General information
Product description
Pool heat pump models Q12/Q15/Q20/Q30/Q30-3P make
up a series of specially designed air/water heat pumps
designed for the energy-efficient heating of swimming pools.
The models have been developed and designed to suit the
Scandinavian climate by Gullberg & Jansson AB. The pool
heat pumps are designed to work with good efficiency and a
low noise level.
All models feature:
•
Titanium heat exchangers resistant to chlorine and salt
water
•
Environmentally friendly and effective coolant (R410A)
•
Grey painted steel casing
•
Digital LED control with timer
•
Temperature-controlled defrosting for an extended pool
season
•
Flow switch for safe operation and union couplings for
easy installation
Functional principle
The pool heat pumps are primarily used for heating, but can
also be used for cooling. The models are controlled via a flow
switch and in order to work the pool’s circulation pump must
be running.
The pool heat pump works with the greatest energy
efficiency when there are small differences in temperature
between the inlet and outlet. The recommendation is 1-2
degrees difference between the inlet and outlet. The water
flow is regulated via a bypass coupling. Read more about the
bypass coupling in section 2 – Installation.
All models are developed to guarantee good efficiency in
the Nordic climate. However, it is important to be aware that
the degree of efficiency is dependent on the surrounding
outdoor temperature, the air humidity and the temperature
of the pool water. The heat pump can be seen to perform
with different efficiency during different parts of the year
depending on the outdoor conditions. At the start of the
season, when the water in the pool is cold, the pool heat
pump needs to work continuously for a long period to
produce the right temperature in the pool. When the pool
water has reached the required temperature, the pool heat
pump automatically stops and starts as required. It is always
cost-effective to cover the pool when not in use, especially
at night. Approximately 60–70 % of the heat disappears from
the water surface of the pool. Covering also reduces the pool
heat pump’s running time.
The pool heat pump must always be installed outside as it
draws its energy from the surrounding air. It must be well
ventilated and must not be enclosed or in any other way
shielded in a way that impedes air circulation. The circulation
of the air between the intake and exhaust impairs efficiency.
Avoid installation close to sensitive walls, such as bedroom
walls, and take into account any local regulations pursuant to
the installation of heat pumps.
Frost or ice can form on the heat pump’s evaporator. This is
completely normal. An automatic defrosting cycle will start to
melt the ice. Once the defrosting cycle is complete, the pool
heat pump starts its standard program and continues to heat
the pool.
The models are designed for pool heating during May to
September, which can be considered as a normal pool
season. The normal range of operation of the pool heat
pump is between 5 and 40 °C for outside temperature and
between 15 and 40 °C for water temperature. The option
of using models over an extended season is available, as
pool heat pumps will continue to run even at low outdoor
temperatures. However, it is important to keep in mind that
the default defrostning parameters may need to be adjusted,
that a heating coil may need to be installed and that the
actual output power will drop as a result of the lower outdoor
temperature.
It is important to note that any heat exchangers damaged
by frost are not covered by the warranty. Decisions on winter
operation are the responsibility of the end user.
This chapter provides background information about the pool heat pumps covered in this Installation and Maintenance Guide.
Important information, warranty conditions and safety instructions are also presented here. This chapter is intended for both users
and installation engineers.
1
64
POOL
Outline diagram for installation of Q-series
Chlorinator
Sand filter
Circulation pump
