Installation; Required Tools & Materials; Installation & Startup Tools; Service Tools - Nyle C25W Installation, Operation, Service, Maintenance, Limited Warranty

REQUIRED ABILITY
Installation and service of the HPWH unit requires ability
equivalent to that of a qualified agency i n t he field involved.
Plumbing, ducting and
required. See Qualifications on page 10.
GENERAL
The installation must conform with these instructions and the
local code authority having jurisdiction. In the absence of local
codes, the installation must comply with the latest editions of
the National Electrical Code, ANSI/NFPA 70 or the Canadian
Electrical Code CSA C22.1. The National Electrical Code
may be ordered from: National Fire Protection Association, 1
Batterymarch Park, Quincy, MA 02269. The Canadian Electrical
Code is available from the Canadian Standards Association,
8501 East Pleasant Valley Road, Cleveland, OH 44131.
DO NOT start the HPWH unit or test the electrical system before
it is connected to the water system, purged of air and filled with
water. See Start Up on page 25.
See Features And Components on page 12 to identify
the principal components of the HPWH. (Some units will vary)
REQUIRED TOOLS AND MATERIALS
INSTALLATION & START UP TOOLS
1. All tools common to installation and service of commercial
electric water heaters such as hand tools, pipe cutter and
torch.
2. Heat transfer compound (paste) such as Honeywell part
number 107408 or equivalent.
3. Electrical switch lock out device - used to secure disconnect
switches/breaker panels while servicing.
4. Electronic thermometer including:
• Four (4) thermocouple sensors capable of measuring
surface temperatures on water or refrigerant piping up to
2 inch diameter.
• Temperature range 32°F - 210°F (0°C - 100°C).
5. Volt-Ohm Multi Meter - capable of measuring:
• AC Voltage up to 600 VAC.
• DC Voltage up to 24 VDC.
• Ohms up to 2,000,000 ohms.
• Continuity.
6. AC amp meter - capable of measuring:
• AC amperage up to 200 amps.
7. Calculator.

SERVICE TOOLS

See Qualifications on page 10 regarding regulations
and certifications required under Section 608 of the Clean Air
Act before servicing the refrigeration circuit.
1. Refrigeration manifold gauges.
2. Refrigeration charging scale.
3. Refrigeration vacuum pump.
4. Refrigerant recovery machine.
5. Refrigerant reclamation storage tank.
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INSTALLATION

electrical work are

UNIT PLACEMENT

Whether replacing existing water heating equipment or installing
the HPWH in new construction, the following critical points must
be observed: The HPWH unit:
1. Should be installed near a floor drain for condensate removal.
2. The HPWH, storage tank and water heater(s) should be
located in an area where leakage will not result in damage
to adjacent area or to lower floors in the building structure.
3. The HPWH unit must be level for proper condensate
drainage. Shim the channel type skid base, pad or floor as
necessary if levelling is required.
4. Should be installed close to the point of major hot water
usage and power supply.
5. Should be located so that hot water piping and branch circuit
wiring will be as short as possible.
Mounting Frame
The mounting frame must support the length, width, and weight
of the HPWH unit. The weight of the HPWH unit must be evenly
dispersed across the footing channels on the bottom of the unit.
See Table 1 on page 13 for unit dimensions and weights.
1. VIBRATION ISOLATORS ARE REQUIRED to prevent
transmission of mechanical vibration into the building
structure. Selection of suitable isolators should be made by a
qualified engineer.
2. Installation must meet local seismic restraint requirements.

PAD MOUNTING

The HPWH may be pad mounted. Vibration isolator mounts
MUST BE placed between the unit and the equipment pad to
prevent mechanical vibration transmitting into the building
structure. Selection of appropriate vibration isolators should be
made by a qualified engineer.
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