CHRONOMITE CM-12L Indoor Electric Tankless Water Heater Instruction Manual

**CHRONOMITE CM-12L Indoor Electric Tankless Water Heater Instruction Manual

**

REQUIRED ITEMS FOR INSTALLATION NOT SUPPLIED

• Electrical Junction Supply Box
• Electrical Supply Conduit
• Electrical Supply Wire
• Dual Outlet Angle Stop
• 3/8” Flex Hose or 3/8” O.D. Tubing (2)
• Carpenters Level
• Flat Head Screwdriver
• Phillips Head Screwdriver

SPECIFICATIONS

IMPORTANT

Before installation of heater, review electrical requirements needed for model of heater selected.

MICROPROCESSOR LIMITS TEMPERATURE INCREASE ACCORDING TO FACTORY SET TEMPERATURE

INCOMING WATER TEMPERATURE INCREASE

MODEL| VOLTAGE| ACTIVATION| .35 GPM [1.3 LPM]| 0.5 GPM [1.9 LPM]| 1.00 GPM [3.8 LPM]| 1.50 GPM [5.7 LPM]
CM-12L| 110/120| 0.20 GPM [0.75 LPM]| 28°F [16°C]| 20°F [11°C]| –| –
CM-12L| 208| 0.20 GPM [0.75 LPM]| 49°F [27°C]| 34°F [19°C]| –| –
CM-12L| 220/240| 0.20 GPM [0.75 LPM]| 56°F [31°C]| 39°F [22°C]| 20°F [11°C]| –
CM-12L| 277| 0.20 GPM [0.75 LPM]| 65°F [36°C]| 45°F [25°C]| 23°F [13°C]| –
CM-15L| 110/120| 0.20 GPM [0.75 LPM]| 35°F [19°C]| 25°F [14°C]| –| –
CM-15L| 208| 0.20 GPM [0.75 LPM]| 61°F [34°C]| 43°F [24°C]| 21°F [12°C]| –
CM-15L| 220/240| 0.20 GPM [0.75 LPM]| 70°F [39°C]| 49°F [27°C]| 25°F [14°C]| –
CM-15L| 277| 0.20 GPM [0.75 LPM]| 81°F [45°C]| 57°F [32°C]| 28°F [16°C]| –
CM-20L| 110/120| 0.20 GPM [0.75 LPM]| 47°F [26°C]| 33°F [18°C]| –| –
CM-20L| 208| 0.20 GPM [0.75 LPM]| 81°F [45°C]| 57°F [32°C]| 28°F [16°C]| –
CM-20L| 220/240| 0.20 GPM [0.75 LPM]| 90+°F [50+°C]| 66°F [37°C]| 33°F [18°C]| 22°F [11°C]
CM-20L| 277| 0.20 GPM [0.75 LPM]| 90+°F [50+°C]| 76°F [42°C]| 38°F [21°C]| 25°F [14°C]
CM-30L| 110/120| 0.20 GPM [0.75 LPM]| 70°F [40°C]| 49°F [27°C]| 25°F [14°C]| –
CM-30L| 208| 0.20 GPM [0.75 LPM]| 90+°F [50+°C]| 85°F [45°C]| 43°F [24°C]| 28°F [16°C]
CM-30L| 220/240| 0.20 GPM [0.75 LPM]| 90+°F [50+°C]| 90+°F [50+°C]| 49°F [27°C]| 33°F [18°C]
CM-30L| 277| 0.20 GPM [0.75 LPM]| 90+°F [50+°C]| 90+°F [50+°C]| 57°F [32°C]| 38°F [21°C]
CM-40L| 208| 0.20 GPM [0.75 LPM]| 90+°F [50+°C]| 90+°F [50+°C]| 57°F [32°C]| 38°F [21°C]
CM-40L| 220/240| 0.20 GPM [0.75 LPM]| 90+°F [50+°C]| 90+°F [50+°C]| 66°F [34°C]| 44°F [23°C]
CM-40L| 277| 0.20 GPM [0.75 LPM]| 90+°F [50+°C]| 90+°F [50+°C]| 76°F [42°C]| 50°F [28°C]

NOTE: BEFORE INSTALLATION, COMPARE ELECTRICAL NEEDED FOR THE MODEL OF HEATER SELECTED.

