Micro Control MCS-BMS-GATEWAY Guía para resolver problemas

Magnum Version 8 Manual Rev. 3.1 HVAC and CENT V8 Software

MAGNUM VERSION 8 MANUAL REVISION 3.1 10 Setpoint #35 “AMP DB LO” Setpoint #36 “AMP DB HI” Setpoint #125” Eco StageDly” Setpoint #143 “UNLOADED

MAGNUM VERSION 8 MANUAL REVISION 3.1 100 liquid level is stable and in the control range then the valve is being controlled properly. To accomp

MAGNUM VERSION 8 MANUAL REVISION 3.1 101 7.79. Lockout per Compressor In software 8.05-C and newer, the feature to lockout only certain affect

MAGNUM VERSION 8 MANUAL REVISION 3.1 102 7.80.1.2. Run Hour Lockout In the Setup screen select the option Run Hour Lockout Required. If enable

MAGNUM VERSION 8 MANUAL REVISION 3.1 103 To deactivate the Factory Startup function, navigate back to the password screen and the following s

MAGNUM VERSION 8 MANUAL REVISION 3.1 104 When the password for Maximum Run Time is entered the user can reset the maximum number of compressor

MAGNUM VERSION 8 MANUAL REVISION 3.1 105 Enter the correct password to deactivate the Maximum Run Time function. Select Yes to confirm you

MAGNUM VERSION 8 MANUAL REVISION 3.1 106 TYPE ITEM Fixed Value Enter a fixed value with decimal place if required. SI Select Sensor Input AO

MAGNUM VERSION 8 MANUAL REVISION 3.1 107 * NOT (DI only) Operand 1 times the opposite value of Operand 2, which must be a digital. If Operand

MAGNUM VERSION 8 MANUAL REVISION 3.1 108 User Relay Output 7.81.4.User Relay Outputs allow customized control of relays based on operand val

MAGNUM VERSION 8 MANUAL REVISION 3.1 109 7.81.4.1. Examples of User Logic Relay Outputs In the above example the “Store Alarm Msg“ option has

MAGNUM VERSION 8 MANUAL REVISION 3.1 11  MCS-SI16-AO4 (16 SI and 4 AO) The versatility of the Magnum offers the user much flexibility in co

MAGNUM VERSION 8 MANUAL REVISION 3.1 110 In the above example if relay ‘RUN’ is OFF, the value of this Analog Output will be zero. If ON, the

MAGNUM VERSION 8 MANUAL REVISION 3.1 111 8. Magnum Alarms and Safeties There are three types of alarms that are generated by the Magnum contro

MAGNUM VERSION 8 MANUAL REVISION 3.1 112  RS485 CHANGED – Generated when a user makes changes to the RS485 address through the Keypad/Display.

MAGNUM VERSION 8 MANUAL REVISION 3.1 113 within the time in the ‘Lockout Delay Hrs’ cell since the first trip, the circuit will be set to CMP L

MAGNUM VERSION 8 MANUAL REVISION 3.1 114 Low Suction Pressure If the suction pressure drops below the value of the Setpoint or the digital inpu

MAGNUM VERSION 8 MANUAL REVISION 3.1 115 Dirty Oil Filter (Fixed Step Compressors only) If the difference between the discharge pressures minus

MAGNUM VERSION 8 MANUAL REVISION 3.1 116 SCR Temperature Fault (Hex code =0x0400) The measured SCR Temperature has exceeded either the Alarm

MAGNUM VERSION 8 MANUAL REVISION 3.1 117 9. Hardware Quick References 9.1. Magnum Keypad Display  No authorization is required to view inf

MAGNUM VERSION 8 MANUAL REVISION 3.1 118 9.2. MCS-Magnum Revision 8.1

MAGNUM VERSION 8 MANUAL REVISION 3.1 119 9.3. MCS-SI16-AO4

MAGNUM VERSION 8 MANUAL REVISION 3.1 12 3.7. RS485 Network with Local RS232 Communications

MAGNUM VERSION 8 MANUAL REVISION 3.1 120 9.4. MCS-RO10

MAGNUM VERSION 8 MANUAL REVISION 3.1 121 10. Troubleshooting Quick Reference (A more detailed troubleshooting guide is available on our websi

MAGNUM VERSION 8 MANUAL REVISION 3.1 122 PROBLEM POTENTIAL SOLUTION SI from AMPS board 10 A low. This indicates a problem with this SI only. 

