In the early years, it was often customary for the Client (operating end-user) to prefer to exclude the removal/disposal (of the shut-down & by-passed plant room
equipment) from a renewable energy Retrofit contract . It was by reason of a “Trust Deficit” in all new Clean-Tech Systems.
The Client usually insisted to retain the existing (by-passed) F.F. Equipment as “stand-by” on-site………………………
When anticipating a Commercial Building Retrofit Design, a facility site-visit & walk-through can lose you half a DAY….+ plus. Don’t do it YET!!
Prior to expending Consultancy Time for a Building Survey & Review of Site Energy Data, a careful prequalifying Client Check-List is necessary for a speed “filter-out” of non-starter prospects…………..
For a long-term Client relationship of Trust, we always defer to the Client’s choice of H.P. equipment with their Vendor’s supply of Brand & Model as well as their chosen Contractor. Our counselling is limited to a “most preferred” site location for the H.P. installation with a one+ meter all surround Service Space. …………..
Subject to Appraisal & Validation of item performance and durability it is “Good Practice” to upcycle within the renewable energy engineering design, , as many as possible HVAC & MEP on-site existing fittings & equipment (eg. Calorifiers & Pumps etc.) even if relocating ex the plant room to a new location (as a tangible “Value-adding” benefit to the Owner or Architect for alternative floorspace usage) ……………….
From the start, for a Retrofit site, prioritise an existing Building’s easiest passage-ways, door-widths & elevator dimensions (including elevator & floor static load limits)
This will define the LOWEST COST OPTIONS for Rigging & Access to all possible H.P. & Auxiliary equipment sizing from a 60th Level rooftop footprint or to a B3 Basement or
any in-between Plant room……………
For highest COP Performance, always source Max. Enthalpy inlet air into the ASHP by direct ducting from a Building’s interior “HOT SPOTS” A Clients Financial PBP Mandate <60months is SUPREME *But as per Design spec.: sustain each zone as positive air pressure for zero uncontrolled F/A infiltration .........
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