Install Instructions

52 103448-02 - 6/13
A. Installation of Factory Supplied Piping and Trim
Components
Alpine (ALP) boilers have factory supplied Miscellaneous
Part Carton (P/N 102942-01 – ALP080B thru ALP210B;
102942-02 or 103676-01 – ALP285B; 102942-03 –
ALP399), which includes supply piping components,
gas piping components, Temperature & Pressure Gauge,
Pressure Relief Valve and Drain Valve. See Figure 30
“ Factory Supplied Piping and Trim Installation”.
Install these components prior to connecting boiler to
system piping as follows:
VI. Water Piping and Trim
Figure 36: Factory Supplied Piping and Trim Installation
WARNING
Failure to properly pipe boiler may result in improper operation and damage to boiler or structure.
Install boiler so that the gas ignition system components are protected from water (dripping, spraying,
rain, etc.) during boiler operation and service (circulator replacement, etc.).
Oxygen contamination of boiler water will cause corrosion of iron and steel boiler components, and can
lead to boiler failure. U.S. Boiler Company’s Standard Warranty does not cover problems caused by
oxygen contamination of boiler water or scale (lime) build-up caused by frequent addition of water.
Do not ll boiler with softened water to prevent chloride contamination.
1. Relief Valve Piping, ALP080B thru ALP210B Boiler
Models
a. Locate and remove ¾” NPT x close black nipple,
¾” NPT black tee, ¾” MPT x ¾” FPT Pressure
Relief Valve, ¾” NPT Drain Valve.
b. Install close nipple into tee branch, then, screw
the assembly into boiler left side front ¾” tapping
making sure tee run outlets are in vertical plane
and parallel to boiler side.
c. Mount ¾” MPT x ¾” FPT Pressure Relief Valve
into the tee top outlet.
d. Install Drain Valve into the tee bottom outlet.