TABLE 1

MODEL| WATTAGE| VOLTAGE| AMPS| BREAKER SIZE| MODEL| WATTAGE| VOLTAGE| AMPS| BREAKER SIZE
| | | | INTERMITTENTDUTY| CONTINUOUSDUTY| | | | | INTERMITTENTDUTY| CONTINUOUSDUTY
CM-12L| 1440| 110/120| 12| 15| 15| CM-20L| 4800| 220/240| 20| 20| 30
CM-12L| 2500| 208| 12| 15| 15| CM-20L| 5540| 277| 20| 20| 30
CM-12L| 2880| 220/240| 12| 15| 15| CM-30L| 3600| 110/120| 30| 30| 40
CM-12L| 3320| 277| 12| 15| 15| CM-30L| 6240| 208| 30| 30| 40
CM-15L| 1800| 110/120| 15| 15| 20| CM-30L| 7200| 220/240| 30| 30| 40
CM-15L| 3120| 208| 15| 15| 20| CM-30L| 8310| 277| 30| 30| 40
CM-15L| 3600| 220/240| 15| 15| 20| CM-40L| 8320| 208| 40| 40| 50
CM-15L| 4150| 277| 15| 15| 20| CM-40L| 9600| 220/240| 40| 40| 50
CM-20L| 2400| 110/120| 20| 20| 30| CM-40L| 11080| 277| 40| 40| 50

INSTANT-FLOW C- MICRO SPECIFICATIONS

DIMENSIONS: 6-1/4” [159 mm] X 9-5/8” [244 mm] X 2-3/4” [70 mm] WEIGHT: 5 LBS. [2.27 Kg] MATERIALS: ALUMINUM HOUSING, CELCON WATERWAYS, NICHROME PARTS
COLOR: WHITE
PIPE FITTINGS: 3/8” COMPRESSION
OPERATING PRESSURE RATING: 25 PSI [172 kPa] MINIMUM, 80 PSI [551.6 kPa] MAXIMUM
MAXIMUM PRESSURE RATING: 150 PSI [1034.2 kPa] NO PRESSURE RELIEF VALVE NEEDED UNLESS REQUIRED BY LOCAL CODES.
MAXIMUM OPERATING TEMP: 160°F [71°C] MINIMUM OPERATING FLOW RATE: 0.20 GPM [0.76 LPM] LISTINGS: UL, HUD, IAPMO, UPC, ETL-c

FACTORY SET TEMPERATURES

104°F [40°C] 110°F [43.3°C] 120°F [48.9°C] Other temperature settings are available upon request up to160°F [71°C]. Temperature settings are not field adjustable. 110°F [43.3°C] / 120°F [48.9°C] settings are recommended with cold water mixing faucets.

HOW INSTANT-FLOW C-MICRO WORKS
The engineered plastic case houses a series of ingeniously designed coils that instantly heat water as it flows through the vessel. A unique power switch automatically applies electrical current to the coils when hot water is requested. The electrical current is not applied when the water is not in use. The microprocessor is internally preset at the factory to maintain a constant output temperature with varying flow rates.

DIMENSIONAL DATA

INSTALLATION

CAUTION

A) Turn off the circuit breaker to avoid dangerous electrical shocks.
B) Turn off the water supply.
C) Do not apply heat to inlet or outlet fittings on heater. Do not solder direct.
D) Flush supply line of all foreign material such as pipe dope, pipe chips, solder, sand, etc. before making up supply connections after working on water piping.

FIGURE 1 INSTALLATION LAYOUT

1. Chronomite Instant-Flow C-Micro See page 2 for selection
2. Electrical Junction Supply Box (optional) 2095-1 Disconnect Switch (optional)
3. Electrical Supply Conduit
4. Electrical Supply Wire
5. Dual outlet stop 3/8” Comp Outlet Connections
6. Fittings (supplied) 3/8” Comp x 1/4” NPT
7. Faucet Supply Inlet Hoses 3/8” NPS
8. Flow Control (supplied) Dual Threads 15/16” Male and 55/64” Female

HEATER INSTALLATION

1. Remove cover off of Water Heater. Attach conduit to the conduit connection punching. Then feed wires. Do not attach wiring.
2. Mount unit horizontally against the wall so the silver label reads correctly (See Figure 1). Use level to ensure unit is level and mount with four screws through the flanges located on each corner using molly anchors or fasteners.
3. Connect plumbing. Use female 1/4” NPT or hose with 3/8” compression at cold water inlet and hot water outlet to 3/8” compression faucet inlet connections (See Figure 1). DO NOT APPLY HEAT TO THESE FITTINGS.
4. Run water through the unit to expel all air bubbles. Cycle hot side of faucet 10 times to assist in removing air bubbles. Check for leaks at all fitting joints. If no leaks proceed to electrical installation.

CAUTION: HEATING ELEMENTS MAY BURN OUT IF UNIT IS NOT MOUNTED HORIZONTALLY

ELECTRICAL INSTALLATION

1. Connect power supply wires appropriately sized and protected by circuit breaker to the input terminals on the heater (hard wired) as shown in the Figure 2 wiring diagram.
2. Refer to Table 1 above on Page 2 for the voltage and amperage of the supply power.
3. Ensure each wire L2/N, G, L1 are connected to the respective terminals. Only connect to rated voltage on nameplate.
4. Ensure water inlet valve to heater is fully open. Do not throttle inlet
5. Turn on circuit breaker. Turn on water flow to exceed activation point listed in chart 2. The unit is almost ready for use. Shut off circuit breaker.
6. Check for leaks at all fitting joints and also inside heater.
7. Install cover. Turn on circuit breaker. Unit is now ready for use.
8. Local plumbing and electrical codes must be followed in this installation of water heater and the accessories.