MAGNUM VERSION 8 MANUAL REVISION 3.1 123 11. BMS Communication Protocols Magnum supports BACnet IP, Modbus RTU, Modbus TCP/IP, and Johnson N2.

MAGNUM VERSION 8 MANUAL REVISION 3.1 124 11.2. Relay Output Points Relay Output points are read-only. Sensor numbering is based upon RO-10 har

MAGNUM VERSION 8 MANUAL REVISION 3.1 125 Magnum BACnet ID BACnet Name Modbus RegisterN2Analog Out 1-3 AO:7 Refer to Config *30207 *AO:

MAGNUM VERSION 8 MANUAL REVISION 3.1 126 11.6. Other Points These points are read-only. Magnum BACnet ID BACnet Name Modbus N2Wanted FLA% A

MAGNUM VERSION 8 MANUAL REVISION 3.1 127 Magnum BACnet ID BACnet Name Modbus N2Compressor #9 Sat Suction AV: 443 C9_Sat Suct *30584 *ADF:

MAGNUM VERSION 8 MANUAL REVISION 3.1 128 Magnum BACnet ID BACnet Name Modbus N2Compressor #18 Suct SH AV: 509 C18_Suct SH *30621 *ADF: 51

MAGNUM VERSION 8 MANUAL REVISION 3.1 129 The sensors must be set up as follows (This is only an example) 11.8. MCS Capacity Control State C

MAGNUM VERSION 8 MANUAL REVISION 3.1 13 3.8. RS485 Network with Remote Modem Communications

MAGNUM VERSION 8 MANUAL REVISION 3.1 130 11.9. MCS Compressor Control State Chart The values expressed in the compressor state relate to the d

MAGNUM VERSION 8 MANUAL REVISION 3.1 131 11.10. MCS-Magnum to BMS Connections

MAGNUM VERSION 8 MANUAL REVISION 3.1 132 11.11. MCS-Magnum BMS protocols settings Bacnet Over IP 11.11.1.The BACNET DEVICE ID is a five-digit

MAGNUM VERSION 8 MANUAL REVISION 3.1 133 If you are going to manually assign the IP Address, Subnet Mask, and Default Gateway.  Press the Me

MAGNUM VERSION 8 MANUAL REVISION 3.1 134 12. Relay Output Sequences The sequence of Relay Outputs must be correctly matched to the particular

MAGNUM VERSION 8 MANUAL REVISION 3.1 135 Third liquid line solenoid (OPTIONAL) Reversing valve (heat pump) (OPTIONAL) Liquid injection #2 (OPTI

MAGNUM VERSION 8 MANUAL REVISION 3.1 136 Liquid injection #2 (OPTIONAL) Mod motor (OPTIONAL) 12.5. Carlyle Screw (Carlyle Screw) Compressor re

MAGNUM VERSION 8 MANUAL REVISION 3.1 137 12.7. Hanbell- 3 Solenoid (Hanbell- 3 Solenoid [50-100%]) Compressor relay Part winding compressor re

MAGNUM VERSION 8 MANUAL REVISION 3.1 138 12.9. Centrifugal (Centrifugal Comp) Compressor relay Part winding compressor relay (OPTIONAL) Open V

MAGNUM VERSION 8 MANUAL REVISION 3.1 139 Liquid injection (OPTIONAL) Fast unloader (OPTIONAL) Second liquid line solenoid (OPTIONAL) Oil equali

MAGNUM VERSION 8 MANUAL REVISION 3.1 14 3.9. PC Support Software for Magnum MCS-Config provides the configuration file (.cfg), which includes

