Honeywell 238-47969-00A Manuel D’Utilisation

14 

Note:  BEFORE PROCEEDING WITH THE INSTALLATION, CLOSE THE 
MAIN WATER SUPPLY VALVE. 
After shutting off the main water supply, open a faucet to relieve the water 
line pressure to prevent any water from leaking out of the pipes while making 
the water connections to the water heater.  After the pressure has been 
relieved, close the faucet.  The COLD water inlet and HOT water outlet are 
identified on the top of the water heater.  The fittings at the cold water inlet 
and hot water outlet are dielectric waterway fittings with 3/4” NPT male 
thread.  Make the proper plumbing connections between the water heater 
and the plumbing system to the house.  Install a shut-off valve in the cold 
water supply line. 

 

 

120°F (49°C) 

More than 5 minutes 

125°F (52°C) 

1½ to 2 minutes 

130°F (54°C) 

About 30 seconds 

135°F (57°C) 

About 10 seconds 

140°F (60°C) 

Less than 5 seconds 

145°F (63°C) 

Less than 3 seconds 

150°F (66°C) 

About 1½ seconds 

155°F (68°C) 

About 1 second 

 

If sweat fittings are to be used, DO NOT apply heat to the nipples on top of 
the water heater.  Sweat the tubing to the adapter before fitting the adapter 
to the water connections.  It is imperative that heat is not applied to the 
nipples containing a plastic liner.