Ascent HydroStat 3250-EKT Parts list manual

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WARNING Frozen pipes/water damage. Central heating systems are prone to shut down as a result of power or fuel outages, safety related fault conditions or equipment failure. Installation of freeze protection monitoring or other precautions is recom-
mended for unattended dwellings in climates subject to sustain below-freezing temperatures.
WARNING Electrical shock hazard. To prevent electrical shock, death or equipment damage, disconnect power supply before
installing or servicing control. Only qualified personnel may install or service this control in
accordance with local codes and ordinances. Read instructions completely before proceeding.
CAUTION To prevent serious burns, boiler
should be thoroughly cooled before installing or
servicing control.
126 Bailey Road • North Haven, CT 06473 • [phone] • FAX [phone] • www.hydrolevel.com
MODEL 3250-EKT
Temp Limit/LWCO Control
with Thermal Targeting™
for Energy Kinetics
Ascent Combi
120 VAC Operating Voltage
PATENT NO. 8,931,708; 8,844,834;
7,891,572; others pending
INSTALLATION INSTRUCTIONS
and OPERATING MANUAL
• Saves Fuel – Features Plate Warming, On Demand and Smart Learning
hot water modes as well as Thermal Targeting™ technology and Thermal
Pre-Purge capability for heating
• Outdoor Reset Ready – Provides Outdoor Reset and Warm Weather
Shut-Down capability with the addition of Hydrolevel OS-100 Outdoor
Sensor Kit (sold separately)
• Operating Indicators – LEDs, Dynamic Display and Test Button provide
continual and on-demand status checks
• Prioritizes Domestic Hot Water – Gives priority to calls from the hot water
ow switch
• Reduces Condensation – Condensation protection for reliable cold-start
operation for both heating and hot water calls
Three Function
Design
Temperature Limit Control
Designed for cold start and tankless
coil boilers.
Low Water Cut-Off
Provides protection against potentially dan-
gerous low water conditions
when installed with the Hydrolevel
Electro-Well™ (see page 2 for details).
Boiler Reset Control
• Thermal Targeting – On-board micro-
processor adjusts boiler temperature
based on heating demand.
• Outdoor Reset Ready – Compatible with
Hydrolevel OS-100 Outdoor Sensor Kit
(sold separately) for outdoor reset and
warm weather shut-down functionality.

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IMMERSION WELLS
WIRING
Ascent HydroStat can be installed on an existing immersion well already in the boiler or on a Hydrolevel Electro-Well™
(sold separately). The low water cut-off function is automatically activated when installed on an Electro-Well™.
IMPORTANT: The control will not provide low water cut-off protection when installed on a standard immersion well.
NOTE: Do not use heat-conducting grease.
Ascent HydroStat installed
with Hydrolevel Electro-Well™
Ascent HydroStat installed
with standard immersion well
IMPORTANT: For proper operation of the low water cut-off function, there must
be a minimum of ½" clearance between the copper well tube and any surface
within the boiler.
See Electro-Well models on page 15.
NOTE: When installed on a standard immersion well, the “LWCO Active” LED will
not illuminate.
IMPORTANT Make sure that the immersion well or Electro-Well™is installed in the boiler manufacturer’s designated temperature
limit control tapping.
NOTE: If installing an Electro-Well, pipe sealing compound should be used. Teflon tape is not recommended.
IMPORTANT Sensor must be inserted all the way into the well for proper operation.
CORRECT INCORRECT
NOTE: In the case of space restrictions, the Ascent HydroStat control may be mounted in a horizontal orientation without any loss of function. Hydrolevel
recommends vertical mounting, when possible, for proper orientation of LED display.

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WIRING
WARNING Electrical shock hazard. To prevent electrical shock, death or equipment damage, disconnect power supply before installing or servicing control.

4
WIRING
WARNING Electrical shock hazard. To prevent electrical shock, death or equipment damage, disconnect power supply before installing or servicing control.

5
WIRING
WARNING Electrical shock hazard. To prevent electrical shock, death or equipment damage, disconnect power supply before installing or servicing control.
Zone valve end switches
connect to T-T

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WIRING
WARNING Electrical shock hazard. To prevent electrical shock, death or equipment damage, disconnect power supply before installing or servicing control.