NOTES:

1. Failure to comply with code requirements voids the warranty.
2. Failure to install faucet flow control as shown on (Figure 3 page 6) may cause unsatisfactory operation of the heater.

IMPORTANT

The manufacturer of this water heater will not be liable for any damages due to the failure to follow these installation and operation instructions.

FIGURE 2 WIRING CONNECTION

NOTICE

Air in the heater may cause the elements to burn out. If the water lines are drained, allowing air into the heater, be sure to follow the following start-up procedure:

START UP PROCEDURE

1. Turn off electrical supply – open circuit breaker
2. Turn on water supply. Cycle hot side of faucet 10 times to assist in removing air bubbles.
3. Expel all air from lines and heater. Check for leaks at all fittings, joints and at water heater.
4. Turn on electrical power supply – close circuit breaker.

OPERATION INSTRUCTIONS

• Turn the hot water fixture to activate the Flow Switch. The Flow Switch activates at 0.20 gallons per minute (GPM) [0.76 LPM] and deactivates at 0.18 gallons per minute (GPM) [0.68 LPM].
• If you increase the flow rate of the water above the KW capacity, the water temperature will become cooler. Cold water can always be mixed just as with a conventional system if using a two handle faucet. Select the appropriate Flow Control.
• Once you decrease the hot water flow rate to 0.18 GPM [0.68 LPM] the unit will deactivate. It is not advisable to operate the heater at 0.18 GPM [0.68 LPM] hot water flow rate.

NOTES:

1. Periodically inspect (4 times a year) the supply lines, connections and heater for any moisture, corrosion or other potential preventable problems.
2. Prior to shutting off water valves for servicing, winterization, etc, always disconnect power from unit 1st.
3. Unit is intended to heat water only, and does not provide a means of cooling if inlet temperature exceeds set point temperature of heater.

OPTIONS

• PA 765 ABS Housing (P)
• Satin Finish Stainless Steel Housing (SS)
• High Polish Finish Stainless Steel (SSP)
• Pressure & Temp. Relief Valve Assembly (TP)
• 1/2” Male NPT (NPT08)
• Disconnect Switch, Rotary 40A – Lockable Nema 4X (2095-1)

FLOW CONTROLS:
You may want to install the supplied Flow Control in your design. This high- quality control makes the water heating system operate more effectively, as well as save water. The supplied GPM [LPM] Flow Control assures that the flow rate will not exceed GPM [LPM], however, less water can always be used. Consumer can mix the cold water as with a conventional system.

FACTORY SET TEMPERATURES

104°F| 110°F| 120°F
Notes:|
| Other Temperature Settings are available uponrequest up to 140°F
| Temperature Settings are not Field Adjustable
| 110°F / 120°F Temperature Settings are not recommended w ith metering / sensor faucets (cold w ater mix needed)

FLOW CONTROL SPECIFICATIONS

MATERIAL: Chrome Plated, Brass Housing.
THREADING: DUAL threads 15/16” Male 55/64” Female

NOTE: Flow Controls are adaptable to other thread configurations. Vandal resistant models are available. Please call factory If adapter or vandal resistant model is needed.

FLOW CONTROL MODELS CHART

KW| ACCESSORYPACKAGE| ≥45 PSI| < 45 PSI
1.2 – 5.4| AP-6-P| L412-0.35-NP0.35 GPM SPRAY| L412-0.5-NP0.5 GPM SPRAY

IMPORTANT

Periodically inspect (4 times a year) the supply lines, connections and heater for any moisture, corrosion or other potential preventable problems.

The potentiometer allows the factory preset temperature of the heater to be changed in the field. The potentiometer will adjust water temperature between 104°F and 125°F provided the wattage of the heater selected is capable of producing the temperature increase at the requested flow rate. See Table 1 temperature chart for each model to determine the temperature range of the heater installed. Adjustment knob is ¾ turn from minimum to maximum setting. Do not use a screwdriver to adjust the knob.

When using the potentiometer please use the following operation instructions:

To increase temperature:
a. Turn off power to heater.
b. Using a screwdriver, remove access cover
c. Turn knob by hand in small increments clockwise to match desired temperature
d. Board is marked with 104°F, 110°F, and 120°F
e. Install access cover
f. Turn on power to heater.
To decrease water temperature:
a. Turn off power to heater.
b. Using a screwdriver, remove access cover
c. Turn knob by hand in small increments counter-clockwise to match desired temperature
d. Board is marked with 104°F, 110°F, and 120°F
e. Install access cover
f. Turn on power to heater.

