Automatic Heat/Cool Changeover

Transcription

1 -0 odels -000/000/00/00 he 000 panel provides intelligent control of forced air zoning systems with up to eight zones using motorized dampers and practically any off-the-shelf heat/cool thermostat can be used. ith such features as automatic changeover, opposite system service, short cycle timers and changeover timers the 000 provides the highest level of performance at the lowest cost. Zone apacity ompatible HV ystems ontrols two zones using motorized dampers and may be expanded to four, six or eight zones using one, two or three X- xpansion Panels. ontrols single stage gas or oil fired furnaces and electric air conditioning. P P H V ugged terminal blocks for easy and reliable wiring. 0 F K K K K K Heavy duty 0 amp relay. XF Z Z J I L Intelligent Zone ontrol 0 0 OP I / L 0 et the maximum call time before switching to opposing system. 0 O PV Intelligent microprocessor control with automatic changeover and built-in timers insure reliable operation. xpands to up to 8 zones. PV 9 U 9 XPNI U V U V 7 OL 000 P N ompatible hermostats ompatible with any heat/cool mechanical or electronic thermostat that operates on V, battery power or power robbing types that draw less than ma of current. ircuit breaker type fuse. IP switch selects gas or electric fan operation during heating. witch resets cycle timers and starts ontractor est. L indicators for HV outputs and dampers. Figure. 000 panel showing features. utomatic Heat/ool hangeover tatus L ystem Ls amper Ls Operating Power he 000 panel will automatically detect which zones are calling for heating and cooling and service the system with the greater number of calls. hen the same number of zones simultaneously call for heating and cooling, the panel will service heating calls first. he U L blinks slowly during normal operation to indicate the micro processor is operating properly. right Ls labeled, and indicate the functions that are energized Ls labeled Zone thru Zone 8 indicate which dampers should be open. Operates on V power supplied from a separate transformer. single 0V transformer can power four zones, each with a single damper. hermal reaker rown-out Protection Indoor Fan ontrol he 000 has a thermal circuit breaker in place of a fuse and protects the panel from shorts in the thermostat and damper wiring. It does not protect against shorts in the system wiring. hen the circuit breaker is tripped it will get quite hot. o reset the breaker, remove the V power for approximately 0 seconds. he figure above shows the location of the device.(f) rown-out detection circuit prevents microcomputer lockup when brownouts occur. ny zone can activate the indoor fan and only the dampers in zones calling for ontinuous fan operation will open. ontinuous fan operation will only occur when there are no heating or cooling calls. P/N June 00 V. opyright ontrols 00 ll ights eserved. ontrols Inc. 8 Highway nglishtown, NJ FX ail- info@ewccontrols.com

2 Indoor Fan ontrol uring Heating L L pair of IP switches select whether or not the indoor fan is activated by the panel during heating calls. he indoor fan is always activated during cooling calls. oth switches in the position activate the fan during a heating or cooling call. oth switches in the off position activate the fan only during a cooling call. oth switches must always be in the same position. imer eset U I ystem eset U omentarily pressing the I button clears the built-in timers controlling the minimum call time, off time and changeover time. his enables you to test the installation faster. omentarily pressing the button resets the computer. Figure. IP switch select fan control. uilt-in imer ettings he panel has built-in timers that insure reliable operation of hort ycle imer inimum all imer hangeover imer Opposing ystem ervice imer minutes, fixed minutes, fixed minutes, fixed 0 to minutes, djustable INLLI INUI ll wiring should be done to local and national codes and ordinances. Use color-coded, multi-conductor wire. ire number to number or letter to letter on each control. NIN: H PNL IN FO U IH V. O NO U OH VOL! U UI O VOI LI HOK O QUIPN. inimum un imer hort ycle imer hen a call is activated the panel will run the system in that mode for a minimum of minutes. hen the system is satisfied, the panel will not resume the same call for a minimum of minutes. hermostat iring Practically any heat/cool thermostat can be used with the 000 panel. typical thermostat installation is shown below. Z HO hangeover imer built-in timer prevents the system from rapidly switching between heating and cooling. t the end of a call, a five-minute timer is started and the panel will not switch to the opposing system until the timer has expired. - Opposite ystem imer OP I he OP I sets the maximum call time before the system switches to service zones calling for the opposing system, even though there may be more calls for the active system. etting the timer to 0 turns the opposing system feature off and the panel will service zones based on whether there are more zones calling for heating or cooling. Figure a. ypical thermostat wiring. - Z HO o 0:0 8 ool FN H UO O OOL OFF H Figure b. iring for thermostats with and H terminals. ontrols Inc. 8 Highway nglishtown, NJ FX ail- info@ewccontrols.com