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SETTING THE CONTROL
NOTE: Settings can be checked using the
TEST/SETTINGS Button. See page 11 for details.
Setting the High Limit
The high limit is factory set at 190°F. To adjust, turn the HI
TEMP Dial Auntil the desired setting is displayed. (Setting
range: 100°-220°F)
Setting the Low Limit
The low limit is designed to maintain temperature in boilers
equipped with plate heat exchange used for domestic hot
water. The low limit is factory set to 170°. Prior to adjusting,
remove the jumper (not equipped on all units) B. Then turn
the LO TEMP Dial Cclockwise until the desired temperature
is displayed. For proper operation, the low temperature limit
setting should be at least 10° below the high limit setting.
LL settings below 170°F should only be used in heat-only
boilers. For combi systems, cold start is set by adjusting
the boiler to the OP2 mode. Setting the LL under 170°F will
result in reduced or NO hot water. IMPORTANT: If low limit
temperature cannot be set above 140°F, remove jumper B.
(Setting range: OFF or 110°-200°F).
Setting the Economy Feature
The Economy Feature is factory set for a 1 zone heating
system. To adjust, turn the ECONOMY Dial Duntil the num-
ber displayed equals the number of heating zones. Do not
include indirect water heaters in the number of heating
zones. The Economy Feature conserves fuel by reducing
boiler temperature (see “How Thermal Targeting Works” on
page 8). If the heating system is unable to supply needed
heat to the house, the ECONOMY Dial should be turned to a
lower setting (example: In a three zone house, turn the dial to
2 or 1). Conversely, if the boiler provides adequate heat, add-
ed fuel savings can be achieved by selecting a higher setting
(example: 4 or 5).
Setting the Zone/Indirect Switch
The Zone/Indirect switch must be set to the “I” position.

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SYSTEM STARTUP
HOW THERMAL TARGETING WORKS
ADVANCED FEATURES
At initial start up, the Economy Feature will be set to OFF by default. The control establishes a target temperature equal to the
low limit setting (170°F by default). In OP2, or cold start mode, the control will not fire the burner until there is an active heat or hot
water call. To test the high limit shut-off function, the Economy Dial must be turned to OFF. Once tested, restore the Economy
Dial setting.
NOTE:
• Smart DHW Priority: During a call from the hot water flow switch, the control will de-energize the circulator contacts (C1/C2)
providing priority ensuring an adequate supply of domestic hot water. The control will re-energize the heat circulator when the
flow switch is no longer calling.
Thermal Targeting technology analyzes thermostat activity and continually evaluates how much heat the house requires. When it
is very cold outside, the heat demand is high and the Ascent HydroStat will raise the boiler’s Target temperature to provide need-
ed heat to the home. When the outside temperature is milder, the heat demand is lower. During these periods, the Ascent Hydro-
Stat will lower the boiler’s Target temperature – saving fuel – while continuing to provide comfort to the house.
To improve efficiency, the EK1T Ascent Combi boiler has been equipped with advanced features designed to reduce idle loss (the
energy required to keep the boiler in standby mode).
Option 1 (OP1) – Always Ready or Plate Warming – Good Efficiency, Best Hot Water Convenience
Option 2 (OP2) – Cold-start On Demand Hot Water – Best Efficiency, Good Convenience
Option 3 (OP3) – Advanced Learning – Better Efficiency, Better Convenience
Option 4 (OP4) – Advanced Learning – Better Efficiency, Even Better Convenience
Option 1 (OP1): The EK1T Ascent Combi ships in the most convenient, but less efficient mode, Option 1, or OP1. In this mode,
the boiler will maintain through the plate heat exchanger a minimum temperature (factory set to 145°F with a LL setting of 170°F)
to ensure hot water can be instantly produced at all times. This is similar the way traditional tankless coil boilers operate although
they typically maintain significantly higher temperatures than are required by the EK1T Ascent Combi. Even in this setting, signifi-
cant savings over traditional tankless coil boilers will be realized.
Option 2 (OP2): This mode is much more efficient and the boiler operates as a cold start system for heat and hot water. The
boiler will not maintain temperature (although it may be hot for a large portion of the heating season) and may not always be able
to instantly produce hot water. A hot water draw of at least 30 seconds will enable the boiler to fire. The boiler will take roughly
2-3 minutes to reach full operating temperature, during which the boiler will send out progressively warmer pulses of water as
part of its preheat and condensation protection operation. To speed preheating and reduce water use, the boiler can be activated
instantly with a ‘double pump’: Turn the hot water on and off twice in quick succession at any fixture in the house. The boiler will
recognize this as a requirement to preheat and quickly get ready to make hot water. With a ‘double pump,’ the hot water fixture
can be left off and the boiler will preheat. The Ascent Combi is well insulated and will remain hot for over 2 hours after preheating,
so after activated, the water will be ready for an extended period of time.
Option 3 (OP3): This option is a compromise between maximum efficiency and convenience. In this mode, the boiler will learn
your schedule over the course of two weeks. The boiler will automatically preheat anytime your usage pattern indicates a hot wa-
ter draw may be imminent. This mode will use more fuel than OP2, however it will provide significant savings over OP1 as long as
your schedule is reasonably consistent. If the boiler does not correctly anticipate your schedule, the same draw patterns as OP2
will activate the boiler (30 second draw or cycling the hot water faucet twice in succession).
Option 4 (OP4): This option is a compromise between maximum efficiency and convenience. Like Option 3, in this mode, the
boiler will learn your schedule over the course of two weeks in particular by identifying periods with no hot water demand like
night time hours. The boiler will automatically preheat anytime your usage pattern indicates a hot water draw may be imminent
based on any usage in the past two weeks. This mode will use more fuel than OP2 and OP3, however it will provide savings over
OP1 and is ideal if your schedule is less consistent. If the boiler does not correctly anticipate your schedule, the same draw pat-
terns as OP2 will activate the boiler (30 second draw or cycling the hot water faucet twice in succession).
SELECTING ADVANCED SETTINGS
The advanced settings can be activated using the red ‘Test/Reset’ button on the Ascent Hydrostat control. Pressing the button
will cycle through system parameters and eventually the advance settings options, displayed as options 1, 2, 3 or 4 (‘OP1’, ‘OP2’,
‘OP3’ and ‘OP4’). Pressing and holding the red button will cause the display to flash so the Option Mode may be selected. Once
the control is flashing, press the red button to cycle through OP1, OP2, OP3 and OP4 until you reach the desired setting. Releas-
ing the button for 2 seconds will select the last option displayed. The control will then return to the main temperature display.

