2
Rating Conditions: Cooling Indoor 27°C DB 19°C WB Outdoor 35°C DB 24°C WB Heating Indoor 20°C DB Outdoor 7°C DB 6°C WB
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Rating Conditions: Cooling Indoor 27°C DB 19°C WB Outdoor 35°C DB 24°C WB Heating Indoor 20°C DB Outdoor 7°C DB 6°C WB
Gas Heat Pump M Series - the perfect solution
when you’re short of power
SANYO has been developing GHP VRF systems since
1980, during which time we have been committed to
delivering ground-breaking technology. As a result, the
commercial range of GHP VRF systems is leading the
industry in the development of efficient and flexible
systems, making them the natural choice for commercial
projects, especially for those projects where power
restrictions apply. As you would expect, all of our gas
driven VRF systems have the highest reliability rates in
the industry and a leading customer service programme.
The M Series of gas driven VRF systems offers increased efficiency
and performance across the range. Now more powerful than
ever before, it can connect to up to 48 indoor units.
Improvements include increased part load performance,
reduced gas consumption with a Miller-cycle engine and
reduced electrical consumption from using DC fan motors.
• Up to 71kW of cooling from a maximum running capacity of 5
AMPs
• Single phase power supply across the range
• The option of natural gas or LPG as its main power source
• Free hot water! A water heat exchanger to connect to domestic
hot water systems 13-25 HP (Heat Pump only)
• Option of DX or chilled water for indoor heat exchange
• Option to connect to third party Air Handling Units
• Reduced CO
2
emissions
SANYO benefits
High-efficiency operation
13-25 HP models are equipped with a high-performance air
exchanger and a newly developed refrigerant heat exchanger
for high-efficiency operation, making them one of the most
energy-efficient solutions on the market.
Lowest nitrogen oxide emissions
The GHP VRF systems have the lowest nitrogen oxide emissions,
66% below the standard. In a pioneering development, the
SANYO GHP features a brand new lean-burn combustion
system that utilises air fuel ratio feedback control to reduce NOx
emissions to an all-time low.
SANYO GHP - the natural choice
Excellent economy
The SANYO GHP provides quick and powerful cooling/
heating and increases delivery of heat into the space by the
efficient recovery of heat from the engine cooling water,
which is injected into the refrigerant circuit.
In addition, the use of engine waste heat ensures that our gas
heat pump air conditioner requires no defrost cycle, therefore
providing continuous 100% heating performance in severe
weather conditions with an outside air temperature as low as
-20°C. During cooling mode the rejected heat from the engine is
available for use within a hot water system and can supply up to
25kW of hot water at 75 °C.
High performance
With its advanced heat exchanger design, this new GHP system
offers improved efficiency and reduced running costs, which,
coupled with improved engine management systems, have
greatly improved the system COP rating.
New electrical power generator model
The biggest breakthrough in recent GHP technology is the
launch of the ECO G Power, which provides 4.0kW of power.
That’s enough electricity to power 8 computers or other
applications.
Power supply problems?
If you are short of electrical power, gas heat pump
could be the perfect solution.
• Runs on gas and just needs single phase supply.
• Enables the building’s electrical power supply to be
used for other critical electrical demands.
• Reduces capital cost to upgrade power substations
to run heating and cooling systems.
• Reduces power loadings within a building especially
during peak periods.
• Electricity supply freed up for other uses such as IT
servers, commercial refrigeration, manufacturing,
lighting etc.
High efficiency heat exchanger
The ‘M’ series GHP continues to use a ‘hybrid’ heat exchanger for
improved efficiency. By interlacing the refrigerant coil with the
radiator carrying the coolant from the engine, the condensing
capacity and radiator performance is balanced to an optimum
level. This combination ensures the cooling efficiency drop in
cold ambient is kept to a minimum, heating performance is
down to -20
o
c and maintain a high COP.
Higher engine efficiency
By utilising a Miler-Cycle engine, the compression stroke is
reduced and therefore pumping losses are minimised. As a
result the expansion volume ratio increases and the efficiency
improves.
Miller cycle: This heat cycle has the characteristic that the closing
time for the suction valve in regard to the base engine is late.
As a result, the expansion stroke becomes relatively longer in
comparison to the compression stroke.
Refrigerant heat exchanger
By fitting a new plate heat exchanger the engine waste heat
is recovered efficiently and reused to improve performance. In
addition a proportionate control 3 way change over valve is used
for control of the engine cooling water to increase efficiency in
heating operation
Air
Exhaust
Fan
Accumulator
Compressor
How a GHP works - High performance and low operating costs by using gas fuel
Discharge of heat
absorbed from the
inside of the room
by liquefaction of
refrigerant.
Heat
Heat
Refrigerant gas
Refrigerant
liquid
Refrigerant liquid
Outdoor unit
Outdoor unit
Warm air
Warm air
Cold air
Cold air
Compressor
Gas engine
Compressor
Gas engine
Absorption of heat
from the outside air
by evaporation of
refrigerant.
Refrigerant
gas
Engine waste heat
Hot water
function
Absorption of heat from the room by
liquefaction of refrigerant.
Discharge of heat generated by
condensation of refrigerant.
Cooling
Heating
What is a GHP?
The application principle of Variable Refrigerant Flow
(VRF) systems for projects with multiple indoor unit is now
very much an integral element of the UK air conditioning
market place.
A GHP is no different in principle, however,
developed by SANYO in 1980 the GHP outdoor unit
is fitted with a combustion engine, powered by
Natural gas or LPG, to drive the refrigerant compressor.
Variable capacity is achieved via the engine speed being
altered up and down just as an inverter compressor speed
is controlled in the electric VRF equivalent. The GHP
therefore is an ideal solution where electrical power is at a
premium (or no 3 phase available) however it also boasts
a number of additional benefits/functions that are not
available on an electric equivalent
.
GHP features at a glance
• Power generation of up to 4kW on ECO G Power version
•
Up to 25kW hot water generation on all 2 pipe heat pump
versions
• Chiller module available for water based solutions
• 100% heating performance even at -20
0
c ambient
• 180% indoor connectability (Single heat pump module)
• Single phase power required through the range
