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GUARDIAN
HVAC and Lighting Control Unit for
Supermarkets and Coldstores
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Operation and Setup Manual
GUARDIAN HVAC-14 Controller is a mains powered, rail-mounted HVAC & Lighting
Controller for supermarkets which is configurable as either :-
•
HVAC - Temperature and humidity control and monitoring for heating, cooling and/or
dehumidification of the SALESFLOOR ambient air using the salesfloor temperature
and humidity probes.
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SALE - Temperature control and humidity monitoring for heating, cooling and fresh
air dampers for the SALESFLOOR ambient air.
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PLANT - Temperature dependent PLANTROOM staged ventilation control with
additional time-scheduled heating, lighting or ventilation control outputs with overload
detection.
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STORE - Similar facilities to Plantroom for time-scheduled STOREROOM staged
ventilation control.
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PFAN - Industrial condenser control of pump and 2-speed fans on discharge
pressure. A timeclock is available.
Local temperature displays and modification of all timeclocks, alarm and control settings is
available when the unit is connected to the optional GUARDIAN SKD-8 Serial Keypad
Display.
GUARDAIN HVAC-14
HVAC-14
Average temperature & humidity control
Heat Reclaim & 2-stage heating
Economy Dampers & 2-stage cooling
Timeclock, temperature & fan control
Temperature & overload alarms
HVAC dehumidification setpoint optimization option for
minimum energy
Local panel display and setup
Remote communications to GUARDIAN Autograph Terminal
GUARDIAN
Tel. +44 (0) 1270 760599
Fax. +44 (0) 1270 766804
Email:
sales@Guardian-controls.com
www.Guardian-controls.com
Page 1
Issue 1.1
01/05/97
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Table of Contents
Summary of Contents for Guardian Controls International HVAC-14
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Page 1: Guardian
• Remote communications to GUARDIAN Autograph Terminal Operation and Setup Manual GUARDIAN HVAC-14 Controller is a mains powered, rail-mounted HVAC & Lighting Controller for supermarkets which is configurable as either :- • HVAC - Temperature and humidity control and monitoring for heating, cooling and/or dehumidification of the SALESFLOOR ambient air using the salesfloor temperature and humidity probes. -
Page 2: Table Of Contents
UNIT MODELS ..................9 Available unit models (HVAC-14) ..................9 GENERAL SPECIFICATION ..................... 9 HVAC-14 Model ‘SALE’ Input/Output Signals ............... 10 HVAC- 14 Model ‘SALE’ Termination Wiring ..............11 HVAC-14 Model ‘Stor’ Input/Output Signals ..............12 HVAC- 14 Model ‘Stor’ Termination Wiring..............13 HVAC-14 Model ‘PLnt’... - Page 3 HVAC Timeclock ......................42 INDEX ....................43 SETUP / COMMISSIONING PARAMETERS........44 PP05 (Level 1) Settings ....................44 PP07 (level 3) Menu Settings ..................45 PP09 (level 2) Menu Settings ..................46 PP11 (level 3) Menu Settings ..................50 GUARDAIN HVAC-14 Issue 1.1 01/05/97...
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Page 4: Getting Started
The SKD.9 is connected to the GUARDIAN controller via a 6-core telephone cable. The SKD.9 Keyswitch/Display comprises a plastic enclosure housing a PCB with four membrane pushbuttons, four LED displays and a 2-position Keyswitch. GUARDAIN HVAC-14 Issue 1.1 01/05/97... - Page 5 Page 5 GUARDAIN HVAC-14 Issue 1.1 01/05/97...
