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I N S TA L L AT I O N A N D O P E R AT I N G I N S T R U C T I O N S
F O R A U T O M AT I C I N S TA N TA N E O U S T Y P E WAT E R H E AT E R S
F O R U S E W I T H N AT U R A L A N D L I Q U E F I E D P E T R O L E U M G A S
Upon completion of the installation, these instructions should be handed to the user of the appliance for
future reference.
FEATURING:
Suitable for water (potable) heating and space heating
*REPLACEMENT MANUAL MUST BE PURCHASED
Variable Power - Modulating Gas Valve - Thermostatic Control with Temperature Dial Selector
MODEL 170 VP
WARNING:
followed exactly, a fire or explosion may result
causing property damage, personal injury or death.
FOR YOUR SAFETY
Do not store or use gasoline or other flammable,
combustible or corrosive vapors and liquids in
the vicinty of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliance.
• Do not touch any electrical switch; do not use
any phone in your building.
• Immediately call your gas supplier from a
neighbor's phone. Follow the gas supplier's
instructions.
• If you cannot reach your gas supplier, call the
fire department.
- Installation and service must be performed
by a qualified installer, service agency or
the gas supplier.
If the information in this manual is not

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Summary of Contents for AquaStar 170 VP

  • Page 1 F O R U S E W I T H N AT U R A L A N D L I Q U E F I E D P E T R O L E U M G A S MODEL 170 VP...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS Specifications ................Page Rules for Safe Operation ............. Page General Overview of Aquastar ............ Page Locating the Heater for Safe Proper Combustion ......Page Installation ................... Page Connecting Gas and Water Lines & Pressure Relief Valve ..Page 9-10 Vent Pipe Connection ..............
  • Page 3 AquaStar 170 VP Specifications: Gas input ......max: 165,000 Btu min: 56,400 Btu Water Connection ....3/4" NPT fitting H x W x D ......35.5"x22.5"x13.5" Vent ............. 6" Gas Connection........3/4" NPT Min. Water Pressure ......15 Psi Max. Water Pressure ......150 Psi Shipping Weight ........
  • Page 4 CAUTION: RULES FOR SAFE OPERATION If you are using the AquaStar for combined space heating and potable water heating ( see schematic diagram below), all piping and other components connected to the system must be suitable for potable water, (b) toxic chemicals such as those commonly used for...
  • Page 5: Rules For Safe Operation

    RULES FOR SAFE OPERATION 1. You should follow these instructions when 6. Keep water heater area clear and free from you install your heater. combustibles and flammable liquids. Do not In the United States: The installation must con- locate the heater over any material which might form with local codes or, in the absence of lo- burn, such as carpet.
  • Page 6 Fig. 2 Parts of AquaStar 170 A. Hanging frame and back support L. Manual gas valve B. Thermostatic sensor M. Cold water inlet C. Heat exchanger P. Pilot starting button D. Thermocouple R. Water valve E. Burners S. Pilot filter F.
  • Page 7 That would be 8250 cubic feet for the AquaStar 170 alone. b) In unconfined spaces in buildings of 7. Place the heater in a location where water leaks will do NO DAMAGE to adjacent areas or conventional frame, masonry, or metal lower floors.
  • Page 8: Installation

    Gas with some products, but in the case of the sure they are level: 2 at the top and 2 at the AquaStar 170, the recommended minimum size bottom. is still 3/4", and 7/8" if the length of the tubing The holes should be 21 1/4"...
  • Page 9: Vent Pipe Connection

    No reducing coupling Note: Although the AquaStar has the same vent- or other restriction may be installed in the dis- ing requirements as other Category I gas appli- charge line.
  • Page 10 An "on demand" instantaneous heater like the output, the heater does not have its full heating AquaStar may have frequent operating cyles of capacity to warm the flue pipes to create a less than a minute. If venting and air supply are natural draft.
  • Page 11: Lighting Instructions

    DOT" symbol. Do not force. See Fig 3 below. Check that manual gas valve handle is on "RED FLAME" position. Push in center PILOT LIGHTING knob on the front of the AquaStar and twist counterclockwise . Push knob all the way in and hold it in. While holding...
  • Page 12 SETTING THE WATER TEMPERATURE very hot water and then mix in cold. It just The AquaStar 170 water heater contains a flow doesn't make sense to overheat water then mix restrictor set at 4 1/4 gpm. Its purpose is to in a lot of cold water to cool it off.
  • Page 13 If installed near a dryer, make sure the dryer To clean the pilot:Turn off the gas at the unit is properly vented, and that the AquaStar vents (L) Fig.2. Remove the front panel (unscrew properly when the dryer is operating.
  • Page 14 A. Gas cock on gas line may not be open. burner brass filter chamber. Be careful when B. AquaStar manual shut off valve at base of re-installing the pilot burner to aim the burner heater is not open. Turn handle to red flame sym- so that the smaller right hand pilot flame touches bol.
  • Page 15 4. Pilot orifice may not be correct for your 3. Poor circuit connections at the ECOs type of gas. (Energy Cut-Off switches) Pilot orifice is stamped: #15 for LP and #27 for Oxidation or looseness of the ECO screw con- nections can result in millivolt current loss through the thermocouple safety circuit.
  • Page 16 The crossover will create a couple. If the reading is 24 mv or over, the back pressure in the system preventing the pressure drop in the AquaStar - i.e. cold water thermocouple is good. To test the electromagnet, reconnect the ther- is entering the water valve from both sides and mocouple and take another reading.
  • Page 17 It is imperative that the gas ing in cold water, an AquaStar can be set for the pressure requirement be met exactly. Insuffi- exact temperature needed and give endless hot cient gas pressure will directly affect the water water without need for mixing in cold water.
  • Page 18: Setting Water Temperature