3 HV ystem iring On the 000 panel, the fan () and the compressor () are powered by the terminal and the heating () is powered by the H terminal. wo ransformer ystems iring diagram for a typical oil burner or hot water coil heating with electric cooling. No jumper wire is required between and H. ingle ransformer ystems ypical gas/electric system wiring using a single transformer is shown below. e sure to add a jumper wire between and H as shown. OUOO UNI OPO L H OUOO UNI OPO L FN L VLV ire H FN L NFO IFFN OLO L I IN OF L INL OIL UN PI OL NFO FUN INL O ound amper iring erminal erminal erminal erminal ound amper otor iring Figure a. ingle transformer gas/electric system. he damper motor terminals (,, and ) will accommodate practically any V motorized damper. amper motor selection should be limited to motors with less than. amp current draw. ommon V constant V to open a damper V to close a damper ound amper otor iring IULO L O HO VLV ectangular amper iring iring wo ectangular ampers Figure b. wo-transformer oil burner with electric cooling. ire Figure a. zone controlling one rectangular damper. ectangular amper otor iring single rectangular damper motor is wired to the, and terminals as shown in figure a. Z X P iring two rectangular damper motors controlled by one zone is shown in figure b. ectangular amper otor iring P ire Z X ire Z X P Figure. zone controlling two round dampers. Figure b. zone controlling two rectangular dampers. ontrols Inc. 8 Highway nglishtown, NJ FX ail- info@ewccontrols.com

4 ontrolling or ore ampers From One Zone relay can be added to the system to control more than two dampers per zone. Figure 7a shows a relay used to control four dampers using the "" relay which has four sets of contacts (-pole) with both normally open and normally closed contacts. If more than four dampers are required on a single zone, a second relay can be added and the coils wired in parallel. NFO V, 0V Numbers in circles below refer to the terminal numbes on the socket for the relay. ype elay elay oil P ire Z Z Z Z X X X X ontrol Panel Figure 7. zone controlling four rectangular dampers using the relay. pring eturn otor iring V Power iring Figure 8 shows how to wire a spring return damper. power close style damper is wired &. Power open style damper is wired to &. - P Figure 8. single. V, 0V transformer can power the 000 panel and one X- expansion panel with one damper on each zone. It is important that the V terminals and be wired the same as shown in figure 9. eversing the terminal wiring can damage the panel. Line Voltage NFO V, 0V X- xpansion Panel V V 000 Panel Figure 9. V power wiring. utomatic ontractor est tep. tep. tep. tep. tep. tep. tep 7. tep 8. tep 9. tep 0. tep. tep. he 000 has a built-in automatic test that the contractor can initiate to test each zone damper, the indoor fan, the furnace, the air conditioning system and the L indicators. he test is started by holding the I switch for seconds. he test will start by turning the U L on continuously, turning the indoor fan on and opening the Zone damper. tatus L is on (not blinking), indoor fan is on and Zone damper is open. fter 0 seconds, the Zone damper opens. For zone systems press the I switch to advance to the heating test [step 9]. fter 0 seconds, the Zone damper opens. fter 0 seconds, the Zone damper opens. For zone systems press the I switch to advance to the heating test [step 9]. fter 0 seconds, the Zone damper opens. fter 0 seconds, the Zone damper opens. For zone systems press the I switch to advance to the heating test [step 9]. fter 0 seconds, the Zone 7 damper opens. fter 0 seconds, the Zone 8 damper opens. fter 0 seconds, the heating system is activated. fter minutes, the heating system is turned Off and the fan remains On. fter minutes, the cooling system is turned On. fter minutes, the cooling system is turned Off and the panel returns to normal operation. ontrols Inc. 8 Highway nglishtown, NJ FX ail- info@ewccontrols.com

