Scope of Work
Domestic Het Water System
&
oe
Replacement of the entire domestic hot water system. The current age of the systerm, tts efficiency and
difficulty in obtaining replacement parts are factors in seeking replacement
Provide mechanical labor. equipment, msulation, piping and electrical for a complete replacement working
system
Provide and install a high efficiency condensing boiler, cantrols and new boiler purnp all with an 8+ year
warranty.
Provide and install two (2) 120 gallon glass lined storage tanks, mixing valves and expansion tank.
Provide startup and training on the new system
Removal of old system
HVAC System
The current HVAC System is nearing the end of life and the coils are not producing the tonnage they were
designed for.
The existing air handlers HVAC-i and HVAC-2 shall be broken down and completely refurbished including
replacement of the fan motor with new premium high efficiency motor. all fan belts and pulleys, filters and
filter racks, heating coils, DX coils. fan shafts, fan housings and all spring isolaters. The interior of boih air
handlers shail be cleaned and the airflow rebalanced to meet the airflows specified on the as-built
documents. Refurbishment shall include manufacturer inspection and start up
The existing exterior condensing units ACCU-1 and ACCU-2, their associate4d DX coils and piping shali be
replaced with new units ulilizing R-41-A as the refrigerant. ACCU-1 and ACCU-2 shail be replaced with a
new condensing unit and provided with a new disconnect, power and controls. Both new ACCU's shall be
208 Volt, 3 Phase, 60 Hz A new DX coil is to be provided in each unit. All piping is to be insulated as per
specifications.
Provide and install new piping and new insulation and electrical as needed.
Provide and install new controls, sheet metal and balancing of the system
Provide startup and training of the new system
Removal of all old equipment.
1F80292-052919 Nashua Fire Rescue Domestic Hot Water and HVAC System Upgrades
229 Main Street » Nashua, New Hampshire 03061 » Phone (603) 589-3330 © Fax (603) 589.3233