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OPTIONAL FEATURES
NOTE: The Program Mode – Pro – is accessed by turning the
LO TEMP dial to a position just above OFF.
Thermal Pre-Purge
Thermal Pre-Purge is designed to maximize boiler efficiency. When activated, the control will supply latent heat that may remain in
the boiler from a previous run cycle to the heating zone that is now calling. The control monitors how quickly the boiler tempera-
ture is declining and activates the burner only when it determines that the latent heat is insufficient to satisfy the call. During the
purge cycle, the display will indicate Pur. This feature works with single-zone and multi-zone heating systems utilizing circulators
or zone valves. No change in wiring is needed.
To activate Thermal Pre-Purge
1. Turn the LO TEMP dial to access the Program Mode – indicated in the display as Pro
2. Turn the HI TEMP dial to select feature 1
3. Push the Test/Settings Button to turn Thermal Pre-Purge on or OFF
4. Reset LO TEMP and HI TEMP settings to desired temperatures (see page 7)
Degrees Fahrenheit or Celsius
The control has the ability to operate in degrees Fahrenheit or Celsius. When operating in Celsius, a cwill appear in the display
next to the temperature whenever the temperature is below 100 degrees.
To change between degrees Fahrenheit and degrees Celsius
1. Turn the LO TEMP dial to access the Program Mode – indicated in the display as Pro
2. Turn the HI TEMP dial to select feature 2
3. Push the Test/Settings Button to cfor Celsius or Ffor Fahrenheit
4. Reset LO TEMP and HI TEMP settings to desired temperatures (see page 7)
Manual Reset Low Water Cut-Off
The low water cut-off operation on the HydroStat can be set to operate in automatic (default) or manual reset mode. When in
manual reset mode, the control will shut-down the burner immediately when a low water condition is detected. If the low water
condition is sustained for 30 seconds, the low water light will blink, indicating that the control has locked out the burner. The con-
trol can only be reset by pushing the Test Settings button on the top of the control. The manual reset feature meets CSD-1 code
requirements.
IMPORTANT: The system must be checked by a qualified heating professional prior to resuming operation.
WARNING: DO NOT ADD WATER UNTIL THE BOILER HAS FULLY COOLED.
To activate Manual Reset LWCO mode
1. Turn the LO TEMP dial to access the Program Mode – indicated in the display as Pro
2. Turn the HI TEMP dial to select feature 3
3. Push the Test/Settings Button to Afor Automatic Reset Mode or bfor Manual Reset Mode
4. Reset LO TEMP and HI TEMP settings to desired temperatures (see page 7)
To Test the Manual Reset Feature: Press and hold the Test/Settings button located on the top of the control for 30 seconds to
simulate a low water condition. After 30 seconds, the Low Water light will blink indicating that the control is locked out. To reset
the lock-out condition, press the Test/Settings button momentarily.
Low Water Cut-Off Function
To turn off Low Water Cut-Off
1. Turn the LO TEMP dial to access the Program Mode – indicated in the display as Pro
2. Turn the HI TEMP dial to select feature 8
3. Push the Test/Settings Button to turn Low Water Cut-Off on or OFF
4. Reset LO TEMP and HI TEMP settings to desired temperatures (see page 7)
MORE OPTIONAL FEATURES ON NEXT PAGE

