Hayward H150FD Service & Installation Manual

Pomona, CA Clemmons, NC Nashville, TN
Tel: 908-351-5400 www.haywardpool.com
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
37
+.9"./%+,/.!$#:\N#,+]
The digital thermostat in this pool heater allows the user to lock the maximum temperature setting allowed.
This feature is useful for preventing unauthorized users from manually adjusting the temperature settings higher
than desired. On a new heater, the maximum allowed temperature lock settings are initially set at the factory to
)IRU322/PRGHDQG)IRU63$PRGH7RDGMXVWWKHVHVHWWLQJVXVHWKHIROORZLQJSURFHGXUH
1. Use the MODE button to put the heater in STANDBY mode.
2. Press and hold both the UP and DOWN buttons at the same time.
3. After 3 seconds, the thermostat enters maximum temperature lock adjustment mode.
4. The SPA indicator light illuminates and the numeric display shows the current SPA mode maximum
 WHPSHUDWXUHORFNVHWWLQJ%RWKWKH63$LQGLFDWRUOLJKWDQGWKHQXPHULFGLVSOD\ÀDVKHVUDSLGO\ZKHQLQ
adjustment mode.
 8VHWKH83DQG'2:1EXWWRQVWRVHWWKHGHVLUHGPD[LPXPWHPSHUDWXUHORFNVHWWLQJ:KHQ¿QLVKHG
press the MODE button.
6. The POOL indicator light illuminates and the numeric display shows the current POOL mode
 PD[LPXPWHPSHUDWXUHORFNVHWWLQJ%RWKWKH322/LQGLFDWRUOLJKWDQGWKHQXPHULFGLVSOD\ÀDVKHV
rapidly when in adjustment mode.
 8VHWKH83DQG'2:1EXWWRQVWRVHWWKHGHVLUHGPD[LPXPWHPSHUDWXUHORFN:KHQ¿QLVKHGSUHVV
the MODE button.
8. The heater will return to STANDBY mode
3%*/.&*.A+!Q./(,(!:.$(A,(]
7KHWHPSHUDWXUHFDQEHGLVSOD\HGLQ)DKUHQKHLWRU&HOVLXV72FKDQJHWKHGLVSOD\XVHWKH³02'(´EXWWRQ
WRSODFHWKHKHDWHULQ³67$1'%<´7KHQSUHVVDQGKROGWKH³83´DQG³02'(´EXWWRQVXQWLOWKHGLVSOD\VKRZV
WKH)&VHOHFWLRQ3UHVVWKH³'2:1´EXWWRQWRWRJJOHEHWZHHQVHOHFWLRQV7RDFFHSWWKHVHOHFWLRQSUHVVWKH
³02'(´EXWWRQ,IWKHXVHUGRHVQRWDFWWKHVHOHFWLRQZLOOEHDXWRPDWLFDOO\DFFHSWHGDIWHUVHFRQGV
*.%+A&B!9#'.:
The control continually compares the water temperature with the set point and the high limit temperature.
When the water temperature is more than 1° below the set point a call for heat is generated and a heating
cycle is initiated.
1. The control checks for open contacts at the blower vacuum switch.
2. The control energizes the blower and the igniter. The igniter heat-up time is approximately 20 seconds.
The blower is running a pre-purge cycle during this time.
3. The control checks for closed contacts at the blower vacuum switch.
4. When the igniter reaches the proper temperature a 4-second trial for ignition begins. The control opens
WKHJDVYDOYHDQGPRQLWRUVÀDPHFXUUHQW7KHLJQLWHULVWXUQHGRIIZKHQÀDPHLVVHQVHGRUDIWHUVHF-
onds.
5. The blower vacuum switch, the temperature limit switches, the vent pressure switch, the water pressure
VZLWFKWKHZDWHUWHPSHUDWXUHVHQVRUVDQGWKHÀDPHVHQVRUDUHFRQVWDQWO\PRQLWRUHGGXULQJDFDOOIRU
heat to assure the heater is operating properly.
 :KHQWKHWKHUPRVWDWLVVDWLV¿HGDQGWKHFDOOIRUKHDWHQGVWKHFRQWUROLPPHGLDWHO\GHHQHUJL]HVWKH
gas valve. Flame is extinguished.
7. The control operates the blower during a 30-second post-purge period.

Hayward H150FD Specifications

General

Brand	Hayward
Model	H150FD
Category	Swimming Pool Heater
Language	English