Инструкция на Rooftops (крышные кондиционеры) Lennox серии GCS... с газовой системой подогрева бренда Lennox

SERVICE

UNIT INFORMATION GCS16 6-25 TON UNITS Corp. 9322-L3 Litho U.S.A. GCS16 SERIES GCS16 series units in the 6 ton and larger cooling size are packaged combination two-stage gas heat / two-stage dx cool units designed for commercial applications. Gas heat sections are designed with Lennox' aluminized…

SPECIFICATIONS - GCS16823 & GCS16953

Model No. *ARI Standard 210/240 Ratings GCS16823 GCS16953 Total cooling capacity (Btuh) 73,000 88,000 Total unit watts 8,110 9,780 EER (Btuh/Watts) 9.0 ARI Standard 270 SRN (Bels) Refrigerant (22) Charge 8.6 Stage 1 5 lbs. 10 oz. 6 lbs. 4 oz. Stage 2 5 lbs. 2 oz. 5 lbs. 14 oz. Blower wheel nominal…

GCS161353 & GCS161603

Model No. *ARI Standard St d d 210/240 Ratings or Standard 360 Ratings GCS161353 GCS161603 Total cooling capacity (btuh) 119,000 142,000 Total unit watts 13,220 16,820 EER (Btuh/Watts) 9.0 8.50 Integrated Part Load Value 8.8 8.8 ARI Standard 270 SRN (Bels) Refrigerant (22) Charge Stage 1 10 lbs. 12…

*ARI

Standard 360 Ratings Refrigerant (22) Ch Charge GCS161853 GCS161853235 GCS161853330 Total cooling capacity (btuh) 178,000 Total unit watts 20,300 EER (Btuh/Watts) 8.8 Integrated Part Load Value 9.6 Stage 1 Stage 2 7 lbs. bs 9 oz. o Stage 3 Blower wheel nominal diameter x width (in.) 18 x 18 Nominal…

*ARI

Standard 360 Ratings Refrigerant (22) Charge GCS162553 GCS162553235 Total Cooling Capacity (btuh) 210,000 Total Unit Watts 21,400 EER (Btuh/Watts) 9.8 Integrated Part Load Value 10.4 Stage 1 18 lbs. lbs 8 oz. oz Stage 2 Blower wheel nominal diameter x width (in.) Evaporator Blower and Di Drive…

*ARI

Standard 360 Ratings Refrigerant(22) Charge GCS162753 GCS162753235 GCS162753470 TotalCoolingCapacity(btuh) 240,000 TotalUnitWatts 26,700 EER(Btuh/Watts) 9.0 IntegratedPartLoadValue 9.7 Stage1 19 lbs 0 oz 19lbs.0oz. Stage2 Blowerwheelnom.diameterxwidth(in.) 20x18 Nominalmotorhorsepower…

*ARI

Standard 360 Ratings Refrigerant(22) Charge GCS163003 GCS163003235 GCS163003470 TotalCoolingCapacity(btuh) •284,000 TotalUnitWatts 33,400 EER(Btuh/Watts) 8.5 IntegratedPartLoadValue 9.1 Stage1 20 lbs 0 oz 20lbs.0oz. Stage2 Blowerwheelnom.diameterxwidth(in.) 20x18 Nominalmotorhorsepower…

OPTIONAL ACCESSORIES GCS16823 & GCS16953 (Ordered Extra)

OPTIONAL ACCESSORIES

GCS161853 (Ordered Extra) Unit Model No. GCS161853 **LPG Conversion Kit LB81509DA (12H31) Roof Mounting Frame RMF16185 (12H05) Economizer Dampers with Gravity Exhaust No. & size of filters (in.) Differential Enthalpy Control 54G44 Model No. No Power Exhaust Fans (DownFlo Only) 208/230 volt PED16185…

ELECTRICAL DATA

ModelNo. Linevoltagedata GCS16823 GCS161353 GCS161603 460v 208/230v 460v 208/230v 460v 208/230v 460v 11.4/11.4 (22.8) 5.3/5.3 (10.6) 14.8/14.1 (28.9) 7.7/7.1 (14.8) 17.3/17.3 (34.6) 9.6/9.6 (19.2) 27.1/17.9 (45.0) 14.2/10.0 (24.2) 66/66 (132.0) 35/35 (70.0) 130/130 (260.0) 64/64 (128.0) 150/150…