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Page 6: Button Operation Shorthand
‘L’ (LOW VOLTAGE) operate at 24vac Models with BLACK labels and no suffix ( NORMAL 230vac) operate at 230vac 230vac MAINS SUPPLY WILL DAMAGE A BLUE LABEL CONTROLLER !!! A BLACK label controller will not work with a 24vac supply GUARDAIN HVAC-14 Issue 1.1 01/05/97... -
Page 7: Configure Unit Model, System No & Address
( e.g. HVAC) Select System No and Address e.g. setup unit for system 60 case 1 at address 180 Enter Passcode as button sequence as above GUARDAIN HVAC-14 Issue 1.1 01/05/97... -
Page 8: Rs485 Communications
Terminal PC for central alarm monitoring and temperature display. Control setpoints, defrost times and alarm limits may then be sent to the controller from the PC rather than using the SKD9 Keyswitch display. For further details see page 40 GUARDAIN HVAC-14 Issue 1.1 01/05/97... -
Page 9: Unit Models
110 / 230 Vac 50 hz 10VA Operation 0 to 55ºC Approx. dimensions Width 70 x length 100 x height off rail 110mm. The HVAC-14 controller is housed in a DIN rail mounting enclosure with 20 screw clamp connectors. GUARDAIN HVAC-14 Issue 1.1 01/05/97... -
Page 10: Hvac-14 Model 'Sale' Input/Output Signals
Page 10 HVAC-14 Model ‘SALE’ Input/Output Signals SALE - Temperature control and humidity monitoring for heating, cooling and fresh air dampers for the SALESFLOOR ambient air. Heating and cooling stages are controlled relative to the store temperature setpoint Humidity is for monitoring only. Control is inhibited if the supply air input is not present... -
Page 11: Hvac- 14 Model 'Sale' Termination Wiring
Page 11 HVAC- 14 Model ‘SALE’ Termination Wiring GUARDAIN HVAC-14 Issue 1.1 01/05/97... -
Page 12: Hvac-14 Model 'Stor' Input/Output Signals
Page 12 HVAC-14 Model ‘Stor’ Input/Output Signals • STORE - Similar facilities to Plantroom for time-scheduled STOREROOM staged ventilation control. Storetroom control outputs all works on timeclock 1 Other outputs can be selected to work of timeclock 1 or 2... -
Page 13: Hvac- 14 Model 'Stor' Termination Wiring
Page 13 HVAC- 14 Model ‘Stor’ Termination Wiring GUARDAIN HVAC-14 Issue 1.1 01/05/97... -
Page 14: Hvac-14 Model 'Plnt' Input/Output Signals
Page 14 HVAC-14 Model ‘PLnt’ Input/Output Signals • PLANT - Temperature dependent PLANTROOM staged ventilation control with additional time-scheduled heating, lighting or ventilation control outputs with overload detection. Plantroom control outputs all works on timeclock 1 Other outputs can be selected to work of timeclock 1 or 2... -
Page 15: Hvac- 14 Model 'Plnt' Termination Wiring
Page 15 HVAC- 14 Model ‘PLnt’ Termination Wiring GUARDAIN HVAC-14 Issue 1.1 01/05/97... -
Page 16: Hvac-14 Model 'Hvac' Input/Output Signals
Page 16 HVAC-14 Model ‘HvAC’ Input/Output Signals • HVAC - Temperature and humidity control and monitoring for heating, cooling and/or dehumidification of the SALESFLOOR ambient air using the salesfloor temperature and humidity probes. • HAVC Analogue Inputs Humidity HA 4-20mA... -
Page 17: Hvac- 14 Model 'Hvac' Termination Wiring
Page 17 HVAC- 14 Model ‘HvAC’ Termination Wiring GUARDAIN HVAC-14 Issue 1.1 01/05/97... -
Page 18: Hvac Control
It is also run out of hours if timeclock 1 is OFF and average salesfloor temperature is >24C or <17C HVAC is controlled on T1 Fan speed-1 is run if not OFF when store open hours Timeclock 1 is ON HVAC Healthy goes off if any alarm is detected. GUARDAIN HVAC-14 Issue 1.1 01/05/97... -
Page 19: Hvac-14 Model 'Pfan' Input/Output Signals
Page 19 HVAC-14 Model ‘PFAN’ Input/Output Signals • PFAN - Industrial condenser control of pump and 2-speed fans on discharge pressure. A timeclock is available. PFAn Analogue Inputs Digital Inputs Trip 1 Not available Trip 2 Not available Trip 3... -
Page 20: Hvac- 14 Model 'Pfan' Termination Wiring
Page 20 HVAC- 14 Model ‘PFAN’ Termination Wiring GUARDAIN HVAC-14 Issue 1.1 01/05/97... -
Page 21: Operation
. Display of other temperatures and humidity by pressing ’next’ button, the values displayed depend on the unit model selected. Passcode protected setup of controller setpoints, timers and limits. next raise lower enter keyswitch GUARDAIN HVAC-14 Issue 1.1 01/05/97... -
Page 22: Display Indications
Present Setpoint for heating/cooling /123 Relay output states R1 to R3 4567 Relay output states R4 to R7 H-Ab Input and timeclock status H Supply air healthy - Input off A Timeclock 1 on b Timeclock 2 on GUARDAIN HVAC-14 Issue 1.1 01/05/97... -
Page 23: Store/Plant Room Display (Stor, Plnt)
Present Setpoint for heating /123 Relay output states R1 to R3 4567 Relay output states R4 to R7 H-Ab Input and timeclock status H Fan 6 overload healthy - Input off A Timeclock 1 on GUARDAIN HVAC-14 Issue 1.1 01/05/97... - Page 24 Page 24 b Timeclock 2 on SEt/ Go to Setup Mode when press GUARDAIN HVAC-14 Issue 1.1 01/05/97...
