Client Resources

Welcome to the CER Client Portal, your dedicated space for project information, resources and updates. Here you’ll find everything you need in one place — from key documents and guidance to important announcements and support materials.

HVAC Tips for Extreme Hot Weather

High temperatures put intense demand on cooling equipment. These steps help maintain comfort, efficiency, and reliability during heatwaves.

Keep Indoor Temperatures Stable

Avoid setting thermostats excessively low and make sure the word cool or the snowflake symbol is visible for cooling mode.
Aim for a comfortable, efficient range (typically 21–23°C) and set the fan speed to high.
Overcooling increases energy use and strain on equipment.

Ensure Good Airflow Around Indoor and Outdoor Units

Remove obstructions such as boxes, furniture, or vegetation.
Restricted airflow reduces cooling capacity and increases running costs, invest in regular maintenance.

Close Blinds and Reduce Solar Gain

Direct sunlight dramatically increases cooling load.
Use blinds, reflective films, or shading where possible.

Keep Doors and Windows Closed During Peak Heat

Prevents warm air infiltration. If that’s not possible, like in retail environments, use the door heater/curtain in fan only mode, high fan, to produce a barrier to the external high temperatures.

Helps systems maintain stable temperatures without overworking.

Consider Staggered Equipment Use

Heat‑producing equipment (ovens, printers, machinery) can overwhelm cooling systems.
Stagger usage during the hottest parts of the day.

Book Servicing

A well‑maintained system is far less likely to fail during a heatwave.
Early checks ensure refrigerant levels, coils, and fans are all operating optimally.

HVAC Tips for Extreme Cold Weather

Practical guidance for building managers, facilities teams, and tenants. HVAC systems face significant stress during periods of extreme heat or cold. Proactive management helps maintain comfort, protect assets, and reduce energy waste.

The following guidance blends practical day‑to‑day tips with technical considerations relevant to facilities managers.

Maintain Stable Indoor Temperatures

Set to heat, high fan and between 21-24oc
Heat pumps may enter frequent defrost cycles, reduce the target temperature to reduce the defrost cycles
Consistent setpoints reduce strain on compressors and minimise the risk of frozen coils

Ensure Outdoor Units Remain Clear

Remove snow and ice from around heat pumps and condensers to maintain airflow
Ice build‑up can cause high‑pressure faults or force extended defrost cycles
Make sure bins and rubbish are not stacked around the units

Switch on Over door heaters/curtains

If you must have an open-door policy, make sure the door heater is switched on, high fan, high heat mode
If conditions remain below freezing for days on end, we recommend adopting a closed-door policy temporarily, to allow the heating system to regulate the temperature adequately

Maintain Airflow and Filtration

Dirty filters reduce airflow and increase the risk of coil freeze, have regular maintenance booked in, in advance
Keep external windows and doors closed where possible