TROUBLESHOOTING GUIDE

Your Instant-Flow C-MICRO water heater has no internal user serviceable parts and should be returned to the factory for repair or replacement. Please contact factory for return authorization. If after following the Installation Instructions, your Instant-Flow C-MICRO does not heat water in accordance with this literature, please check the following:

1. Low Power – Verify your voltage by using a voltage meter. You should obtain your reading off the two outside terminals located on the heater. Compare the reading against the voltage specified in the Installation Instructions. The center terminal is always the earth ground. The hot and neutral legs, in the case of 110 V heaters, are attached on the two outside terminals.
2. High-Limit Thermostat – Shut off power on breaker. Remove cover. Push in reset button on module. Refer to Figure  for location. Reinstall cover. Turn on breaker. If problem persists, contact factory.
3. Heater   Element – Shut off power on circuit breaker. Remove cover. Measure element resistance by using an ohmmeter or multi-meter. Obtain your reading off of termination rods with brass nuts on each heater module. Refer to Figure 2 for location. This reading should be between 6 and 30 ohms for each element.
4. Check   Flow Rate – Controlling flow rate is essential to insure proper temperature increase. In the case of the low flow rate heater it is mandatory that the flow control be attached to the end of the faucet. Check your flow rate to insure proper operation of the heater. Low Flow Rate Models require 0.20 GPM (0.76 LPM) to activate.
5. Installation – Heater must be installed in a horizontal position. The silver label will then be located in the upper left corner as you face the heater.
6. Water   Supply – Do not throttle water supply to inlet of Instant-Flow C-MICRO. Operating conditions shall not exceed specification on page 2.
7. Freezing – Instant-Flow C-MICRO heaters must be drained and stored if installed in a location subject to freezing. Disconnect the inlet/outlet compression fittings and blow air through one side of the heater to assist draining. Failure to completely remove water from the unit will result in freezing and cracking.
8. Problems?- Call our toll-free hotline 800-447-4962 or 626-937-4270

WARNING

• This water heater is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the water heater by a person responsible for their safety.
• Children should be supervised to ensure that they do not play with the water heater.
• The water resistivity must not be less than 1100 OHM-CM.
• The water heater must be earth grounded.
• The water heater is not to be installed in locations where freezing can occur.

M AIL ADDRESS
P.O. BOX 3527
CITY OF INDUSTRY, CA 91744 U.S.A.
PHYSICAL ADDRESS
17451 HURLEY STREET
CITY OF INDUSTRY, CA 91744 U.S.A.
TOLL FREE 800-447-4962 • LOCAL 626-937-4270
FAX 626-937-4279 • WEB www.chronomite.com

WARRANTY INFORMATION

Your Instant-Flow C-Micro water heater has been engineered and built to the highest quality standards and is backed by a full, factory warranty. Every Instant-Flow C-MICRO water heater is guaranteed to be free from defects in material and workmanship for a period of (1) year from the date of purchase. The above warranty applies to original purchaser if unit is installed per Chronomite Laboratories, Inc.’s Installation Instructions. 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, F.O.B. City of Industry, California.

EXCLUSION OF COVERAGE FROM THIS LIMITED WARRANTY:

1. Chronomite is not liable under this limited warranty or otherwise if the water heater has not been installed or maintained in accordance with Chronomite’s printed instructions or installed with improper installation materials. In addition, the water heater or any of its component parts have been subject to misuse, neglect, alteration or accident and the water heater has not been installed in accordance with the applicable local plumbing and or building codes and/or regulations.
2. Chronomite is not liable under this warranty if the water heater has not been continuously supplied with potable water or the water inlet temperature is above Chronomite’s recommended maximum temperature. In addition, water heater experiences any water pressure or flow interruptions, normal operation inlet water pressure is outside of the published specification (UPC 2009), or exposed to any condition that causes the heater to turn on before the air is purged from the heater also known as “dry fire.”
3. Chronomite is not liable if the water heater has been exposed to conditions resulting from floods, earthquakes, winds, fire, freezing, lightning or circumstances beyond Chronomite’s control, or has been used for other than the intended purpose.

If violation occurs from the stated exclusions of coverage from this limited warranty or thereafter; owner, and not Chronomite or its agent/representative, is liable for and shall pay for all field charges, labor, water heater, damage or other expenses incurred in the repair or replacement of the water heater.

CHRONOMITE TECHNICAL SUPPORT
TOLL FREE 800-447-4962 • LOCAL 626-937-4270 • FAX 626-937-4279

References

• Electric Tankless Water Heaters - Chronomite

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