Oasis Concepts PHT1AQK specifications Hot Tank Cleaning Instructions, Materials YOU will Need

b)To Remove the Reservoir Lid: it is easiest to push down slightly near the lid center and lift on each tab at the front of the lid individually. Once those have loosened, lift up on each of the other two corners so the lid lifts as straight up as possible. This will help avoid the sealing edge from catching as the lid is removed.

c)Drain the water from the reservoir by opening the cook and/or cold faucet.

d)Grasp the reservoir using the handholds on top and pull upward. Some resistance is normal because of the tight fit required at the sleeve-on-probe.

e)Slide the newly sanitized reservoir into place taking care not to touch the inside of the reservoir with bare hands.

f)Replace the reservoir lid and the cooler top.

4)Periodic replacement of the air filter assembly is required to prevent airborne contaminants from entering the reservoir. When the water filters are changed and reservoir is sanitized, it is recommended that the air filter also be replaced.

5)Periodic cleaning of the strainer inside the tube at the elbow on the mechanical float is required to maintain water flow. It can be removed from the tube for cleaning or flush water in reverse flow through the strainer. It is recommended that this be done at least as often as the filters are changed.

C)Hot Tank Cleaning Instructions

Water coolers need to be cleaned periodically to prevent mineral buildup inside the heating tank. The frequency of cleaning is determined by the quantity of minerals in the water and the amount of water used.

Hot tanks may require cleaning when:

1)Normal hot water flow appears restricted.

2)Noisy heating cycles are heard.

3)Water in the cooling tank is very warm.

4)Mineral build-up has imparted a taste to the water.

PLEASE READ AND FOLLOW ALL DIRECTIONS TO PREVENT DAMAGE TO THE UNIT AND TO THE USER.

CAUTION: Because this cleaning process involves very hot water that may scald, the use of rubber gloves is

recommended. KEEP CHILDREN AWAY.

MATERIALS YOU WILL NEED:

1)Four (4) ounces (113grams) of citric acid crystals. Critic acid crystals are available in four- ounce and fifty-pound quantities from the address at the end of this manual.

2)A pair of rubber gloves.

3)A bucket or pan with a two (2) gallon (7.5 liters) capacity.

4)A funnel with a 3/8” (10mm) max diameter at the end.

031666-011 Rev B Page 5 of 11

5)A quart (1 liter) measuring container for hot liquids.

HOT TANK CLEANING PROCEDURE

1)Unplug the service cord and turn off water supply.

2)Draw water from the hot faucet until the water is cool.

3)Remove the top and set aside the reservoir lid.

4)Place a container under the hot tank drain valve. For convenience, insert a 3/8” (10mm) OD plastic tube into the opening at the end of the black valve and turn the petcock counterclockwise or simply turn the valve’s petcock counterclockwise without the tube into the drain. Drain tank.

5)Drain an additional amount of water from the reservoir through the faucet to further expose the hot tank inlet tube opening.

6)Close hot tank drain valve.

7)Mix four (4) ounces (113 grams) of citric acid crystals with one (1) quart (1 liter) of very hot water. (Wearing rubber gloves is recommended).

8)Place a funnel inside the reservoir in the left- hand tube (in line with the hot faucet). Carefully pour the hot solution into the funnel. BE

CAREFUL NOT TO SCALD YOUR HANDS.

9)Remove the funnel and fill the reservoir with two

(2)gallons (7.5 liters) of water. Open the hot faucet to allow the hot tank to fill.

10)Place the reservoir lid on top of the reservoir.

11)Plug the service cord into the grounded fused outlet.

12)Let the unit stand for at least twenty (20) minutes.

13)Unplug the service cord.

14)TURN OFF THE HOT TANK SWITCH FOUND ON THE COLUMN SUPPORT BEHIND THE ACCESS DOOR.

15)Remove reservoir lid as before.

16)Draw water from the hot faucet until the water is no longer warm.

17)Open the hot tank drain valve and catch the water in a pan or bucket. The water will be discolored. NOTE: THIS DRAIN WATER

SHOULD BE IMMEDIATELY POURED DOWN A DRAIN TO PREVENT ACCIDENTAL SPILLING. THIS WATER WILL STAIN.

18)If sanitizing is required, see the WATER COOLER SET-UP AND PREPARATION INSTRUCTIONS in this manual. This is also a good time to sanitize the reservoir as outlined in the reservoir flushing procedure located in the filter “Installation & Service Guide”.

19)Pour at least two (2) gallons (7.5 liters) of water into the reservoir and allow this water to drain out the hot tank drain.

20)Close drain valve and replace lid making sure it snaps completely into place. CAUTION:

FAILURE TO TURN OFF HOT TANK COULD CAUSE PHYSICAL DAMAGE TO THIS UNIT.