MAGNUM VERSION 8 MANUAL REVISION 3.1 140 13. Magnum V8 Setpoints # (Number) - From 1 to 230 (maximum number of Setpoints supported). Only ac

MAGNUM VERSION 8 MANUAL REVISION 3.1 141 entire package or an individual compressor depending on the purpose of the safety. The Magnum will the

MAGNUM VERSION 8 MANUAL REVISION 3.1 142 13.2. Setpoints for Magnum HVAC and CENT V8 Software If a particular Setpoint is supported only in ei

MAGNUM VERSION 8 MANUAL REVISION 3.1 143 # Name Description 8 L.INJECT.ON This Setpoint can be used for both liquid injection solenoids. Val

MAGNUM VERSION 8 MANUAL REVISION 3.1 144 # Name Description STAGE 15 CUT IN (Cut In/Out Control) Stage 15 cut in, Setpoint value contains the

MAGNUM VERSION 8 MANUAL REVISION 3.1 145 # Name Description 30 MAX FLA% or MAX SLIDE % or MAX CAPACITY% or MAX VFD % Indicates the maximum amp

MAGNUM VERSION 8 MANUAL REVISION 3.1 146 # Name Description 39 LUBE OIL TMP The oil must reach this temperature before the system will move

MAGNUM VERSION 8 MANUAL REVISION 3.1 147 # Name Description 50 CND TRGT (Modulating Type) Target the logic will try to maintain by modulating

MAGNUM VERSION 8 MANUAL REVISION 3.1 148 # Name Description 61 PMP DWN OFF This is the suction pressure value for turning off the compressor

MAGNUM VERSION 8 MANUAL REVISION 3.1 149 # Name Description 75 HI AMPS This Setpoint is a percentage of the FLA; it is used to create the hi

MAGNUM VERSION 8 MANUAL REVISION 3.1 15 4. Magnum Display Summary The following is an examination of all the information screens that can be a

MAGNUM VERSION 8 MANUAL REVISION 3.1 150 # Name Description 86 HI RETURN TEMP Only active in Mitsubishi compressors. If active the Magnum wi

MAGNUM VERSION 8 MANUAL REVISION 3.1 151 # Name Description 98 LLS#2 ON This Setpoint is used to control a second liquid line solenoid. Whe

MAGNUM VERSION 8 MANUAL REVISION 3.1 152 # Name Description 106 LEAD PUMP Indicates which pump is the lead. If zero, then rotation of the pu

MAGNUM VERSION 8 MANUAL REVISION 3.1 153 # Name Description 119 EcoOffsetON Temperature offset to determine when the economizer can be used.

MAGNUM VERSION 8 MANUAL REVISION 3.1 154 # Name Description 136 VI PULSE Used with an adjustable VI, volume ratio. This is the pulse time expr

MAGNUM VERSION 8 MANUAL REVISION 3.1 155 # Name Description 152 HP OVERHEAT This Setpoint is only used when the heat pump option has been se

MAGNUM VERSION 8 MANUAL REVISION 3.1 156 # Name Description 161 DEF TERM TMP (Only HVAC) If both coil #1 and coil #2 temperature are greater

MAGNUM VERSION 8 MANUAL REVISION 3.1 157 # Name Description 180 FLA COMP#10 Full Load Amps for compressor #10. Refer to Setpoint #171. 181

MAGNUM VERSION 8 MANUAL REVISION 3.1 158 # Name Description 201 MOP ADJ % TME (Only HVAC) The adjustment value by which the EXV valve will cl

MAGNUM VERSION 8 MANUAL REVISION 3.1 159 # Name Description 205 MDP MIN OIL DIFF (Only HVAC) If active, MDP logic will be added to EXV contro

MAGNUM VERSION 8 MANUAL REVISION 3.1 16 Purge Status Screen (only if Purge cycles are active) 4.1.5.ACTUAL DISPLAY DESCRIPTION