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OPTIONAL FEATURES continued
High Limit Differential
When the Economy feature is on, the control’s Thermal Targeting feature actively sets varying differentials based on system
conditions. This option allows for selecting a 10, 20 or 30 degree fixed differential when the Economy feature is turned OFF. These
optional differential settings are subtractive from the HIGH LIMIT setting. Note: If the Economy feature is on, this setting will be
overridden by the control’s Thermal Targeting function.
To change the high limit differential
1. Turn the LO TEMP dial to access the Program Mode –indicated in the display as Pro
2. Turn the HI TEMP dial to select feature 9
3. Push the Test/Settings Button to select a high limit differential of 10, 20, or 30
4. Reset LO TEMP and HI TEMP settings to desired temperatures (see page 7)
Restore Factory Default Settings
To restore all features to the factory default settings (see following chart for default settings)
1. Turn the LO TEMP dial to access the Program Mode – indicated in the display as Pro
2. Turn the HI TEMP dial to select feature dEF
3. Push the Test/Settings Button to Yto reset all features to the default settings.
4. Reset LO TEMP and HI TEMP settings to desired temperatures (see page 7)
Dial
Setting Feature Options Description Default Setting
1Thermal Pre-Purge OFF
on
Purge Inactive
Purge Active OFF
2Fahrenheit or Celsius F
c
Degrees Fahrenheit
Degrees Celsius F
3LWCO Manual or
Automatic Reset
A
b
Automatic Reset
Manual Reset A
4Not available
on this control
5Not available
on this control
6Not available
on this control
7Not available
on this control
8Low Water Cut-Off
Function
on
OFF
Low Water Cut-Off ON
Low Water Cut-Off OFF on
9High Limit
Differential
10
20
30
10° Differential
20° Differential
30° Differential
10
DEF Restore Factory
Defaults
Y
n
Restore Defaults
Do Not Restore Defaults n
NOTE: If the HydroStat is factory-equipped on a boiler, some options may be set differently from the default settings.
SEE PAGE 7 FOR ADDITIONAL SETTINGS