GCS16823 BLOWER PERFORMANCE

STATIC PRESSURE EXTERNAL TO UNIT Inches Water Gauge Air Volume ( f ) (cfm) .60 .70 .80 .90 1.00 1.10 1.30 1.50 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 2200 790 .75 835 .85 880 .90 920 1.00 960 1.10 1000 1.15 1075 1.35 1145 1.55 2400 815 .85 860 .95 900 1.05…

GCS161603 BLOWER PERFORMANCE

Air STATIC PRESSURE EXTERNAL TO UNIT Volume .20 .40 Inches Water Gauge .60 .70 .80 .90 1.00 1.10 1.30 1.50 (cfm) RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 4200 750 1.67 810 1.91 840 2.05 870 2.17 900 2.31 930 2.45 955 2.60 1010 2.90 1045 3.14 4400 710 1.59 770…

GCS161853330 BLOWER PERFORMANCE

STATIC PRESSURE EXTERNAL TO UNIT Air Volume (cfm) .20 .40 Inches Water Gauge .60 .70 .80 .90 1.00 1.10 1.30 1.50 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 5200 580 1.75 620 1.95 680 2.40 705 2.55 725 2.70 750 2.85 775 3.00 795 3.30 840 3.45 880 3.65 5400 590…

GCS162553235 & GCS162753235 BLOWER PERFORMANCE

STATIC PRESSURE EXTERNAL TO UNIT Inches Water Gauge Page 14 Air Volume ( f ) (cfm) RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 6000 445 1.45 470 1.60 490 1.70 515 1.85 540 2.05 560 2.15 585 2.35 605…

GCS162553470 & GCS162753470 BLOWER PERFORMANCE

STATIC PRESSURE EXTERNAL TO UNIT Inches Water Gauge Page 15 Air Volume ( f ) (cfm) RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 6000 450 1.50 470 1.60 495 1.75 520 1.90 545 2.10 570 2.25 590 2.45 615…

GCS163003235 BLOWER PERFORMANCE

STATIC PRESSURE EXTERNAL TO UNIT Air Volume ( f ) (cfm) RPM 6750 7000 7250 7500 7750 8000 8250 8500 8750 9000 9250 9500 9750 10,000 10,250 10,500 10,750 11,000 11,250 11,500 11,750 12,000 12,250 12,500 NOTE .20 Inches Water Gauge .60 .80 1.00 1.20 1.40 1.60 1.80 2.00 BHP RPM BHP RPM BHP RPM BHP RPM…

ACCESSORY AIR RESISTANCE

Total Resistance (inches water gauge) Unitt U Model M d l No. Air Volume V l (cfm) RTD11 StepDown Diffuser Wet Evaporator Coil REMD16M Downflo Economizer EMDH16M Horizontal Economizer 2 Ends Open 1 Side 2 Ends Open All Ends & Sides Open GCS16823 GCS16953 2400 2600 2800 3000 3200 3400 3600 3800 .12…

PED16185 & PED16300

POWER EXHAUST FANS PERFORMANCE Model No. CEILING DIFFUSER AIR THROW DATA Air Volume (cfm Exhausted) Return Air System Static Pressure (Inches Water Gauge) Model No. 4200 0 GCS16823 GCS16953 3800 .05 3500 .10 3200 .15 2700 .20 2200 .25 6300 0 5750 .05 5200 .10 4625 .15 PED16 185 PED16185 Air Volume…

1353/1603 PARTS ARRANGEMENT

1st STAGE EVAPORATOR 2nd STAGE EVAPORATOR HEAT EXCHANGER FILTER SECTION 2nd STAGE CONDENSER FAN COMBUSTION AIR BLOWER 2nd STAGE CONDENSER COIL HEATING CONTROLS GAS VALVE BURNERS 2nd STAGE COMPRESSOR BLOWER ACCESS INDOOR BLOWER COMPRESSOR AND CONTROL BOX ACCESS 1st STAGE COMPRESSOR 1st STAGE…

2553/2753/3003 PARTS ARRANGEMENT (SLAB COIL SHOWN)