MAGNUM VERSION 8 MANUAL REVISION 3.1 160 # Name Description COMP SURGING (Only CENT) (HVAC 08.02E1 or Greater Formerly #141) The number of su

MAGNUM VERSION 8 MANUAL REVISION 3.1 161 # Name Description CLLC LEVEL TRG (Only CENT) The ‘Value’ is the target that is to be maintained of

MAGNUM VERSION 8 MANUAL REVISION 3.1 162 # Name Description 225 CLLC LEVEL TARGET Condenser Liquid Level Control level target. The safety time

MAGNUM VERSION 8 MANUAL REVISION 3.1 17 4.2. HVAC STATUS Display (MCS-Connect) The screenshot above shows the following features:  The top

MAGNUM VERSION 8 MANUAL REVISION 3.1 18 System (unit) information is shown in the top section:  Capacity Control State - State of chiller 

MAGNUM VERSION 8 MANUAL REVISION 3.1 19 4.3. CENT Status Display (MCS-Connect) The Control Status for centrifugal compressor portion of the

MAGNUM VERSION 8 MANUAL REVISION 3.1 2 The DB Commitment: Our commitment is to provide practical solutions for the industry’s needs and to be b

MAGNUM VERSION 8 MANUAL REVISION 3.1 20 Compressor information (all active compressors will be displayed):  State - Compressor number and sta

MAGNUM VERSION 8 MANUAL REVISION 3.1 21 5. Authorization Function The authorization code is a special four-character code that enables access

MAGNUM VERSION 8 MANUAL REVISION 3.1 22 6. Magnum Control States The Magnum controller is a state computer, that is, decisions are made based

MAGNUM VERSION 8 MANUAL REVISION 3.1 23 2) Control sensor reading is above the control zone but the Rate of Change is less than the value in t

MAGNUM VERSION 8 MANUAL REVISION 3.1 24 STEP will be moved per second. If the NO FLOW Setpoint is active and set to Lockout the chiller will lo

MAGNUM VERSION 8 MANUAL REVISION 3.1 25 UNIT SMOKE UNLDG (20) 6.1.21.This state is entered when the system is unloading because a smoke alarm

MAGNUM VERSION 8 MANUAL REVISION 3.1 26 the suction pressure reaches Setpoint #61 “PMP DWN OFF” or the time has exceeded Setpoint #62 “PMP DWN

MAGNUM VERSION 8 MANUAL REVISION 3.1 27 If a variable step compressor, then the percentage wanted on will be checked. If it is less than Setpo

MAGNUM VERSION 8 MANUAL REVISION 3.1 28 CMP IS RUNNING (14) 6.2.19.For fixed capacity compressors only, this state occurs when the compressor

MAGNUM VERSION 8 MANUAL REVISION 3.1 29 Variable Step Compressors - Capacity is being held due to high discharge temperature or pressure. Once

MAGNUM VERSION 8 MANUAL REVISION 3.1 3 SCHEDULED OFF (10) ...

MAGNUM VERSION 8 MANUAL REVISION 3.1 30 HI WATER HOLD (27) 6.2.33.When the compressor is running and Setpoint #86 “HI RETURN TEMP” is active,

MAGNUM VERSION 8 MANUAL REVISION 3.1 31 If Trane Trio then COMP C is on and COMP A and B are off. If Trane Quad then COMP A is on and COMP B,

MAGNUM VERSION 8 MANUAL REVISION 3.1 32 7. Standard Control Options The following options are specified in MCS-Config when building the config

MAGNUM VERSION 8 MANUAL REVISION 3.1 33 changing, its direction, and its distance from the control zone will all be used to determine how the M

MAGNUM VERSION 8 MANUAL REVISION 3.1 34 Compressor with a Variable Frequency Drive (VFD) 7.4.2.This option is specified in MCS-Config by selec

MAGNUM VERSION 8 MANUAL REVISION 3.1 35  Hanbell-Load NO (load solenoid wired to normal open) Screw Compressor  Hanbell-Load NC (load solenoi

