Winterization; Spring Start-Up - Hayward H150 Installation, Operation And Service Manual

SECTION 5. CONSUMER OPERATION & MAINTENANCE PROCEDURES
1. Periodically check the venting system on outdoor heaters. The
heater's venting areas must never be obstructed in any way
and minimum clearances must be observed to prevent restric-
tion of combustion and ventilation air. Remember shrubs grow
and in time may obstruct a heater's venting areas.
2. Check the venting on indoor heaters for looseness and pos-
sible leaks. Keep all openings for combustion and ventilation
air clear and unobstructed.
3. Keep the entire pool heater area clean and free of all debris,
combustible materials, gasoline and other flammable vapors
and liquids. Remove any leaves or paper from around the
heater.
4. Do not store chlorine, other pool chemicals, or other corro-
sives in the vicinity of the heater.
5. If heater is operating on Propane gas, Propane tank must not
fall below 30% full or damage to the heater may occur. Hay-
ward will not be responsible for heaters that soot up due to
improper gas level in tank resulting in inadequate gas volume.
6. If another appliance is added to the gas line at a later date,
consult local gas company to be sure the gas line will have
the capacity to supply both units at full capacity at the same
time.
7. Do not use the heater if any part has been under water.
Contact a qualified service technician to inspect the entire
heater and replace any part of the control system or gas valve
that was under water. If heater has been totally submerged in
water, replace the entire heater.
8. An inspection program is a good preventative maintenance
measure. Keep this manual in a safe place for future refer-
ence and also for a service technician when inspecting or
servicing heater. Additional inspection procedures to be
performed by a qualified service technician are covered in
Section VI. of this manual.

Winterization:

In moderate climate, the heater can continue to operate dur-
ing short term cold spells. Do not use the heater to maintain the
water temperature just above freezing or for freeze protection.
Care must be taken to avoid freeze-ups in the heater. When it is
used during freezing weather, the pump must run continuously.
The heater is not warranted against freeze-ups.
In regions where freezing temperatures are encountered,
all water must be drained from the heater when out of service,
to prevent damage to the heater and piping. Draining heat
exchanger is recommended as part of the season's shut-down
procedures.
A HEATER DAMAGED BY FREEZING IS NOT COVERED
UNDER THE MANUFACTURER'S WARRANTY.
Opening drain valve: (see Figure 42.)
(Above Pool Installations Only)
1. Turn heater thermostat(s) down to minimum setting. Set sys-
tem switch to "OFF" position. Turn electricity off if heater has
electronic ignition.
2. Turn heater gas valve to "OFF" position.
3. Turn manual gas valve outside of heater to off position.
4. Be sure circulating pump is off.
5. Open drain valve on front header and allow all water to drain
from heater.
6. Leave drain valve open until spring startup.
FRONT HEADER
Figure 42: Drain Valve Location

Spring start-up:

1. Inspect and clean heater, being sure heater is free of leaves
and debris prior to startup.
2. Be sure inlet and outlet piping are properly attached to the
unit and the drain valve is closed.
3. Turn filtration system pump on and allow system to run long
enough to purge all air from the lines.
4. Turn manual gas valve outside of heater to on position.
5. MILLIVOLT HEATERS: Follow heater lighting instructions for
lighting pilot and turn heater gas valve to "ON" position.
ELECTRONIC IGNITION HEATERS: Turn electricity on, fol-
low heater operating instructions and turn gas valve to the
"ON" position.
6. Set system switch to "ON" for single thermostat heaters or to
"POOL" or "SPA" position for dual thermostat heaters and turn
thermostat(s) to desired temperature setting. Keep water at a
safe temperature.
7. If operating difficulties are encountered, contact a qualified
service company for assistance.
DRAIN VALVE
25