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LED LEGEND and TEST/SETTINGS BUTTON
1TEMP ACTIVE Indicates that the Ascent HydroStat
control is powered and that the temperature function is
active.
2TEMP HI TEMP Illuminates when the boiler water
temperature reaches the high limit setting. It will remain lit
until the water temperature falls 10°. The Ascent HydroStat
prevents burner operation while this LED is on. See Differen-
tial explanation on page 7.
3LWCO ACTIVE Indicates that the low water cut-off
(LWCO) function of the Ascent HydroStat is active. When the
control is installed with a Hydrolevel Electro-Well™, this LED
will be on at all times when the control is powered.
4LWCO LOW WATER Indicates that the boiler is in a
low water condition. The HydroStat control will prevent burner
operation during this condition. If the LOW WATER light is
blinking, the control has been programmed to provide lock-
out protection in the event a low water condition is detected
(see Manual Reset Low Water Cut-Off on page 9). Pressing
the TEST/SETTINGS button will reset the control.
IMPORTANT: The system must be checked by a qualified
heating professional prior to resuming operation.
WARNING: ALLOW THE BOILER TO FULLY COOL
BEFORE ADDING WATER.
5ECONOMY ACTIVE Indicates that the Thermal Target-
ing function is active and the Ascent HydroStat will reduce
boiler temperature to conserve fuel. The Economy feature
is activated using the ECONOMY dial. (See “How Thermal
Targeting Works” on page 8 for more information).
6ECONOMY TARGET When the Economy feature is
active, the Ascent HydroStat continually sets target tempera-
tures below the high limit setting to maximize fuel efficiency.
When the boiler water reaches the target temperature, the
LED illuminates and the burner will shut down. The boiler wa-
ter will continue to circulate and heat the house as long as the
thermostat call continues. The LED will stay lit until the boiler
temperature drops below the differential set point at which
point the boiler will be allowed to fire again. See Differential
explanation on page 7.
NOTE: This LED illuminates regularly during normal boiler
operation.
7TEST/SETTINGS Button
To Test Low Water Cut-Off: Press and hold the Test/Settings
button for 5 seconds. The display will read LCO.
LWCO TEST LCO
The red Low Water light should illuminate and the burner cir-
cuit (B1 and B2) should de-energize. NOTE: The control must
be installed with a Hydrolevel Electro-Well™ for low water
cut-off functionality (see page 2 for more details).
To View Current Settings: Press and release the
Test/Settings Button in short intervals to sequentially display
the following settings:
HIGH LIMIT SETTING HL
H
LOW LIMIT SETTING LL
H
ECONOMY SETTING ECO
H
OPERATING MODE OP1
H
CURRENT TARGET TEMPERATURE ooo
The display will return to boiler temperature (default) if
Test/Settings Button in not pressed for 5 seconds.
SELECTING ADVANCED SETTINGS
The advanced settings can be activated using the red ‘Test/
Reset’ button on the Ascent Hydrostat control. Pressing the
button will cycle through system parameters and eventually
the advance settings options, displayed as options 1, 2, 3 or
4 (‘OP1’, ‘OP2’, ‘OP3’ and ‘OP4’). Pressing and holding the
red button will cause the display to flash so the Option Mode
may be selected. Once the control is flashing, press the red
button to cycle through OP1, OP2, OP3 and OP4 until you
reach the desired setting. Releasing the button for 2 seconds
will select the last option displayed. The control will then
return to the main temperature display.

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MAINTENANCE
TROUBLESHOOTING
Remove the Electro-Well™from the heating system every five years and clean any scale or sediment deposits from all parts that
are exposed to the boiler water. After cleaning, reinstall the well using pipe sealing compound. Teflon tape is not recommended.
Burner Will Not Fire See Flow Chart 1, page 13
Burner Will Not Shut Down See Flow Chart 2, page 14
Temperature Display Exceeds
High Limit Setting
Under normal operation, boiler temperature will continue to rise after the control shuts off
the burner. This condition, known as “thermal stacking”, results from hot boiler surfaces
continuing to release heat into the boiler water.
No or Insufficient
Domestic Hot Water
For boilers equipped with a plate heat exchanger, make sure the low limit setting on the Hy-
droStat is set properly. NOTE: If the low limit setting is dialed fully counter clockwise, it will
shut off the low temperature maintenance feature and will function as a cold start control.
Pulsing Hot Water
Pulsing warm water means the Ascent Combi is pre-heating. This takes about two minutes
from cold start before hot water starts flowing continuously through hot water piping. Puls-
ing could also indicate the domestic water flow rate is too high and the boiler is in conden-
sation protection mode. Reduce domestic flow rate to allow the boiler to reach operating
temperature, or increase the firing rate if desired.
Low Water Light
(Red LED) is On
or Blinking
WARNING: A low water condition is a serious and potentially
dangerous condition. Do not attempt to add water to a hot boiler.
Allow the boiler to fully cool before adding water.
When Installed on an Electro-Well™
When the LOW WATER light is on, this indicates that the control is not detecting water in
the boiler. When the LOW WATER light is blinking, this indicates that the control has been
programmed to provide low water lock-out protection and is currently locked out (see Man-
ual Reset Low Water Cut-Off on page 9). Pressing the TEST/SETTINGS button after the low
water condition is resolved will reset the lock-out condition.
1. If the light is on and the heating system is filled with water, pull the sensor out of the well
and inspect it. Make sure that the metal clip is protruding enough to come in contact with
the inside of the well tube. Check that the well does not have excessive build-up of heat
transfer grease that may interfere with the clip contacting the well.
2. Remove well and examine for excessive residue build-up. Clean and re-install.
When Installed on a Standard Immersion Well
If either LWCO LED lights are illuminated and the control is installed on a standard immer-
sion well, this is a false reading caused by a loss of continuity between the sensor and the
inside of the well tube. It is recommended when the control is installed on a standard immer-
sion well, the LWCO Function be turned off (see page 9 for details).
Boiler Will Not Maintain
Low Limit Temperature
Check for overlapping high temperature setting. If the high limit setting is set below the low
limit setting, the control will default to the high limit setting and the corresponding high limit
differential setting.
House Will Not Get
or Stay Warm
1. Check for air-bound radiators.
2. Check thermostat settings including heat anticipator settings (common on non-digital
thermostats).
3. Check the Economy setting. The Economy feature, much like outdoor reset controls, low-
ers average boiler temperature and can slow or, in some cases, prevent the house from
coming up to temperature. Move to a lower setting (see “Setting the Economy Feature”
on page 7).
All LED Lights and Temp
Display are Blinking
If the LED lights and the temp display are blinking alternately, this indicates the control has
sensed a boiler temperature of 250°F. When this occurs, the control pulses the burner relay
and then shuts down and locks-out the burner. The system should be analyzed to determine
the cause of the overheating condition. Check that the sensor is inserted all the way into
the well so it can accurately sense the temperature of the boiler water. Check the load on
the burner contacts: If the load exceeds the 7.4 Amp rating, the contacts may have welded.
Correct the overloading condition and replace the control before reenergizing the system.
If the load on the contacts is below the rating, check system wiring and operation as well
as the control’s high limit setting. If the cause of the overheating is found and the system
is deemed safe, the control can be reset by removing power from the control and then re-
powering while simultaneously pressing the Test/Settings button on the top of the control. If
the cause of the overheating condition is not determined, the control should be replaced.