HEAT EXCHANGER 2nd STAGE EVAPORATOR COMBUSTION AIR BLOWER HEATING CONTROLS BOX FILTER SECTION 2nd STAGE CONDENSER COIL 2nd STAGE CONDENSER FAN GAS VALVE BURNERS GAS VALVE INDOOR BLOWER BLOWER ACCESS 2nd STAGE COMPRESSOR 1st STAGE EVAPORATOR CONDENSER COIL AIR INTAKE 1st STAGE CONDENSER COIL CONTROL…

COMBUSTION AIR

GCS16-2553, 2753, 3003 UNIT CONTROL BOX

INDOOR BLOWER CONTACTOR K3 PILOT RELAY BOARD A11 CONTACTOR TRANSFORMER T18 FUSE F18 CONTROL TRANSFORMER T1 A11 T18 TB13 F10 F16 K3 T1 TB17 COMPRESSOR PROTECTOR A9 A9 COMPRESSOR PROTECTOR A10 A10 INDOOR BLOWER MOTOR FUSE F16 INDOOR BLOWER MOTOR OVERLOAD RELAY S42 FUSE F1 TERMINAL STRIP TB17 OUTDOOR…

6-Transformer T18 (2553, 2753, 3003 only)

GCS16 LOW VOLTAGE TERMINAL STRIP ALL UNITS T18 is a line voltage to 24VAC transformer used in 18.5 ton and larger units. T18 is identical to transformer T1 and is used to supply 24VAC power to contactors. TO INSERT OR RELEASE WIRE, DEPRESS CENTER WITH PEN OR SMALL SLOT SCREWDRIVER . 7-Transformer T3…

15-Indoor Blower Contactor K3 (all units)

OVERLOAD RELAY S42 K3 is a 24V to line voltage contactor used to energize the indoor blower motor in response to blower demand. In cool ing mode K3 is energized by pilot relay K46 in response to cooling or constant fan demand. In heating mode K3 is en ergized by relays K20 or K25 (in the heating…

PILOT RELAY BOARD A11

A11 W2 Y2 COIL Y1 COIL K66 COIL K67 C W1 K49 C COIL K77 C G K46 C COIL C NO NC NO NC BLOWER NO NC NO NC NO NC PILOT could potentially cause voltage 1st STAGE HEATPILOT drop resulting in contactor chatter 2nd STAGE ing. The pilot re HEAT PILOT lays are added be tween the thermo 2nd STAGE COOL PILOT…

TYPICAL HEAT EXCHANGER ASSEMBLY

UNITS EQUIPPED WITH SINGLE HEAT EXCHANGER PROVE SWITCH S18 (outer portion of motor housing) COMBUSTION AIR BLOWER MOTOR B6 COMBUSTION AIR BLOWER CAPACITOR C3 COMBUSTION AIR BLOWER HEATING CONTROLS BOX OR CONTROLS HAT SECTION HEAT EXCHANGE TUBES AIR BAFFLE GAS VALVE SPARK ELECTRODE (hidden from view)…

GCS16-823, -953, -1353, -1603 HEATING CONTROL COMPONENTS

COMBUSTION AIR BLOWER TRANSFORMER T3 (460V & 575V ONLY) T3 INDOOR BLOWER (LIMIT) RELAY K20 K20 BURNER IGNITION CONTROL A3 A3 2ND STAGE GAS HEAT DELAY DL3 DL3 BLOWER DELAY RELAY K25 K25 FIGURE 17 HEATING CONTROL COMPONENTS GCS16-1853 , -2553, -2753, -3003 UNITS EQUIPPED WITH SINGLE HEAT EXCHANGER 2ND…

C-Heating Control Box Components

Figures 17, 18 and 19. 6-2nd Stage Heat Relay K19 1-Transformer T3 460 (G) and 575 (J) voltage units use a line voltage to 230V autotransformer to power the combustion air blower. The autotransformer is connected directly to line voltage and is powered at all times. It has an output rating of 0.5A…

stage operation begins. When K19 contacts open (2nd

stage demand stops) time delay DL3 is de-energized and reset immediately. When DL3 resets, the 2nd stage opera tor of the gas valve is de-energized and closed. 10-Blower Delay Relay K25 FENWAL IGNITION CONTROL TOP VIEW POWER (24VAC INPUT) TO GAS VALVE (24VAC OUTPUT) TO FLAME SENSOR A heat type…

