Product Brochure

These are Stiebel Eltron heat pump water heaters.
› Reduces hot water costs by up to 80%
› Optimal storage capacity and a design minimizing
booster element usage allows for both high
efciency and low operating cost
› Engineered for efciency in a wide range of
climates, with a Coefcient of Performance
typically between 3–6
› 240 V and only a single 15 A circuit breaker
› 10-year warranty backed by over 90 years
of engineering and manufacturing reliability
Ambient air temperature (°F / °C)
41 / 5 50 / 10 59 / 15
68 / 20 77 / 25 86 / 30
95 / 35 104 / 40 113 / 45
Accelera
®
220 E & 300 E Efficiency Rate
COP measured according to EN 255.3 as function of ambient air temperature
at 70% relative humidity based on 59°F / 15°C cold water temperature
Accelera
®
300 E
Accelera
®
220 E
0
1
2
3
4
5
6
7
8
Coefficient of Performance
(COP)
The condenser
The Accelera
®
220 E and 300 E have a roll-
bond wrap-around condenser because it
prevents refrigerant contamination of the water,
mitigates hard water problems (in conjunction
with the glass-lined tank), and is the best
solution for energy efficiency.
The evaporator
The coating on the Accelera
®
evaporator
protects against corrosion and also allows
quick water drainage for increased air flow and
greater heat transfer and efficiency. Because
the evaporator is self-cleaning no filter is
required. A dual-path refrigerant flow provides
cold climate performance in addition to warm
climate performance.
The cold water inlet
Even the smallest thing is not overlooked.
The cold water outlet is designed to prevent
incoming cold water from cooling the hot water
in the tank during a draw. This helps provide
the greatest possible volume of hot water
without using the booster heating element. This
feature also increases heat pump efficiency by
allowing a small cold water reservoir to remain
in the very bottom of the tank.
Large tank + single heating element
A heat pump water heater’s recovery time
is slower than a standard tank. But with the
correct balance engineered between tank size
and heat pump capacity, both efficiency and
comfort are possible. The tank in an Accelera
®
300 E is 80 gallons because we know that
is an optimal size to satisfy average annual
household hot water demand as much as
possible via the heat pump. Similarly the
Accelera
®
220 E tank is 58 gallons because it is
an optimal size for smaller households. With
both models, if more hot water is needed,
the single back-up element at the top of the
tank near the outlet ensures comfort without
sacrificing efficiency.
Cold
Air
Side
Warm
Air
Side
Liquid
refrigerant
inlet
Super-
heated
refrig-
erant
outlet
58-gal. tank
Accelera
®
220 E
80-gal. tank
Accelera
®
300
single
booster
element
Digital display
The Accelera
®
220 E and 300 E have a simple-to-operate end user
menu that is accessed through the electronic display. The display
also shows performance information, including total volume of hot
water available. Accelera
®
is “smart meter” ready and
options are accessed through the display.
Easy access for service
The entire top of an Accelera
®
220 E and 300 E can be quickly
removed for easy servicing from all sides.
Redesigned air flow
Air intake and exhaust are angled to allow opportunity for
installation in compact spaces. In addition we decreased noise by
separating the airflow from the refrigerant loop and increasing fan
diameter.
Impressed current anode corrosion protection
The Accelera
®
220 E and 300 E are equipped with an electronic anode
for maintenance-free protection instead of an anode rod. This system
also provides protection with the minimum current necessary as
opposed to a steady-on system.