13

14

15
ELECTRO-WELLS™
Ascent HydroStat installed
with Electro-Well™
When installed with the Hydrolevel Electro-Well™,
Ascent HydroStat will provide both temperature and low
water cut-off functionality. If the control was supplied by
the boiler manufacturer, it was installed with an
Electro-Well™. The Electro-Well™ is available sepa-
rately for field installations.
Electro-Well™ Models
Ascent
Default

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126 Bailey Road • North Haven, CT 06473 • [phone] • FAX [phone] • www.hydrolevel.com
OUTDOOR SENSOR KIT
SPECIFICATIONS ASCENT HYDROSTAT MODEL 3250-EKT
DIMENSIONS
Hydrolevel’s optional Outdoor Sensor Kit automatically activates outdoor reset functionality and warm weather shutdown
capability when plugged in to the Ascent HydroStat control. This low cost, easy to install kit is available separately at
Hydrolevel distributors.
Part No. Description
48-140 Model OS-100 Outdoor Sensor Kit
48-145 Model OS-200 Wireless Outdoor Sensor Kit
48-3250-58 48" Replacement Temp and Low Water Sensor
Input voltage 120 VAC, 60 HZ
Burner contacts 7.4 FLA, 44.4 LRA@120 VAC
Circulator contacts 5.8 FLA, 34.8 LRA@120 VAC
Operating range – low limit Off or 110°F (43°C) - 200°F (93°C)
Operating range – high limit 100°F (38°C) - 220°F (104°C)
Operating range – differentials Automatic
Thermostat heat anticipator setting 0.2A
LIMITED MANUFACTURER’S WARRANTY
We warrant products manufactured by Hydrolevel Company to be free from defects
in material and workmanship for a period of two years from the date of manufacture
or one year from the date of installation, whichever occurs first. In the event of any
claim under this warranty or otherwise with respect to our products which is made
within such period, we will, at our option, repair or replace such products or refund
the purchase price paid to us by you for such products. In no event shall Hydrolevel
Company be liable for any other loss or damage, whether direct, indirect, incidental
or consequential. This warranty is your EXCLUSIVE remedy and shall be IN PLACE OF
any other warranty or guarantee, express or implied, including, without limitation, any
warranty of MERCHANTABILITY or fitness for a particular purpose. This warranty may
not be assigned or transferred and any unauthorized transfer or assignment thereof
shall be void and of no force or effect.