MAGNUM VERSION 8 MANUAL REVISION 3.1 36 Circuit Base setup 7.6.3. Compressor information is provided per circuit in this section under the Ci

MAGNUM VERSION 8 MANUAL REVISION 3.1 37 This screen is an example of a variable capacity, screw, and compressor with EXV valves. Note the Typ

MAGNUM VERSION 8 MANUAL REVISION 3.1 38 The CENT V8 software will keep the last 60 seconds of samples for both amps and lift pressure. It will

MAGNUM VERSION 8 MANUAL REVISION 3.1 39 Compressor Speed Control 7.7.4.Compressor speed is controlled by the associated Analog Output. The sp

MAGNUM VERSION 8 MANUAL REVISION 3.1 4 SCROLL STEP 3 (38) Only with HVAC Software ...

MAGNUM VERSION 8 MANUAL REVISION 3.1 40 Purge Safety Switch SI - If this switch is on for longer than the value in Setpoint #164 “P-FaultTimer”

MAGNUM VERSION 8 MANUAL REVISION 3.1 41 7.8. Special Pattern for Scroll Compressors Special patterns have been developed for Trane Scroll 3-D

MAGNUM VERSION 8 MANUAL REVISION 3.1 42 # of Compressors and # of steps: Set up compressor: Set up Relay Outputs: Pattern of the three

MAGNUM VERSION 8 MANUAL REVISION 3.1 43 Setpoint can be manually changed to force a different compressor as the lead compressor or to enable au

MAGNUM VERSION 8 MANUAL REVISION 3.1 44 7.11. Compressor Anti-Cycle Logic When a compressor is to be turned off, the Magnum software will mak

MAGNUM VERSION 8 MANUAL REVISION 3.1 45 7.15. Hot Gas Bypass Control of the Hot Gas Bypass function will depend on which Setpoints are made a

MAGNUM VERSION 8 MANUAL REVISION 3.1 46 available options, it may not necessarily follow the first stage relay. Refer to section 12 for Relay O

MAGNUM VERSION 8 MANUAL REVISION 3.1 47  Network Run/Stop – If OFF the system will not run. This input is provided by another system on the n

MAGNUM VERSION 8 MANUAL REVISION 3.1 48 to be unloaded or if the discharge temperature has returned to normal after the time in Setpoint #101 “

MAGNUM VERSION 8 MANUAL REVISION 3.1 49 If running compressors at 100% is not desired, then the “Last Stage to 100% (Override Setpoint)” cell i

MAGNUM VERSION 8 MANUAL REVISION 3.1 5 7.38.HOT GAS REHEAT (HUMIDITY) CONTROL ...

MAGNUM VERSION 8 MANUAL REVISION 3.1 50 7.31. Control Power Relay (No Stop) This feature provides the capability to interrupt the power supply

MAGNUM VERSION 8 MANUAL REVISION 3.1 51 7.35. Vi Port Control Logic (Open Drive Screw only) The internal volume (Vi) of the open drive screw

MAGNUM VERSION 8 MANUAL REVISION 3.1 52 When this option is selected the Reheat Relay Outputs must be setup as follows: These Hot Gas Rehe

MAGNUM VERSION 8 MANUAL REVISION 3.1 53 7.39. Extra Liquid Line Solenoid Control Second and third Liquid Line Solenoids (economizers) are supp

MAGNUM VERSION 8 MANUAL REVISION 3.1 54 example if the target is 45.0F and Setpoint #119 is 10.0F, then the ambient temperature must be less th

MAGNUM VERSION 8 MANUAL REVISION 3.1 55  If during mechanical cooling mode the ambient temperature drops below the offset in Setpoint #119, t

MAGNUM VERSION 8 MANUAL REVISION 3.1 56 119 EcoOffsetON 10.0F 120 EconDelyFans 60s 121 EcoVlvMinVlv 0.0% 122 EcoVlvMaxVlv 100.0% 123 EcoVlv

