Raypak 133-4001 Ethylene Glycol Systems, Before Start-Up, Heating Boilers, General, Motor

T & P GAUGE (NOT SHOWN)

INLET	MECHANICAL
	MODULATING
	GAS VALVES WITH
HI-LIMIT	REGULATOR

Fig. 37: General Location of Controls
START-UP	Ethylene Glycol Systems -
Before Start-Up	Heating Boilers
	Fill through filler opening on the top on the Air-X Tank
Safe lighting and other performance criteria were met	to solution desired. Always maintain solution level in
	sight glass.
with the gas manifold and control assembly provided
on the boiler when the boiler underwent tests specified
in the latest edition of ANSI Z21.13 Standard.	NOTE: Raypak recommends the use of Ethylene
General	Glycol solution only.

Before lighting up a new installation, water should be		Initial Start-Up - Pump and
flowing through the boiler. Regulator should be set to		Motor
minimum 12 PSI.
		Many pumps are now direct-drive. They have no cou-
CAUTION: Propane gas is heavier than air and		pler or bearing assembly. These pumps do not require
sinks to the ground. Exercise extreme care in light-		lubrication. Others require SAE-30 non-detergent oil to
		lubricate both the motor and the bearing assembly.
ing boiler in confined areas.
		Check pump motor for type before attempting to oil.
Filling System - Heating
		Clean dust and lint from pump and motor. Check pump
Boilers		coupler and tighten if necessary. Flush system before
		putting into operation to ensure that foreign material
Fill system with water. Purge all air from the system		does not damage pump seals.
using purge valve sequence. After system is purged of
air, lower system pressure. Open valves for normal		CAUTION: Pump must be off to check oil in bearing
system operation. Fill system through feed pressure.		assembly. Do not run pump without water in system.
Manually open air vent on the compression tank until
water appears, then close vent.
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