    AquaStar causing the flow through the are required by code, lower the temperature setting on the AquaStar as much as possible AquaStar to fall below the minimal 1.1 gallon/ and balance the pressure betwen cold and hot minute.
  • Page 19: Cleaning Pilot Assembly

    CLEANING THE PILOT ASSEMBLY suspect that it might be partially obstructed. If you do AquaStar models 80/125/170 not have a replacement orifice, you may blow through it or use a non-residue aerosol cleaning agent (like A. Removing Pilot that used for electronics) can be sprayed through the 1.
  • Page 20: Calibration And Thermostat Test

    1. Turn AquaStar temperature setting to #8. This is all the way to the right, clockwise. 2. Turn on a hot water tap at the flow which will turn the AquaStar burners on. If the heater is working correctly, this minimum activation flow will be 3/4 of a gallon a minute, for Model 125/80 and 1.1 for Model 170.
  • Page 21 PROCEDURE FOR REPLACING A THERMOSTAT 5. Pull down on the thermostat 1. Insert the capillary sensor into the TO REMOVE THERMOSTAT: piston assembly to remove it from heat exchanger. Be sure that the the gas valve. rubber gasket seats properly and A.
  • Page 22 (#6) to regulate the amount of gas to the burners. The Thermostatic Gas Flow Modulator (#5) works with Before the water leaves the AquaStar, it passes two the Water Temperature Probe (#17) to modulate the energy CutOff Switches (ECO-#19). These are safety...
  • Page 23 DIAGRAMATIC LAYOUT 18. GAS LINE PRESSURE TEST NIPPLE 10. PILOT LIGHT ORIFICE 1. HEAT EXCHANGER 19. OVERHEAT SENSOR SWITCH 11. PILOT LIGHT GAS FILTER 2. BURNERS 20. THERMOSTATIC WATER TEMPERATURE 12. THERMOCOUPLE 3. WATER FLOW RESTRICTOR SELECTOR 13. ELECTROMAGNET GAS FLOW SHUT-OFF 4.
  • Page 24 HOUSING COMPONENTS DIAGRAM AQUASTAR 170 SPARE PARTS LIST AQUASTAR 170VP 28329 - THERMOCOUPLE ACTIVATING KNOB 00134 - WASHER 29297 - CROSS-BAR FIXING SCREW 01302 - HAIRPIN SPRING CLIP 29411 - FRONT PANEL EMBELISHER 08493 - FRONT PANEL RETAINING SCREW 38294 - CASE FRONT PANEL LM170...
  • Page 25 INTERIOR COMPONENTS DIAGRAM AQUASTAR 170 SPARE PARTS LIST AQUASTAR 170VP 00869 27854 TOUCH SENSOR WIRE 38246 FLUE HOOD LM170 01302 T.C. RETAINING CLIP LM170 28075 RIGHT SIDE OF COMBUSTION CHAMBER 38261 CONNECTION 3/4” NPT 05964 GASKET 28076 LEFT SIDE OF COMBUSTION CHAMBER...
  • Page 26 VALVE ASSEMBLY COMPONENTS DIAGRAM AQUASTAR 170 SPARE PARTS LIST AQUASTAR 170VP 00341 WATER VALVE CENTERING TUBE 27126 RUBBER GASKET 38473 MAIN GAS VALVE N.G LM170 02071 RUBBER GASKET 31382 RUBBER GASKET 38474 MAIN GAS VALVE HOUSING LPG LM170 08501 MANIFOLD GAS INJECTOR N.G. Ø 1.25...
  • Page 27 INST INST ALLA ALLA TION CHECKLIST TION CHECKLIST INST ALLA ALLA TION CHECKLIST TION CHECKLIST INST INST ALLA TION CHECKLIST Gas Line Size* Natural Gas Nominal Iron Pipe Size* 1/2" 3/4" 1" Model 80 25" 100' 150' 125' Liquid Propane Semi-rigid Tubing 1/2"...
  • Page 28: Limited Warranty

    MISCELLANEAOUS you selected by CEC, such as a local AQUASTAR dealer or distributor. No one is authorized to make any other warranties on behalf of CEC. IT IS EXPRESSLY UNDERSTOOD THAT THE REPLACEMENT...