32
NOTICE
If using a flow switch, be sure to install
the flow switch so that the arrow on the
flow switch is pointing in the direction
of the flow.
Relie
f
valve and temperature and
pressure gauge installation
Basic steps are listed below to guide you through the
installation of the relief valve, and temperature and pressure
gauge provided with the unit.
1. Install the tee directly to the outlet connection of the
heat exchanger with the 3/4 inch fitting positioned
vertically and on the top.
2. Install the 3/4 inch close nipple in the tee. Install the
relief valve on the 3/4 inch close nipple.
3. Install the close nipple on the downstream side of
the relief valve tee (FIG. 6-1).
4. Install the tee with the 1 inch fitting positioned
vertically and on the top (FIG. 6-1).
5. Install a field provided close nipple on the downstream
side of the flow switch (if used), see FIG. 6-1.
6. Install a field provided tee with the gauge fitting
positioned vertically and on the top (FIG. 6-1).
7. Install the temperature and pressure gauge provided
with the unit into the top fitting of the tee (a bushing
may be necessary) installed in Step 6 (FIG. 6-1.)
Figure 6-1
Flow Switch, Relief Valve and Temperature and
Pressure Gauge Installation
6
Hydronic piping
Installation & Operation Manual
2000616964_000
FLOW SWITCH
TEMPERATURE AND
PRESSURE GAUGE
CLOSE NIPPLE
(FIELD PROVIDED)
RELIEF VALVE
TEE WITH 3/4" FITTING
ON TOP
CLOSE NIPPLE
(FIELD PROVIDED)
TEE WITH FITTING
ON TOP
(FIELD PROVIDED)
TEE WITH 1" FITTING
ON TOP
(FIELD PROVIDED)