7.Optional Controls:
a.
b.Units designed for connection to remote wall mounted thermostat shall be wired such that the operating controls are at the thermostat. The controller shall be provided with a low voltage field wiring terminal block. The con- trol scheme shall accommodate MCO or ACO heat pump thermostats with Y, G, and O outputs. An alternate controller shall be available from the factory to accommodate the Heat/Cool thermostats.
c.Motorized
d.Fresh air dampers shall be motorized with a spring return. The damper shall open when Cooling or Heating mode selection is made from the
e.Night low limit thermostats shall include a
f.Units with the
F.Electrical Requirements:
1.A control box shall be located within the unit compressor compartment and shall contain a 50 va transformer,
2.Units shall be nameplated for use with time- delay fuses or HACR circuit breakers.
3.Unit controls shall be
G.Special Features:
1.Aquazone™ Thermostat Controls (for use with remote thermostat units):
a.Programmable
b.Programmable
c.Programmable
d.Programmable
e.
2.Aquazone System Control Panel:
The panel shall coordinate, monitor, and con- trol all WSHP units and ancillary equipment including cooling towers, boilers, and system pumps.
3.
Hoses shall have a fixed MPT on one end and a swivel with an adapter on the other end. Hose kits shall be either stainless steel or galvanized.
4.Ball Valves (Brass Body):
Ball valves shall be for shutoff and balancing water flow. Valves shall be available with memory, memory stop, and pressure temperature ports.
5.Y Strainers (Bronze Body):
Strainers shall have “Y” type configuration with
abrass cap. Strainers shall have a maximum operating pressure rating of 450 psi. Strainer screen shall be made of stainless steel.
6.Solenoid Valves (Brass Body):
Valves shall provide slow operation for quiet system application.
7.Hose Kit Assemblies:
Hose kits shall include a ported ball valve with pressure temperature (P/T) plug ports, flexible stainless steel hose with swivel and nipple. Return hose includes a ball valve, preset mea- sure flow (gpm) with two P/T ports, flexible stainless steel hose with a swivel and nipple.
8.Remote Sensors:
Sensors for Aquazone
35