Multi Chamber Distribution Centre

Multi Chamber Distribution Centre

When Sykes Seafoods leased a 15,000m2 warehouse for their new National Distribution Centre, Space Engineering successfully tendered and were awarded the refrigeration package.

Based in the North West of England, the facility consists of three temperature controlled chambers – one +1°C chilled chamber and two large -22°C frozen chambers.


Since the three chambers were a mix of chill and frozen with two different evaporating temperatures, and taking the environment impact into consideration, CO₂ transcritical booster packs were selected.


Based on the client specification the refrigeration packs were designed with consideration for system efficiency, safety and easy operation & maintenance.  Three identical CO2 boost packs were used with each pack taking 33% of the total refrigeration load.  On each pack, the heat reclaim is configured for warm glycol defrost and freezer room underfloor heating.


Each industrial CO₂ pack incorporates:

  • Minimum 4no LT booster reciprocating compressors (2no fixed speed & 2no variable speed).  The LT compressors operate at a saturated suction temperature of -30°C and discharge into the HT compressors at -8°C
  • Minimum 4no HT reciprocating compressors (2no fixed speed & 2no variable speed), discharging via an oil separator into an external gas cooler
  • Heat exchanger to recover waste heat to a common war glycol circuit
  • Warm glycol defrost to all evaporators


Liquid refrigerant sub-cooling loop was designed in each pack to ensure a good performance of the liquid expansion valve.  The highly efficient Bitzer LSPM compressors are used throughout.


Floor mounted coolers were selected for each of the chambers.  This negated the need for any additional structural steelwork support, and the considerable costs associated with it.

There were a number of challenges to consider, some of these being the heat reclaim, long pipe runs and plant room congestion.

  • The heat reclaim loop was specifically designed to make sure there always enough heat for warm gas defrost and underfloor heating without elevating the discharge pressure in any                    circumstance.
  • Due to very long pipe run and multiple elevations, the pipework was carefully designed for thermal expansion, oil return, minimum pressure drop etc.
  • With the congestion inside the bespoke plantroom, the plantroom ventilation was also carefully designed.


The refrigeration scope also included airlock dehumidification, ductwork and air-blade systems as well as a load shedding system.


Working to a tight programme, the refrigeration was commissioned and operational, with chambers down to temperature, for when the client needed to bring in product.

Related projects.

Air Source Heat Pumps

Air Source Heat Pumps

Our valued client approached us with the objective to decarbonise the heating systems by introducing energy efficiency improvements within their customers facility.  These energy and...

Read more
National Foodservice Distribution Centre

National Foodservice Distribution Centre

As part of a competitive tender process for a leading UK food service provider, Space Engineering were awarded the refrigeration package on a new RDC...

Read more
Multi Heat Pump Solution

Multi Heat Pump Solution

With our continued excellent working relationship with Mid Devon District Council, Space Engineering were awarded the contract to replace the gas boilers at Lords Meadow...

Read more

Contact Us

We’d love to hear from you. Please enter your details in the form below and we will get back to you.

    I would like to opt in to marketing communications

    We take your privacy seriously. We will keep your data safe and we won’t pass it on to any third parties.
    Please see our privacy policy for more details.