Ace Heating Solutions Mini-Pack, Инструкция по эксплуатации и техническому обслуживанию, Страница: 10 / 100

ACE BOILER INC.
Page 9
Water Connections: See Typical piping diagram ( Page 10 and 11 ) .
Condensate:
The condensate leaving the Mini-Pack must be drained by gravity without lifts, to a vented
receiver or gravity condensate line. The receiver must be located below the level of the condensate
outlet. If not, severe damage such as water hammer and poor temperature control can occur. Increase
the drain line one size larger than the condensate opening. The condensate line must be pitched
downward a minimum of 1/8" per foot. No backpressure is allowed or warranty may become void.
Orifice Plate:
All Mini-Packs come with an orifice plate inside a union on the bonnet, which acts as a
maintenance free steam trap. If a mechanical steam trap is chosen to be installed with the unit, the orifice
plate inside the union must be removed first, before installation, for proper operation. The installer is
responsible for choosing the appropriate steam trap.
Steam Piping:
Check the steam supply pressure. The steam pressure should not exceed the maximum
pressure specified on the control valve, relief valve or the Mini-Pack Nameplate.
Relief Valve:
The relief valve discharge must be piped to a floor drain to eliminate the potential of
scalding burns. The drain line must be the same size as the relief valve outlet and have a downward
slope to insure proper drainage. The drain line termination should be visible to see discharge. Check the
relief valve nameplate. The unit's operating pressure cannot exceed that listed on the relief valve.
Electrical:
The Mini-Pack is wired for 120volts 60hz 1phase 3 amps, unless otherwise noted on the
heater nameplate. Verify the electrical supply using a voltmeter. The voltage tie-in leads are indicated on
the wiring diagram. For your safety, turn off electrical power supply at the service entrance panel before
making any electrical connections. This unit contains sensitive control components and should be
protected by a suitable commercial grade surge protection device and electrically grounded. The Mini-
Pack must be installed in accordance with the National Electric Code and all state and local codes.
Water Treatment:
Proper water treatment plays an important role in protecting the life of your investment.
Ace Boiler Inc. recommends consulting a water treatment specialist prior to start-up for recommendations
on water treatment. The Mini-Pack uses boiler steam or hot water as its heating medium. On steam
systems, boiler makeup water continuously introduces contaminants; scale forming solids, corrosive
minerals and oxygen, which can cause corrosion or scale formation inside the Mini-Pack tube bundle.
Whenever appreciable amounts of raw makeup water are continuously added to your system, we
recommend that the problem be brought to the attention of a qualified water consultant. Proper treatment
will insure longer product life and reduced maintenance.
Control Valve Air Supply Pressure:
The pneumatic controller used on the Mini-Pack requires a reliable
compressed air supply. The air supply to the control valve shall be 30 PSI. Optimum supply pressure to
the temperature controller is at least 35 PSI.
Double Safety Solenoid Valve (optional):
If so equipped, the solenoid valve discharge must be piped
to a floor drain. The drain line must be the same size as the solenoid valve outlet and have a downward
slope to insure proper drainage. The drain line termination should be visible to see discharge.