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Page 25: Salesfloor Display (Hvac) With Dehumidification
COOL Control action is cool only, fixed setpoint (Fcnn). Liquid valves staged open. Air Control action is reheat only, variable setpoint. Reheat setpoint is 1 degree above ambient air temperature. Liquid valve closed. GUARDAIN HVAC-14 Issue 1.1 01/05/97... - Page 26 Relay output states R1 to R3 4567 Relay output states R4 to R7 H-Ab Input and timeclock status H Supply air healthy - Input off A Timeclock 1 on b Timeclock 2 on SEt/ Go to Setup Mode when press GUARDAIN HVAC-14 Issue 1.1 01/05/97...
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Page 27: Industrial Condenser Control (Pfan)
4567 Relay output states R4 to R7 H-Ab Input and timeclock status YYYY = H Trips healthy - Input off A Timeclock 1 on b Timeclock 2 on SEt/ Go to Setup Mode when press GUARDAIN HVAC-14 Issue 1.1 01/05/97... -
Page 28: Alarm Indications
Alarm Guardtime count is reset each time the discharge air returns within limits. Alarm states Hi and Lo are automatically reset when the discharge air returns within limits. Probe Fails Alarm Indications: /OC/ Open circuit probe /SC/ Short circuit probe GUARDAIN HVAC-14 Issue 1.1 01/05/97... -
Page 29: Useful Button Sequences
This unit model is ’HVAC’ End= ==23 Select Stub, Case No and Address Useful Button Sequences: e.g. setup unit for system 60, case 1, at address 180 Unit Sn01 Sn60 Sn60 Cn01 Cn01 A001 /:< A180 A180 End= ==26 GUARDAIN HVAC-14 Issue 1.1 01/05/97... -
Page 30: Setup Operation
PP11 menu page 39 PP09 menu page 33 PP05 Menu Press to sequence through the following PP05 menu selections Press to select the displayed menu Unit HVAC-14 unit identity Page 31 tESt Test relays Page 31 End/ Return to normal operation GUARDAIN HVAC-14 Issue 1.1... -
Page 31: Setup Functions (Level 1) Passcode 05
Repeatedly press to switch the relays on and off 1OFF 1/on Relay R1 2OFF 2/on Relay R2 etc. to 7OFF 7/on Relay R7 All outputs return to automatic control when SETUP is ended GUARDAIN HVAC-14 Issue 1.1 01/05/97... - Page 32 Page 32 End/ Return from Setup to normal operation GUARDAIN HVAC-14 Issue 1.1 01/05/97...
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Page 33: Setup Functions (Level 2) Passcode 09
Press to accept the settings rhnn Real clock time hours nn = 0 to 23 hrs rtnn Real clock time nn = 0 to 59 mins minutes YYYY Weekday YYYY = Sun/nnon/tuE/uuEd/tHu/Fri/SAt GUARDAIN HVAC-14 Issue 1.1 01/05/97... - Page 34 = 0.0 to 5.0 relative cutin 3Cn.n Highspeed Fans n.n = 0.0 to 5.0 relative cutin cCn.n Condenser n.n = 0.0 to 5.0 differential cutout tnnn Highspeed to nnn = 0 - 225 secs Lowspeed delay GUARDAIN HVAC-14 Issue 1.1 01/05/97...
- Page 35 = 0.0 to 5.0 differential cutin 2Hn.n Heating Stage 2 n.n = 0.0 to 5.0 differential cutin 3Hn.n Heating Stage 3 n.n = 0.0 to 5.0 differential cutin cHn.n Heating differential n.n = 0.0 to 5.0 cutout GUARDAIN HVAC-14 Issue 1.1 01/05/97...
- Page 36 1Fnn Sunday time off minutes nn = 00 to 59 etc. IF time on = time off then timeclock always ON IF time on = 0 or time off = 0 then timeclock always OFF GUARDAIN HVAC-14 Issue 1.1 01/05/97...