MAGNUM VERSION 8 MANUAL REVISION 3.1 57 Example: Fluid Cooler with condenser compressor fans 7.40.6. The economizer AO has been selected and

MAGNUM VERSION 8 MANUAL REVISION 3.1 58 (Setpoint #123) to 10.0%. The economizer valve opening will be increased by this amount if the temperat

MAGNUM VERSION 8 MANUAL REVISION 3.1 59 that compressor. Make Setpoint #155 active with the low temperature value that will trigger the safety

MAGNUM VERSION 8 MANUAL REVISION 3.1 6 Status of Boiler Logic displayed by the Magnum ...

MAGNUM VERSION 8 MANUAL REVISION 3.1 60 The following charts show the control logic for the EXV’s with superheat control option.

MAGNUM VERSION 8 MANUAL REVISION 3.1 61

MAGNUM VERSION 8 MANUAL REVISION 3.1 62

MAGNUM VERSION 8 MANUAL REVISION 3.1 63 EXV Related Setpoints. 7.43.1.(Refer to section 13 Setpoints 9-20, 65-72, 109-110, 199-201, 205, 21

MAGNUM VERSION 8 MANUAL REVISION 3.1 64 EXV Maximum Operating Pressure 7.43.3.Setpoint #199 “MOP TARG PSI” must be active if the suction pre

MAGNUM VERSION 8 MANUAL REVISION 3.1 65 In the Compressor SI screen the active compressors information is to be completed as normal, while only

MAGNUM VERSION 8 MANUAL REVISION 3.1 66 Refrigerant Level Control 7.43.5.There is an alternate method to control the EXV based on Ref Leve

MAGNUM VERSION 8 MANUAL REVISION 3.1 67 50% × 35% = 17.5% Current EXV position (35%) + EXV adjustment (17.5%) = New EXV position (42.5%) 35% +1

MAGNUM VERSION 8 MANUAL REVISION 3.1 68 7.46. Motor Amps (08.00-R) Up to three sensors that measure amperage input can be specified per circui

MAGNUM VERSION 8 MANUAL REVISION 3.1 69 7.57. External Centrifugal Purge Control (08.01-P) Support for the Trane Purifier Purge operation has

MAGNUM VERSION 8 MANUAL REVISION 3.1 7 11.9.MCS COMPRESSOR CONTROL STATE CHART ...

MAGNUM VERSION 8 MANUAL REVISION 3.1 70 7.63. Normal Condenser Discharge Control Bypass (8.02-A) Depending on what option was selected in MCS-

MAGNUM VERSION 8 MANUAL REVISION 3.1 71 7.71. Tonnage and KW Information (8.03-F) KW Sensors 7.71.1. Unit KW – virtual sensor that calculate

MAGNUM VERSION 8 MANUAL REVISION 3.1 72 Supply and Return Temperatures – (Air only) Temperature sensors for Return and Supply air. Return Entha

MAGNUM VERSION 8 MANUAL REVISION 3.1 73 The Unit Tons value is selected in the “Evap. Tonnage” cell in the Evaporator Information panel under

MAGNUM VERSION 8 MANUAL REVISION 3.1 74 The following screen has been added to the status screens in the keypad display to show Tonnage/KW in

MAGNUM VERSION 8 MANUAL REVISION 3.1 75 The Magnum supports the following options:  No Condenser - No condenser specified.  RO Step Commo

MAGNUM VERSION 8 MANUAL REVISION 3.1 76 Note 2: Condenser staging is critical if the Magnum is to function in different climates. The best opt

MAGNUM VERSION 8 MANUAL REVISION 3.1 77 Specifies if the Fluid Cooler Economizer (if used) can use the condenser fans or VFD. Control Condense

MAGNUM VERSION 8 MANUAL REVISION 3.1 78 CND START % (Modulating Type) If active, then the value is the starting % for the AO when the RO that

MAGNUM VERSION 8 MANUAL REVISION 3.1 79 204 COND LOW AMB (Only HVAC) Standard condenser logic dictates that a newly started compressor will us

