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1 - INTRODUCTION
Prior to the initial start-up of the 30RQS/30RQSY units, the people
involved should be thoroughly familiar with these instructions and
the specific project data for the installation site.
The 30RQS/30RQSY heat pumps are designed to provide a very
high level of safety and reliability making installation, start-up,
operation and maintenance easier and more secure. They will
provide safe and reliable service when operated within their
application range.
They are designed for an operating life of 15 years by assuming
a 75% utilisation factor; that is approximately 100,000 operating
hours.
The procedures in this manual are arranged in the sequence
required for machine installation, start-up, operation and
maintenance.
Be sure you understand and follow the procedures and safety
precautions contained in the instructions supplied with the
machine, as well as those listed in this guide, such as: protective
clothing such as gloves, safety glasses, safety shoes and
appropriate tools, and suitable qualifications (electrical, air
conditioning, local legislation).
To find out, if these products comply with European directives
(machine safety, low voltage, electromagnetic compatibility,
equipment under pressure, etc.) check the declarations of
conformity for these products.
1.1 - Specific aspects for 30RQSY units with
variable available pressure
30RQSY units are designed for indoor installation in a plant room.
For this type of installation cold or hot air leaving the air-cooled
air heat exchangers is discharged by the fans to the outside of
the building, using a duct system.
The suction air return can be outside or inside the room (see
chapter 3.2 - "Duct connection").
The installation of a duct system at the air heat exchanger
discharge line and in certain cases at the heat exchanger air
suction side causes a pressure drop due to the resistance caused
by the air flow.
Therefore more powerful fan motors than those used for the
30RQS units are installed in the units of this range. For each
installation of a unit installed inside a plant room the duct pressure
drops differ, depending on the duct length, duct section and
direction changes.
30RQSY units equipped with fans with available pressure are
designed to operate with air discharge ducts with maximum
pressure drops of 160 Pa.
To compensate for these pressure drops 30RQSY units are
equipped with variable-speed fans with a maximum speed of 19
r/s to ensure an optimised air flow rate.
In the cooling mode, the full-load or part-load speed is controlled
by a patented algorithm that permanently optimises the condensing
temperature to ensure the best unit energy efficiency (EER)
whatever the operating conditions and pressure drops of the
system ductwork.
In the heating mode, the full-load or part-load speed of each circuit
is fixed and at the configured maximum (range configurable from
12 r/s to 19 r/s) based on the constraints and characteristics of
the installation site. The maximum configured speed applies to
both the heating and cooling mode.
If required and for reasons that may apply at the installation site
of the 30RQSY units a maximum fan speed can be set. To do this
consult the 30RB/RQ Touch Pilot Junior control manual.
4
1.2 - Check equipment received
■ Inspect the unit for damage or missing parts. If damage is
detected, or if shipment is incomplete, immediately file a claim
with the shipping company.
■ Confirm that the unit received is the one ordered. Compare the
name plate data with the order.
■ The name plate is attached to the unit in two locations:
- on the outside on one of the unit sides
- on the control box door on the inside.
■ The unit name plate must include the following information:
- Model number - size
- CE marking
- Serial number
- Year of manufacture and pressure and leak tightness test
date
- Refrigerant used
- Refrigerant charge per circuit
- PS: Min./max. allowable pressure (high and low pressure
side)
- TS: Min./max. allowable temperature (high and low pressure
side)
- Pressure switch cut-out pressure
- Unit leak test pressure
- Voltage, frequency, number of phases
- Maximum current drawn
- Maximum power input
- Unit net weight
■ Confirm that all options ordered for on-site installation have
been delivered, and are complete and undamaged.
The unit must be checked periodically, if necessary removing
the insulation (thermal, acoustic), during its whole operating
life to ensure that no shocks (handling accessories, tools,
etc.) have damaged it. If necessary, the damaged parts must
be repaired or replaced. See also chapter "Maintenance".
1.3 - Installation safety considerations
After the unit has been received, and before it is started up, it must
be inspected for damage. Check that the refrigerant circuits are
intact, especially that no components or pipes have shifted or been
damaged (e.g. following a shock). If in doubt, carry out a leak
tightness check. If damage is detected upon receipt, immediately
file a claim with the shipping company.
Do not remove the skid or the packaging until the unit is in
its final position. These units can be moved with a fork lift
truck, as long as the forks are positioned in the right place
and direction on the unit.
More particularly, units equipped with the optional buffer tank
module can be handled by forklift in compliance with the
instructions below:
- Pick up the load as close as possible to the mast (at the heel
of the fork)
- The forks of the forklift must pass all the way under the load
- The load must be lowered down a slope in reverse, with the
mast tilted backwards
- The load must be raised up a slope in forwar gear, with the
mast tilted backwards
- In both cases, drive at low speed, applying the brakes
gradually.
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