- Page 37 (dCnn) and reheat setpoint (dHnn). Liquid valves staged open. Fresh air dampers ( R1) are open if the outside air temperature is between 14 and 20°C and cooling is required (salesfloor temperature > cooling setpoint). GUARDAIN HVAC-14 Issue 1.1 01/05/97...
- Page 38 Press to accept the settings Cdn.n Cooling stage delay n.n = 0.0 to 5.0 minutes Hdn.n Heating stage delay n.n = 0.1 to 5.0 minutes End/ Return from SETUP to normal operation GUARDAIN HVAC-14 Issue 1.1 01/05/97...
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Page 39: Setup Functions (Level 3) Passcode 11
YYYY = 9600 nonE 'nonE' removes PC FAIL if no PC present 8Y-n Parity selection 8Y-n = parity selection:- 8n_2, 8e_1, or 8n_1 oFF/ Future log modes End/ Return from SETUP to normal operation GUARDAIN HVAC-14 Issue 1.1 01/05/97... -
Page 40: Communications
All communication is via a daisy chain RS485 link which connects all HVAC-14 units in series with all other Guardian units. Communication commands and replies are checked for parity and block length and automatically retransmit if errors are detected. -
Page 41: Hvac14 Hvac Detaill
Page 41 HVAC14 HVAC Detaill HVAC (HVAC ) Setpoints GUARDAIN HVAC-14 Issue 1.1 01/05/97... -
Page 42: Hvac Timeclock
Page 42 HVAC Timeclock GUARDAIN HVAC-14 Issue 1.1 01/05/97... -
Page 43: Index
Guardtime ..........25 tESt ........... 28 Probe Fails.........25 Unit............ 28 Temperature Alarms ......25 PP09 Menu ........... 29 Available unit models (HVAC-14).....7 PP09 Menu Settings BUTTON OPERATION SHORTHAND ..5 COOL ..........34 COMMUNICATIONS ......36 dELy ..........34 CONFIGURE UNIT MODEL, SYSTEM No FCSt .......... -
Page 44: Setup / Commissioning Parameters
SALE SALE PFAn Display type Stub number Sn01 Sn01 Sn80 Case number (1 to 4) Cn 1 Cn 1 Cn 4 Autograph address number A255 A 00 A255 Digital alarm detection and display ndAd ndAd GUARDAIN HVAC-14 Issue 1.1 01/05/97... -
Page 45: Pp07 (Level 3) Menu Settings
Digital input - g Alarm type nonE g-AL Guardtime for input g mins g 00 g 00 g 99 Digital input - h Alarm type nonE h-AL Guardtime for input h mins h 00 h 00 h 99 GUARDAIN HVAC-14 Issue 1.1 01/05/97... -
Page 46: Pp09 (Level 2) Menu Settings
3C0.0 3C5.0 Cooling differential cutout °C cC0.0 cC0.0 cC5.0 Heat reclaim differential cutin °C 1H0.0 1H0.0 1H5.0 Heating Stage 2 differential cutin °C 2H0.0 2H0.0 2H5.0 Heating Stage 3 differential cutin °C 3H0.0 3H0.0 3H5.0 GUARDAIN HVAC-14 Issue 1.1 01/05/97... - Page 47 Page 47 Heating differential cutout °C cH0.0 cH0.0 cH5.0 GUARDAIN HVAC-14 Issue 1.1 01/05/97...
- Page 48 Friday Time On Hours Friday Time On Minutes mins Friday Time Off Hours Friday Time Off Minutes mins Saturday Time On Hours Saturday Time On Minutes mins Saturday Time Off Hours Saturday Time Off Minutes mins GUARDAIN HVAC-14 Issue 1.1 01/05/97...
- Page 49 Friday Time On Hours Friday Time On Minutes mins Friday Time Off Hours Friday Time Off Minutes mins Saturday Time On Hours Saturday Time On Minutes mins Saturday Time Off Hours Saturday Time Off Minutes mins GUARDAIN HVAC-14 Issue 1.1 01/05/97...
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Page 50: Pp11 (Level 3) Menu Settings
Heating stage delay minutes mins Hd0.0 Hd0.0 Hd5.0 PP11 (level 3) Menu Settings unit ACTUAL Default Min. Max. settings setting setting setting bAud Communications baud rate 9600 9600 nonE Parity selection Future log modes list GUARDAIN HVAC-14 Issue 1.1 01/05/97...
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