Manual

2
3. PIPING
3.1 All piping leading to the unit must be adequately supported to prevent excessive stress
on the unit’s piping. However, sufficient free movement is required for thermal
expansion/contraction.
3.2 Do NOT over-tighten threaded connections.
3.3 Do NOT overheat sweat connection. Use solder (95/5) with a melting temperature
below 600
o
F.
3.4 When the valve package is supplied separately for field installation, carefully follow
the schematic piping diagram and installation instructions provided with the package.
3.5 All pipes and fittings that extend beyond the drain pan MUST be insulated.
4. ELECTRICAL
4.1 All electrical connections are to be made in accordance with the National Electric
Code, state and local codes, bylaws, ordinances or the authority having jurisdiction.
Make all electrical connections inside the electric junction box by carefully
following the wiring diagram.
4.2 Adhere strictly to the electrical wiring diagram in order to avoid damage and/or
personal injury.
4.3 When the thermostat and fan switch are field supplied, the following are the minimum
electrical ratings:
- Thermostat (valve load) = 0.1A @ 115V
(0.05A @ 230V)
- Fan Motor(s) @ full load = 5A @ 115V
(2.5A @ 230V)
5. FILTER – HBP, HBE, HBR
The filter is secured with a filter retainer. To install filter, slip filter into the filter rack
and fasten it with the filter retainer.
6.
GENERAL PRECAUTIONS
After completing the installation, recheck the following:
6.1 The drain pans, fans and motors are clean of all foreign material.