Chronomite ER-120 240 3P Series Assembly, Installation And Operation Instructions - Page 7

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Your High Capacity Instant-Temp water heater has internal user serviceable parts. Contact the factory for

guidance on repair or replacement. It can be also returned to the factory for repair or replacement. Please

contact factory for return authorization. If after following the Installation Instructions, your HCH Instant-Temp

does not heat water in accordance with this literature, please check the following:

1. Check flow rate – Controlling flow rate is essential to insure proper temperature rise and heater activation.

Check Model for activation type (L), (S), and (H) and refer to Table 2 for flow switch activation points. All

relays will engage simultaneously at the activation point. If relays click on, proceed to step 2.

At 0.35 gpm, it will take approximately 17 seconds to fill a 12 oz. cup of water.

b. At 0.80 gpm, it will take approximately 7 seconds to fill a 12 oz. cup of water.

2. Check Power LED Indicator – If individual circuit board(s) LED does not illuminate check circuit breaker.

3. Low Power – Make sure of your exact voltage by using a voltmeter. You should obtain your reading off any

two box lug terminals on line side of contactor. This reading should be between 208-240v for each line

side of relay. Compare this reading against the voltage specified in Table 1.

4. Low Voltage – The percentage of reduction in voltage will result in a like reduction in temperature rise.

Note: 240v models when operated at 220v will have approximately a 15% wattage decrease.

5. Low Amperage Draw – Check amperage draw at full water flow using an Amperage probe. Please compare

your results with Table 1 to determine if the heater is operating correctly.

6. High-Limit Thermostat – Shut off power on all breakers. Remove cover. Push in reset button on each

module. Refer to Figure 1 for location(s).

7. Heater Element(s) – Shut off power on circuit breaker. Remove cover. Measure element resistance by

using an ohmmeter or multi-meter. Obtain your reading off of one termination rod with brass nut and

bottom center tap on each heater module. This reading should be between 6 and 30 ohms for each

element.

8. Length of pipe – Length of pipe run will affect time to temperature at the faucet. This HCH heater should

be mounted strategically when possible to minimize pipe length to the faucet points.

9. Check Shut-Off Valve(s) – Check inlet and outlet valves and make sure valve is open 100% to allow full

water pressure to heater. Models require a minimum of 25 PSI.

10. Freezing – Instant-Temp heaters cannot be installed in a location subject to freezing and must be

protected. Winterize if stored in a location subject to freezing. Disconnect power and the inlet/outlet

fittings. Blow air through the highest fitting to assist draining. Install RV antifreeze for protection. Failure to

winterize will result in freezing and cracking. Re-commission heater start up procedure on page 5.

11. Problems? – Call our toll-free hot line (800) 447-4962 or (626) 937-4270.

Your HC Instant-Temp water heater has been engineered and built to the highest quality standards and is

backed by a full, factory warranty. Every HC Instant-Temp water heater is guaranteed to be free from defects in

material and workmanship for a period of one (1) year from the date of purchase. The above warranty applies to

original purchaser if unit is installed following Chronomite Laboratories, Inc.'s Installation Instructions provided.

Chronomite Laboratories, Inc. will repair or exchange parts at the factory at no cost. This warranty is limited to

repairing or replacing said products which prove to be defective upon factory inspection FOB City of Industry, CA

Toll Free Technical Hotline: (800) 447-4962 Telephone: (626) 937-4270 Fax: (626)937-4279

EF revC -8/5/16

TROUBLE SHOOTING GUIDE:

Exclusive 12-Month Warranty

Chronomite Labs, Inc.

17451 Hurley Street,

City of Industry, CA 91744

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