5 etting the xpansion Panel IP witches ach expansion panel has a -position IP switch that must be set as shown in figure 0 to insure the panel operates properly. P P V F Intelligent Zone ontrol K K XF P V P P J O V N 7 U PV J U J J U OUPU INPU OL X- 8 9 P N 7 IP switch settings for third expansion panel. ight-zone ystem 00 ix-zone ystem 00 Four-Zone ystem 000 wo-zone ystem 000 P P V P P V P P H V F F F Intelligent Zone ontrol K K K K K K K K K XF P V Intelligent Zone ontrol XF XF P P P V P P J J Z Z J O V O V I L Intelligent Zone ontrol 0 N N / L O PV 7 0 OP I U U PV PV J J PV U U 9 U J J 9 J U J U OUPU INPU OUPU INPU XPNI U V U V OL X P N 9 P N 7 OL X OL 000 P N IP switch settings for second expansion panel. IP switch settings for first expansion panel. able Figure 0. Proper connection and IP switch settings for an eight-zone system. ontrols Inc. 8 Highway nglishtown, NJ FX ail- info@ewccontrols.com

6 VI UI ome Helpful uidelines ll V measurements on the panel and V measurements at the damper terminals and thermostat terminals should be made with the ground lead of your meter on terminal of the V input terminals. ll V measurements at the HV system terminals (, & ) should be made with the meter ground lead on the system's terminal at the HV system. aution! he thermal fuse (F) gets very hot when a short occurs in the V wiring or the panel. lways use caution when checking the fuse. hen measuring V, the voltage can vary from to 8V. heck V Power ampers Not esponding Properly ou should measure V at all damper terminals and all thermostat terminals. ou should measure V at the V test point (see figure for location) and V at the V test point. ee able if any of these voltages are incorrect. If the Z and Z L indicators are illuminated but the dampers appear to be malfunctioning, check that the dampers are wired correctly. If the Z and Z Ls are not responding properly, check the calls on each zone thermostat. If the calls indicate a damper should be activated and is not, press the switch to reset the timers. Using the L Indicators he U indicator should blink on and off every second to indicate the microcomputer is operating properly. he, and Ls indicate that the panel is trying to activate the HV system. he Z and Z L indicate that the panel is trying to activate the dampers. HV ystem Not esponding Properly able. etecting V horts and Loss of V or V If the problem persists, see able for service help. If the, and L indicators are responding properly, but the system appears to be malfunctioning, check that the HV system is wired correctly. If the, and Ls are not responding properly, check the calls on each zone thermostat. If the calls indicate an HV call should be activated and is not, press the switch to reset the timers. etecting V hort Isolating V horts 000 or X- Panels he U L will be off, you will measure V at the transformer terminal, but not at any damper terminal or any zone thermostat terminal. he thermal fuse will be very hot. emove the power to the panel and all expansion panels and allow the fuse to cool. isconnect the jumper cable between the panel and the first expansion panel. e-power the panel. If the short persists, the problem is in the 000 or its wiring. etecting Loss of V or V If the short still persists disconnect all the wires at each damper (,, & ). If the short clears, check the damper wiring and the damper. If the short still persists, the panel or expansion panel is defective. he V and V can be measured at the test points shown in figure on page 8. If either voltage is not correct, disconnect the jumper cable connecting the panel and the first expansion panel. Isolating V horts Panel or iring emove the wire at each zone thermostat terminal and test if the short still persists. If the short disappears, check the zone thermostat wiring and the thermostat itself. If the voltage problem clears, check that the V power is wired to the correct terminals (terminal to and terminal to as shown in figure 9). If the problem still persists, the panel is defective. ontrols Inc. 8 Highway nglishtown, NJ FX ail- info@ewccontrols.com

