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Installation, OPERATION
AND MAINTENANCE
CHECK ALL ELECTRICAL CONNECTIONS TO ALL COMPONENTS
WITHIN THE HEATER FOR TIGHTNESS. CONNECTIONS CAN
BECOME LOOSE DURING SHIPMENT AND HANDLING.
THE ELECTRICAL INSTALLATION MUST BE IN ACCORDANCE
WITH ARTICLE 680 OF THE NATIONAL ELECTRICAL CODE.
Only qualified personnel, as defined by National Electric Code Article
100, should install and maintain this equipment. Unauthorized
alteration or improper maintenance of this unit may release the
manufacturer from any warranty claims. The installation must be in
accordance with the instructions in this manual and applicable local
SPA HEATER
MODELS:
ST SERIES
5.5 & 11kW
240V SINGLE PHASE
BEFORE YOU BEGIN
CAUTION
plumbing and electrical codes.
Publication 10-2011
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Summary of Contents for Coates ST Series
- Page 1 SPA HEATER INSTALLATION, OPERATION AND MAINTENANCE MODELS: ST SERIES 5.5 & 11kW 240V SINGLE PHASE BEFORE YOU BEGIN CHECK ALL ELECTRICAL CONNECTIONS TO ALL COMPONENTS WITHIN THE HEATER FOR TIGHTNESS. CONNECTIONS CAN BECOME LOOSE DURING SHIPMENT AND HANDLING. CAUTION THE ELECTRICAL INSTALLATION MUST BE IN ACCORDANCE WITH ARTICLE 680 OF THE NATIONAL ELECTRICAL CODE.
- Page 2 1.0 DESCRIPTION 2.2 ELECTRICAL INSTALLATION Coates Spa Heaters are intended for use on spas or CAUTION hot tubs having a forced water circulation system. The water flow through the heater should be at least THE ELECTRICAL INSTALLATION MUST BE IN 15 GPM but should not exceed 80 GPM.
- Page 3 2. Do not remove the heater cover while 4. If heating elements are removed for electrical power is applied to the heater. replacement, use only Coates elements, Power must be interrupted at the heater see Table 2. supply circuit breaker or disconnect switch.
- Page 4 FLOW BLUE BLUE 240V GROUND NO COM CON 1 TEMP. LIMIT CONTROL RED #8 RED # 8 LINE 1 BLK #8 BLK # 8 LINE 2 HTL: HI-TEMP CUT OFF “MANUAL RESET”. TEMPERATURE CONTROL - THERMOSTAT. ELM 1 - 2: HEATING ELEMENT(S).
- Page 5 PROTECTING YOUR COATES HEATER WITH PROPER WATER CHEMISTRY Proper water balance is important to extending the life of your Coates Heater. While pH control is critical, the control of alkalinity and calcium hardness will protect against scaling and also help to prevent corrosion.
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Page 6: Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS When using this electrical equipment, basic safety precautions should always be followed, including the following. 1) READ AND FOLLOW ALL INSTRUCTIONS. 2) To reduce the risk of injury. A) The water in a pool or tub should never exceed 104°F (40°C). A water temperature in excess of 104°F is considered unsafe for all persons. - Page 7 THIS PAGE INTENTIONALLY LEFT BLANK...
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Page 8: Limited Warranty
Coates Heater Company, Inc. or to any product where the nameplate shall have been removed, altered, replaced, defaced or rendered illegible.
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