Geothermal System Installation, Service, and “Rescue”

For the installation of geothermal systems, please start off the process by contacting Dave Sprague in our new construction department to discuss your goals.

Some things to consider:
– How cold would you like the house to be during the summer?  We have seen customers interested in progressively colder inside temperatures – ten years ago 74 F was the norm and now folks are seeking 65 F inside.  This has a big impact on how large the geothermal field outside needs to be in order to meet the cooling setpoint when it is hottest outside.
– Will you want to open up the house when it is nice and cool outside and only turn on the air conditioning when it is really hot and humid?   This will directly impact the humidity load on the air conditioning system and how quickly you would like your home to cool down when you turn on the system – which will directly impact the size of the geothermal heat pumps needed inside.
– Will you use the house all year round?  Should the geothermal system be designed for heating and cooling?  If there is an imbalance, then the 10 year look ahead is necessary to make sure the field won’t end up too cold or too hot.
–  Is drilling possible for vertical wells?  Is there enough land area for horizontal trenches?  If space is limited is a direct exchange geothermal system the best way to go?
–  Is this a retrofit project with limited access or a new construction project before building plans have been drawn up?  Permits will be required for drilling of wells and many times for the digging of trenches.
–  Should the outside geothermal field be larger than necessary to accommodate future expansion and connecting additional heat pumps?

Please contact Marlon, our service manager, for scheduling service for your geothermal system.   Once he determines the nature of the problem, he will be able to schedule a service visit with a team of two techs (one master, one apprentice).
Some things to mention about your system when you call Marlon:
– How long has the system been operating incorrectly?
– Is the heat pump inside making different noises than it usually does?
– Is the power on at the circuit breaker panel and at the disconnect switch at the inside heat pump?
– Are the supply and return registers and grilles unobstructed?
– Is there any airflow from the system?
– Is the filter dirty or clogged?
– Is there a puddle of water under the inside heat pump?

“Rescue” Process:
Please contact Marlon and describe in what ways your geothermal system is chronically under-performing so that he can develop a “rescue” plan.   We have extensive experience with saving geothermal systems.

Please visit the following pages for see some of our recent NMD geothermal rescues:
Geo Rescue – closed loop low flow,
Geo Rescue – closed loop – system won’t cool,
Geo Rescue – closed loop and system won’t heat,
Geo Rescue – closed loop and system heats poorly,
Geo Rescue – direct exchange compressor rescue,
Geo Rescue – open loop and water become acidic.

Some things to mention might include:
– The geothermal system has never worked correctly.
– The geothermal system works well in one area of your home but not in others.
– The geothermal system worked well at one point but is no longer keeping the space at the desired temperature.
– The geothermal system is no longer reliable.

Once Marlon collects the necessary information, he will bring in Brian Nelson for consultation on the next steps.

Our goal is to be Martha’s Vineyard’s premier plumbing and HVAC shop – we appreciate the opportunity to service and install your geothermal system!