7.Boilers may be factory packaged with a tanMess heater coil see figure below. This coil provides

instantaneous heating of water for domestic use - if proper burner and water supply line controls are used.

Tankless coils are meant to provide domestic hot water for intermittent draws, no_J continuous flow.

IMPORTANT

Do not use a tankless coil if your water is excessively hard with

lime or other deposits which will accumulate inside the coil.

When using

a tankless

coil,

the

boiler

has

been

configured

so the

Honeywell

L8124C

Combination

 

Hi/Low Limit

Aquastat

Relay

mounts

on

a thermowell

(provided)

which needs

to be

installed in

the 3/4"

tapping on

the

tankless

coil.

 

By

mounting

the

aquastat

on the coil, the tankless

 

coil

performance

is

maximized

by making the burner respond more quickly to a call for domestic hot water. A tempering

valve (mixing

valve)

is also

recommended

 

as shown in figure below. A flow restrictor may be required

on the tankless coil inlet piping so that flow rates are matched to boiler heat input (see table below).

 

 

Boiler

 

 

Burner

Firing

Input

 

Tankless

 

 

 

 

 

 

Model

 

 

Rate

(gph)

(MBH)

Rating (gpm):_

 

 

 

 

 

 

3EW.65T

 

 

 

0.65

 

 

91

 

2.90

 

 

 

 

 

 

3EW.75T

 

 

 

0.75

 

 

105

 

3.00

 

 

 

 

 

 

3EWI.00T

 

 

 

1.00

 

 

140

 

3.25

 

 

 

 

 

 

4EW.90T

 

 

 

0.90

 

 

126

 

3.15

 

 

 

 

 

 

4EW1.25T

 

 

 

1.25

 

 

175

 

3.50

 

 

 

 

 

 

4EW1.50T

 

 

 

1.50

 

210

 

3.75

 

 

 

 

 

 

5EW1.20T

 

 

 

1.20

 

 

168

 

3.45

 

 

 

 

 

 

5EW1.75T

 

 

 

1.75

 

245

 

4.00

 

 

 

 

 

 

5EW2.00T

 

 

 

2.00

 

28O

 

4.25

 

 

 

 

:_ Gallons of water per minute heated from 40°F to 140°F with 200°F boiler water temperature, intermittent draw

UNTEM,_I[R[O HOT WAT[R

TANKLESS COIL

OUT

CENTER LINE

t

OF COLO TAp

-

L__-_'Np

12

Page 14
Image 14
Kenmore 4EW.90, 3EW.75, 3E W.65, 5EW1.75, 5EW2.00, 5EWL.20, 4EW1.50 owner manual Burner Firing

5EWL.20, 3E W.65, 4EW.90, 5EW2.00, 4EW1.50 specifications

The Kenmore lineup, featuring models 5EW1.75, 3EW.75, 4EW1.50, 5EW2.00, and 4EW.90, showcases a range of advanced technologies and features designed to enhance performance and efficiency in home appliances. These models highlight Kenmore’s commitment to innovation, aiming to meet the diverse needs of consumers for reliable and functional appliances.

The 5EW1.75 stands out with its efficient energy usage, designed for those who prioritize eco-friendliness without sacrificing performance. This model employs smart technology that optimizes energy consumption, making it not only cost-effective but also environmentally responsible. Additionally, it incorporates intuitive controls, allowing users to adjust settings easily and monitor energy levels in real-time.

Transitioning to the 3EW.75, this model focuses on durability and reliability. Constructed with high-quality materials, it promises a longer lifespan and reduced maintenance costs. The inclusion of quality components ensures consistent performance even under heavy use, appealing to families or individuals who value dependability.

The 4EW1.50, known for its versatility, features multiple settings suitable for various tasks. From quick washes to intense cycles, users can select the ideal program for their specific needs. This adaptability makes it a favorite among busy households. Coupled with a user-friendly interface, the 4EW1.50 encourages ease of use, which is a significant draw for consumers.

The 5EW2.00 takes efficiency to the next level, integrating cutting-edge washing technologies. With a focus on water conservation, this model uses advanced sensors to optimize water usage based on load size and fabric type. Additionally, its noise reduction capabilities ensure that operations remain quiet, a key factor for those in smaller living spaces.

Lastly, the 4EW.90 model blends style and function. With a sleek design, it enhances the aesthetic of any home while providing robust performance. It features modern connectivity options that allow for integration with smart home systems, bringing convenience to everyday tasks.

Together, these Kenmore models represent a balance of innovation, efficiency, and user-focused design. Whether addressing energy use, versatility, durability, or aesthetics, each model brings unique characteristics that cater to the evolving demands of consumers, solidifying Kenmore’s reputation as a leader in household appliance technology.