Use and Care Manual

ManualsBrandsChronomite ManualsPlumbingMIGHTY-mite R Series-Low Activation 0.35 GPM 48 Amp, 208-Volt, 10,000-Watt Point of Use Electric Tankless Water Heater

1 | P a g e

CHRONOMITE R-SERIES MIGHTY-MITE WATER HEATERS

INSTALLATION AND OPERATION INSTRUCTIONS (208-277V Models)

(Before installation, compare electrical requirements needed for the model of heater selected)

TABLE 1 – Electrical Specifications

Model

Wattage

Total

Amps

1Φ Voltage

Circuit Breaker

Intermittent Duty Continuous Duty

R-48x/208

10,000

208

50 amp / 2 pole

60 amp / 2 pole

R-48x/240

11,500

220-240

50 amp / 2 pole

60 amp / 2 pole

R-58x/208

12,050

208

60 amp / 2 pole

80 amp / 2 pole

R-63x/208

13,100

208

70 amp / 2 pole

80 amp / 2 pole

R-48x/277

13,300

277

50 amp / 1 pole

60 amp / 1 pole

R-58x/240

13,900

240

60 amp / 2 pole

80 amp / 2 pole

R-68x/208

14,150

208

70 amp/ 2 pole

90 amp/ 2 pole

R-63x/240

15,100

220-240

70 amp / 2 pole

80 amp / 2 pole

R-75x/208

15,600

208

80 amp / 2 pole

100 amp / 2 pole

R-58x/277

16,050

277

60 amp / 1 pole

80 amp / 1 pole

R-68x/240

16,300

220-240

70 amp / 2 pole

90 amp / 2 pole

R-63x/277

17,450

277

70 amp / 1 pole

80 amp / 1 pole

R-75x/240

18,000

220-240

80 amp / 2 pole

100 amp / 2 pole

R-68x/277

18,850

277

70 amp / 1pole

90 amp / 1pole

R-75x/277

20,750

277

80 amp / 1 pole

100 amp / 1 pole

x = (L)-Low Activation

(S)-Standard Activation

(H)-High Activation

R-Series MIGHTY-MITE Specifications:

Dimensions: 9-3/4" (H) x 10-1/2" x 4-1/4"

Weight: 10 LBS

Materials:

 Rugged steel housing and cover

 Celcon plastic element assembly with nichrome coils

Minimum Operating Pressure: 25 PSI

Maximum Operating Pressure: 80 PSI

Maximum Pressure: 150 PSI

No pressure relief valve needed, unless required by local code.

Maximum Operating Temperature: 160°F

Listings: UL, UPC

Mounted Unit

Summary of content (8 pages)

PAGE 1
CHRONOMITE R-SERIES MIGHTY-MITE WATER HEATERS INSTALLATION AND OPERATION INSTRUCTIONS (208-277V Models) (Before installation, compare electrical requirements needed for the model of heater selected) TABLE 1 – Electrical Specifications Model Wattage R-48x/208 R-48x/240 R-58x/208 R-63x/208 R-48x/277 R-58x/240 R-68x/208 R-63x/240 R-75x/208 R-58x/277 R-68x/240 R-63x/277 R-75x/240 R-68x/277 R-75x/277 10,000 11,500 12,050 13,100 13,300 13,900 14,150 15,100 15,600 16,050 16,300 17,450 18,000 18,850 20,750 Tot
PAGE 2
TABLE 2 – Flow Switch Activation Flow Switch Activation Low Activation (L) Standard Activation (S) High Activation (H) 0.35 GPM 0.65 GPM 1.80 GPM THE MANUFACTURER OF THIS WATER HEATER WILL NOT BE LIABLE FOR ANY DAMAGES CAUSED BY THE FAILURE TO FOLLOW THESE INSTALLATION AND OPERATION INSTRUCTIONS. CAUTION: BEFORE BEGINNING THE INSTALLATION: 1. 2. Turn off circuit breaker to avoid dangerous electrical shocks. Turn off water supply. INITIAL INSTALLATION: 1.
PAGE 3
5" Minimum Fastener Clearance 1 Chronomite R-Series Hi-Limit Thermostat Heater Module Outlet Valve (optional) Outlet Union 4b 3b 5" Minimum Fastener Clearance Outlet 5b Pipe 5a 4a Inlet Pipe Mounting Holes Qty 4 Inlet Union Temperature Adjustment Potentiometer 24v Control Transformer 2 Electrical Entrance FIGURE 1 - Heater Installation Items Needed for Installation: Item 1 2 3a/b 4a/b 5a/b 6 Part No.
PAGE 4
ELECTRICAL INSTALLATION: 1. Connect power supply wires appropriately sized and protected by double pole (208-240v) or single pole (277v) circuit breakers to the input terminals on the heater (hard wired) as shown in the Figure 2 wiring diagrams below. Refer to Table 1 above on Page 1 for the voltage, amp and phase ratings of the supply power. 2. Ensure wires are connected to the respective relay terminals. 3. Ensure water inlet/outlet valves are both open. 4. Turn on circuit breaker.
PAGE 5
IMPORTANT NOTES: Air in the heater may cause the elements to burn out. If the water lines are serviced or drained upstream of heater, be sure to use the following start up procedure: 1. Turn off electrical supply at circuit breaker. 2. Turn on water supply. 3. Expel all air from lines and heater by cycling downstream faucet 10x. 4. Turn on electrical power supply at circuit breaker. OPERATION INSTRUCTIONS:        Turn the hot water faucet to activate the flow switch.
PAGE 6
Temperature Adjustment Potentiometer - (L) and (S) Activation Models The potentiometer allows the factory preset temperature of the heater to be changed in the field. The potentiometer will adjust water temperature between 70°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 3 temperature chart for each model to determine the temperature range of the heater installed.
PAGE 7
TROUBLE SHOOTING GUIDE: Your Large Capacity MIGHTY-MITE 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 LCH MIGHTY-MITE does not heat water in accordance with this literature, please check the following: 1.
PAGE 8
Exclusion of coverage from this limited warranty: 1. 2. 3. 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.