7 amper L On ut amper Not esponding 000 amper L Not esponding X- amper L & amper Not esponding heck the damper wiring to insure it is correctly wired. e sure the wires are secured in the terminals. est the damper motor to insure it is properly operating. If the problem still persists, replace the damper. heck that the U L is blinking. If it is not, the panel may have been placed in the ontractor est inadvertently by holding the switch for seconds. Press the switch to cancel the ontractor est. Press the switch to clear any timers that may be keeping the call off and the damper from not responding. heck the voltage at each zone thermostat terminal, and terminals to insure the damper should be activated. If the problem still persists the panel is defective. If the damper is on an expansion panel, check the IP switch settings on each expansion panel to insure they are properly set. heck the >>> able. etecting amper Problems esting a amper otor V power to insure the expansion panel is powered and check that the jumper cables are installed properly. heck the voltage at each zone thermostat terminal, and terminals to insure the damper should be activated. For a round damper, conect V common to terminal and V to terminals and. he damper should open. emove V from terminal and the damper should close. For a rectangular damper, connect V common to terminal and V to terminal and the damper should open. emove V from terminal and apply V to terminal and the damper should close. e sure there is a jumper between terminals and. For a power close spring return damper, connect V to the two wires, and the damper should LO. emove the V and the damper should OPN. For a power open damper, the action will be reversed., & L On ut ystem Not esponding Ls and ystem Not esponding able. etecting Heating, ooling and Fan Problems heck the HV wiring to insure it is correctly wired. e sure the wires are secured in the terminals. heck that there is V at the and H terminals. Use the HV system common () for the ground lead of your meter. heck that H and are connected if the system uses a single transformer. ou can test the HV by shorting terminals and together to activate the heater, to to activate the compressor and to to activate the fan. If the HV system has responded properly, the panel is defective. heck that the U L is blinking to insure the computer is operating properly. Press the switch if it is not. Press the switch to clear the timers that may be preventing the call. he panel could be in minimum call time, minimum off time, >>> easuring hermostat Voltages amper efaults changeover delay or opposite system timing. If the system still does not respond, measure the voltage at each zone thermostat terminal, & to insure they are correct and a call is in order. Heat/ool thermostats will apply V to the terminal during a heating call. uring a cooling call, V is applied to both and. uring a continuous fan call, V is applied to the terminal. e sure the and H terminals at the thermostats are jumpered together. ll dampers will stroke to the OPN position when all thermostats are satisfied and the 000 panel is idle. ontrols Inc. 8 Highway nglishtown, NJ FX ail- info@ewccontrols.com 7

8 ire ectangular amper otor iring Z X ound amper otor iring V K K K K K Z Z J I U 0 L / L H XF 0 PV PV 9 ll wiring should be done to local and national codes and ordinances. Use colorcoded, multi-conductor wire. ire number to number or letter to letter on each control. O F U P N U OP I 9 XPNI 8 7 V V OUOO UNI OPO L FN L VLV NFO FUN INL O * *JUP NFO V, 0V IIN I odel 000 ontrol Panel ingle tage uto-hangeover HL K V POIN N POIN V POIN Z HO Z HO H H NIN: H PNL IN FO U IH V. O NO U OH VOL! U UI O VOI LI HOK O QUIPN. 8 7 Intelligent Zone ontrol OL P P Figure. 000 wiring diagram. ontrols Inc. 8 Highway nglishtown, NJ FX ail- info@ewccontrols.com 8