Raypak X-THERM 1005–2005 Installation & Operating Instructions Manual

Also see for 1005-2005: Specification sheet Specifications

Definitions% OUT - Current percent modulation rate of heater.BOIL DSGN - Design boiler water temperature used inheat loss calculations.BOIL MASS - This setting allows adjustment in thefield for high or low thermal masses; High thermalmass (setting=3) provides slower reaction, lower ther-mal mass (setting=1) provides faster reaction.BOIL MAX - Highest outlet water temperature that thecontrol is allowed to use as a target temperature.BOIL MIN - Lowest outlet water temperature that thecontrol is allowed to use as a target temperature.BOIL ON - Accumulated runtime of heater (up to 999hours, then resets to 0).BOIL OUT - Actual heater outlet water temperature.BOIL START - Starting boiler water temperature.BOIL SUP - Actual system supply water temperature.BOIL TARGET - Target temperature that the heater istrying to maintain.‘BURNER’ DELAY - Holds control output at ignitionsetting from the start of the ignition sequence to thespecified burner delay time (0 to 3:00 min.).DEM 1 - Indicates 24 VAC signal has been supplied tothe H+D terminal.DEM 2 - Indicates 24 VAC Flame Proof signal is pres-ent.DIFF - The operating differential of the heater; Theheater outlet water temperature is allowed to riseabove the BOIL TARGET temperature by 1⁄2 of this dif-ferential before the heater shuts off. For example, ifthe heater target temperature is set to 160°F (71°C)and the differential is set to 10°F (5°C), on temperaturerise, the heater will shut off at 165°F (74°C). Once theheater shuts off, it will not come on again until the tem-perature falls to 155°F (68°C).EXTERNAL INPUT SIGNAL – Selects external inputsignal range (0-10VDC or 2-10VDC):0-10VDC or 0-20 mA external input signal – Whenthe 0-10VDC signal is selected, an input voltage of 1VDC corresponds to a boiler target temperature of50°F (10°C). An input voltage of 10 VDC correspondsto a boiler target temperature of 220°F (104°C). As thevoltage varies between 1 VDC and 10 VDC, the boilertarget temperature varies linearly between 50°F(10°C) and 220°F (104°C). If a voltage below 0.5 VDCis received, the boiler target temperature is displayedas “– – –” indicating that there is no longer an internalheat demand. A 0-20 mA signal can be converted to a0-10 VDC signal by installing a 500 Ω resistor on theexternal input signal device’s terminals.2-10VDC or 4-20 mA external input signal – Whenthe 2-10VDC signal is selected, an input voltage of 2VDC corresponds to a boiler target temperature of50°F (10°C). An input voltage of 10 VDC correspondsto a boiler target temperature of 220°F (104°C). As thevoltage varies between 2 VDC and 10 VDC, the boilertarget temperature varies linearly between 50°F(10°C) and 220°F (104°C). If a voltage below 1.5 VDCis received, the boiler target temperature is displayedas “– – –” indicating that there is no longer an internalheat demand. A 4-20 mA signal can be converted to a2-10 VDC signal by installing a 500 Ω resistor on theexternal input signal device’s terminals.FP - Flame proof warning. Warns that the control didnot see burner flame within 5 min. of call for heat.MODE - Operating mode of the heater.OFFSET - The Offset setting allows the boiler targettemperature to be fine tuned to the external input sig-nal. The control reads the external input signal andconverts this to a boiler target temperature. The Offsetsetting is then added to the boiler target temperature.OUTDR - Outdoor air temperature.OUTDR DESIGN - Design outdoor air temperatureused in the heat loss calculation.OUTDR START - Starting outdoor air temperature.PUMP DLY - Sets the operating time of the pump oncethe CFH is satisfied.TANK - Current DHW tank temperature (Mode 3).TANK DIFF - Storage tank differential (Mode 3).TANK TARGET - Target temperature in the DHWstorage tank (Mode 3).NOTE: The defined terms are not active in allmodes of control operation.California Hot Water Supply, Inc.(800) 249-724434