Specification Of Calorex Pro-Pac 30 | 45 | 70 | 90 | 140 Bh | Bhy - Calorex Pro-Pac 30 Technical Manual

Specifications
Calorex Pro-Pac 30 | 45 | 70 | 90 | 140 BH | BHY
Automatic hot water heat pumps
The heat pump shall be a packaged design with all necessary
refrigeration/control functions fitted within the unit as a
hermetically sealed system.
The cabinet shall be weatherproof to IP24. The machine chassis
shall be constructed of 14 gauge hot dipped galvanised steel
and all panels exposed to ambient conditions shall be 20 gauge
steel, phosphate protected and plastisol coated to RAL7038
Agate Grey (fixed panels) or RAL9002 Grey White (service
panels) semi-gloss.
The air-cooled evaporator shall be constructed from rifled
copper tube, aluminium fins and end-plates, all phenolically
coated to prevent corrosion from airborne contaminants and
salt.
The water-cooled condensers shall be of tube in shell type
constructed from copper (tube) and steel (shell). WRAS
approved condensers with 90/10 marine grade cupro-nickel
(tube) shall be available as an option. The condensers shall be
of seamless construction and the maximum working water
pressure shall be 10 bar.
The Pro-Pac 30 shall utilise a 500mm, 880rpm vertical
discharge axial owlet fan. The Pro-Pac 45 and 90 shall utilise a
710mm, 690rpm, vertical discharge, axial fan (two for the Pro-
Pac 90). The Pro-Pac 70 and 140 shall use an 800mm, 700rpm
vertical discharge, axial fan (two for the Pro-Pac 140). Fans shall
be ERP 2015 compliant FE2 owlet rated to IP 54.
The compressor shall be a fully compliant hermetic, high back
pressure, scroll unit with built in overload protection. The Pro-
Pac 90 and 140 shall utilise twin scroll compressors.
The refrigeration circuit shall utilise R134a refrigerant and
contain a sight glass, drier and expansion valve control,
reversing valve and pump down valve. Suction accumulators
shall be sized for 100% of the unit refrigerant capacity. The
refrigeration circuit shall be protected by HP, LP, thermal
overloads, MCBs, phase rotation protection and delay timers.
The refrigeration circuit shall be capable of operating in
air temperatures ranging from 10°C to 50°C and water
temperatures up to 68°C. Heating operation shall be controlled
by an integral digital water thermostat with a 4°C differential.
12
BH models shall be provided with a defrost limit thermostat to
provide automatic evaporator defrosting. BHY models shall be
provided with fully automatic reverse cycle defrost mechanism
to give operation down to -15°C air temperature.
All units are designed, assembled and individually tested in the
UK under ISO 9001:2008 accreditation.
All units are designed, assembled and individually tested
in the UK under ISO 9001:2008 accreditation.
Optional features
The following optional features shall be available on
request:
— WRAS approved cupro-nickel condensers
— Compressor soft-start
— High pressure fan
— RS485 compatible thermostat