Sterling 882.004400.00 Fiberglass Cooling Towers, Installation, Page 14 of, Cooling tower

Install the piping according to the piping diagrams in Figure 3 on page 14, Figure 4 on page 14, and Figure 5 on page 15.

Figure 3: Cooling Tower with Tower Reservoir Piping Diagram

Type 2 pressure gauge

Type 2 inlet

Type 2 balancing valve

TWR

P

TWR

Support piping to eliminate

Caution!	Cooling tower
Do not apply
excessive torque	Typical bottom outlet
to fittings
		3/4" constant bleed
		3/8" drain line
	NOTE: Drain line is intended to prevent
		tower freeze-up. Do not valve.
	TR
Overflow		TWS
3/4" constant	Strainer basket
bleed		Makeup
	Tower water	P
Drain	reservoir	P-1
T

load from tower casing

Bypass

TWR	Tower water return
TWS
	Tower water supply
	City water

To drain

Figure 4: Cooling Tower with Basin as Reservoir Piping Diagram

Pressure		Inlet		1/4" swing check valve
		Balancing valve		12" above highest point
gauge
				in return line
Caution!	P	TWR	3/4" constant bleed		TWR
					TWS
Do not apply
excessive torque
to fittings
Overflow		Makeup
	Cooling	City water line
	tower	Building
		exterior
Drain	Side outlet			TWS
	TR			To drain
To drain
Support piping to eliminate			Thermostat-mount
			in piping (1/2" fitting)	P
load from tower casing		TR		P-1

Bypass

Tower water return Tower water supply

City water

Fiberglass Cooling Towers Chapter 3: Installation Page 14 of 25