. Refer to the Setup Procedure and reset the
valves.
flow valve begins controlling the system too late and starves
the system. Refer to the Setup Procedure and decrease the
differential across PRV.
are stuck due to liming. Open and clean checkstops.
supply pressure.
flow valve begins controlling the system too early, and
therefore cycles (hunt for the set point). Refer to the Setup
Procedure and increase the differential across PRV.
supply pressure.
3
Preventative Maintenance n
Distributed By: M&M Control Service, Inc.
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800-876-0036 847-356-0566
Thermostatic water mixing valves are control devices which
must be cleaned and maintained on a regular basis.
1. Before servicing checkstops or piping, turn off the water
upstream. At least every twelve (12) months open up the
checkstops and check for the free movement of the poppet.
2. Before servicing the valve, turn off the water supply
upstream or close the checkstops. To close the checkstops,
turn the adjusting screw clockwise.
3. When opening checkstops after servicing, turn adjusting
screw counterclockwise to fully open position then turn
adjusting screw 1/2 turn clockwise for final setting.
4. Every three (3) months, check the maximum temperature
adjustments.
5. Every twelve (12) months, remove the valve bonnets and
check the internal components for freedom of movement.
Parts Kits
n
See enclosed IS-P-LFMM430 and IS-P-LFSH1430.
!
WARNING
Any changes in supply condition could effect the outlet water temperature. Check and adjust the valves
accordingly to prevent injury to the users. After completing repairs, check discharge temperature, (105°F
[41°C]). Reset if necessary. Failure to perform this
operation could result in unsafe discharge temperature, which may cause injury or death.
Warranty n
The Seller warrants that the equipment manufactured by it and covered by this order or contract is free from defects in material and workmanship and, without
charge, equipment found to be defective in material or workmanship will be repaired, or at Seller’s option replaced F.O.B. original point of shipment, if written
notice of failure is received by Seller within one (1) year after date of shipment (unless specifically noted elsewhere), provided said equipment has been properly
installed, operated in accordance with the Seller’s instructions, and provided such defects are not due to abuse or decomposition by chemical or galvanic action.
THIS EXPRESS WARRANTY IS IN LIEU OF AND EXCLUDES ALL OTHER WARRANTIES, GUARANTEES, OR REPRESENTATIONS, EXPRESS OF IMPLIED. THERE ARE
NO IMPLIED WARRANTIES OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE. The Seller assumes no responsibility for repairs made on the
Seller’s equipment unless done by the Seller’s authorized personnel, or by written authority from the Seller. The Seller makes no guarantee with respect to material
not manufactured by it.
A Watts Water Technologies Company
IS-P-SF-SH1430-2V-HiLo 1336 EDP# 6512306 © 2013 Powers
WARNING: This product contains chemicals known to the
State of California to cause cancer and birth defects or
other reproductive harm.
For more information: www.watts.com/prop65
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