MAGNUM VERSION 8 MANUAL REVISION 3.1 8 2. Revision Page Date Author Description of Changes 11-03-09 RCT  Magnum Manual Rev 1.25 was used

MAGNUM VERSION 8 MANUAL REVISION 3.1 80 7.74.3.6. RO Step Common with a Fan AO and Condenser Faults The above example is the same as the prev

MAGNUM VERSION 8 MANUAL REVISION 3.1 81 # of Cond ROs –Total number of Relay Outputs of each compressor, in this example there are 3. The numb

MAGNUM VERSION 8 MANUAL REVISION 3.1 82 7.74.3.9. Modulating 7.74.3.9.1. Modulating Common This type of condenser uses water for condenser c

MAGNUM VERSION 8 MANUAL REVISION 3.1 83 For Common VFD Fan Condensers with Bypass: Time in seconds before the bypass can be used when a fault h

MAGNUM VERSION 8 MANUAL REVISION 3.1 84 7.74.3.9.2. Modulating Step Common When a RO is being used with an AO the AO will key off the RO tur

MAGNUM VERSION 8 MANUAL REVISION 3.1 85 7.74.3.10. RO Shared The RO Shared condenser has banks of fans that are shared between two consecut

MAGNUM VERSION 8 MANUAL REVISION 3.1 86 7.74.3.12. Common VFD Fan w/Bypass The Common VFD Fan with a Bypass type of condenser has one fan.

MAGNUM VERSION 8 MANUAL REVISION 3.1 87 When the discharge control pressure is greater than 250 psi the relay VFD ENABLE will be on and the VF

MAGNUM VERSION 8 MANUAL REVISION 3.1 88 Always On - If the unit is on then a pump will be on. Cycled On Temp - Pumps will be cycled on and off

MAGNUM VERSION 8 MANUAL REVISION 3.1 89 # Name Typical Value Description 159 B-VFD DELAY 30 500 1000 The time delay expressed as seconds

MAGNUM VERSION 8 MANUAL REVISION 3.1 9 12-09-11 BWW  Rev 2.5  Corrected section 7.60 MDP EXV Logic  Corrected section 13.2 Magnum Setpoi

MAGNUM VERSION 8 MANUAL REVISION 3.1 90 Status of Boiler Logic displayed by MCS Connect 7.75.3.The Boiler status is displayed by clicking on

MAGNUM VERSION 8 MANUAL REVISION 3.1 91 Screen 1 Screen 2 If there are more than 4 pumps addition screens will be displayed showing up to the

MAGNUM VERSION 8 MANUAL REVISION 3.1 92 If there are more than 4 boiler stages addition screens will be displayed showing up to the maximum o

MAGNUM VERSION 8 MANUAL REVISION 3.1 93 7.76. HVAC Defrost Cycle All types of compressors that are heat pumps will now support with the defros

MAGNUM VERSION 8 MANUAL REVISION 3.1 94 The action and termination in the “DEF PUMP DOWN” state is the same as “DEF PREPMP OUT”. When this stat

MAGNUM VERSION 8 MANUAL REVISION 3.1 95 However if Flow A indicates that there is flow then circuits 1 and 3 will be in a ready to run state an

MAGNUM VERSION 8 MANUAL REVISION 3.1 96 The relays must be set up as Pulse Relay type and the Pulse on Time (in tenth of second) and the Dela

MAGNUM VERSION 8 MANUAL REVISION 3.1 97 # Name Typical Value Description 217 CLLC VALVE TRG 50.0 30 10 50 The ‘Value’ is the target or min

MAGNUM VERSION 8 MANUAL REVISION 3.1 98 ZONE 3 VLV CLOSG (XX): The unit is stable and the condenser liquid level is in ZONE 3 below the targe

MAGNUM VERSION 8 MANUAL REVISION 3.1 99 Setpoints 1 (chilled water target), 2 (plus dead band) & 3 (negative dead band) are used in this de