Introduction - Johnson Controls SABROE WHC 2.1 Installation And Operating Manual

1. Introduction

The Sabroe WHC (water heating and cooling) circulation system is designed to maintain opti-
mum cooling water temperature on heat pumps and refrigeration compressors with water-
cooled top and side covers. The system ensures a constant cooling water temperature thus
giving the compressor optimum operating conditions. The system circulates water (or glycol)
during both operation and standstill.
The WHC system is mandatory for all Sabroe heat pumps and recommended for *semi-heat
pumps and refrigeration systems, if there is risk of condensation of refrigerant in the compres-
sor at standstill.
*Semi-heat pumps are defined as SMC/CMO compressors running with TE > 10° and where
the heat on the warm side (Qc) of the compression cycle is utilised. Equipment in such sys-
tems should be handled as "heat pumps" in order to avoid undesirable condensation.
Amendments to the manual
2021.05 Version 4
• New flow switch: SIKA, VHS15M.
2019.11 Version 3
New features of Sabroe WHC 2.1:
• Pump control for supplementary supply pump
• Electric LED plug for indication of flow failure.
2019.05 Version 2
New features of Sabroe WHC 2.0:
• Separate electronic control box
• Separate heating element
• Flow alarm and high- and low-temperature alarm
• Stainless steel and brass fittings
• Increased pump capacity
• 10 bar design pressure
• Independent heating and cooling set points.
Installation and operating manual - Sabroe WHC circulation system
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Introduction
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