Table of Contents
Advertisement
Water Connections continued
plumbing inspector should be contacted on how to control this
situation.
3. After installation of the water lines, open the main water
supply valve and fill the water heater. While the water heater
is filling, open several hot water faucets to allow air to escape
from the water system. When steady streams of water flow
through the faucets, close them and check all water
connections for possible leaks.
4. NEVER OPERATE THE WATER HEATER WITHOUT
FIRST BEING CERTAIN THAT IT IS FILLED WITH
WATER.
INSTRUCTIONS FOR BOILER CONNECTIONS
The indirect-fired heater connection labeled "To Boiler Return"
should be piped to the boiler return piping as close to the boiler as
possible and especially after any flow control or check valves in
the space heating return piping. The use of a union and a shut-off
valve is recommended. The use of a flow control or check valve is
required to prevent back flow through the water heater during
operation of the space heating system. Pipe and fittings between
the boiler and indirect-fired water heater should be ¾" diameter or
larger.
Maximum boiler water supply temperature to the indirect
heat exchanger must not exceed 240°F (116°C).
CONNECT WATER BOILER SUPPLY PIPING
1. For a space heating system that utilizes ZONE VALVES, refer
to Figure 2. The indirect-fired water heater connection labeled
"FROM BOILER SUPPLY" should be piped to the boiler
supply piping. Mount the circulator making sure the flow arrow
points toward the water heater. The use of shut-off valves and
unions are recommended for future service convenience. The
use of an air separator and vent is recommended to eliminate air
in the system. Pipe and fittings between the boiler and indirect-
fired water heater must be ¾" diameter or larger.
CAUTION
20
Advertisement
Table of Contents