ÉÉÉ

NORMAL IGNITION SEQUENCE TIMINGS NOMINAL ON / CLOSED OFF / OPEN ÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉ ÉÉ ÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉ SECONDS 05 30 THERMOSTAT DEMAND COMBUSTION AIR BLOWER COMBUSTION AIR PROVE SWITCH GAS VALVE IGNITION SPARK BLOWER IGNITION TRIAL ÉÉÉ ÉÉÉ 35 70 END OF…

b-Orifice

slowly. On a heating call, the first stage operator opens im mediately to begin first stage heating operation (first incre ment). At the same time, the second stage operator begins opening slowly (second increment). The second stage op erator reaches full open after approximately 90 seconds. Each…

S21 is also wired in series with the ignition control. It func

tions in the same manner as S10 but is factory set to trip at 140F +6F on a temperature rise and automatically reset at 100F +7F on a temperature fall. This is a secondary safety shut-down function of the unit. I-Combustion Air Prove Switch S45 In dual heat exchanger models, both heat exchangers are…

WHITE-RODGERS GAS VALVE GV1 The Combustion air blower in all GCS16 units uses a 208/230V singlephase PSC ballbearing motor which re quires a run capacitor. The capacitor is rated as shown in Table 3. Capacitor C3 is connected to combustion air blow er B6. In dual heat exchanger models, C11 is…

During ignition spark travels through the spark (left) elec

N-Cooling Components trode and ignites the left burner. Flame travels from burner to burner until all are lit. When flame is sensed by the right elec trode (rightmost burner lit - indicated by microamp signal through the flame) sparking stops. During operation, flame is sensed by current passed…

GCS16-1353,1603 END VIEW COMPRESSOR COMPARTMENT

2nd STAGE EXPANSION VALVE (2) 2nd STAGE CONDENSER FAN FAN CAPACITORS (2) CONTROL BOX FAN ORIFICES (S) SUCTION MANIFOLD (2) 1st STAGE CONDENSER FAN 1st STAGE THERMOMETER WELL EVAPORATOR (2) FREEZESTATS (2) S49 and S50 FILTER RACK LIQUID LINE SERVICE PORT THERMOMETER WELL SUCTION LINE SERVICE PORT…

LEFT CONDENSER COIL

(COMPRESSORS 2 AND 3) GCS16-1853 PLUMBING COMPONENTS CONDENSING SECTION - LIQUID LINES EVAPORATOR COIL RIGHT CONDENSER COIL (COMPRESSORS 1 AND 3) COMPRESSOR TERMINAL BOX THERMOMETER WELL AND GAUGE PORT PUMP 3 THERMOMETER WELL AND GAUGE PORT PUMP 2 FILTER/DRIER THERMOMETER WELL AND GAUGE PORT PUMP 1…

GCS16823, 953, 1353, 1603 EVAPORATOR PLUMBING

FREEZESTAT S50 2nd STAGE EVAPORATOR COIL 2 SUCTION LINE 1st STAGE EVAPORATOR COIL LIQUID LINE 2nd STAGE EXPANSION VALVE 1 FREEZESTAT S49 LIQUID LINE 1ST STAGE EXPANSION VALVE FIGURE 34 GCS16-1853 PLUMBING COMPONENTS EVAPORATOR SECTION SUCTION LINE 2nd STAGE COMP. 3 EVAPORATOR COIL LIQUID LINE…

2nd STAGE

COMP. 2 EVAPORATOR COIL GCS162553, 2753, 3003 PLUMBING COMPONENTS EVAPORATOR SECTION 2 2nd STAGE SUCTION RETURN TO COMPRESSOR 2nd STAGE LIQUID LINE FROM OUTDOOR COIL 1 DUAL 2nd STAGE EXPANSION VALVES 1st STAGE COMP. 1 EVAPORATOR COIL 1st STAGE LIQUID LINE FROM OUTDOOR COIL 1st STAGE SUCTION RETURN…

When discharge pressure drops below 25+5 psig (indicat ing a loss of charge in the system) the switch opens and the compressor is de-energized. The switch automatically CAUTION resets when refrigerant is added and pressure in the dis charge line rises above 55+5 psig. Selfregulating crankcase…

7-Condenser Fans B4 and B5

TABLE 5 The specifications tables on pages 2-6 in this manual shows the specifications of condenser fans used in GCS16 series units. Condenser fans in all GCS16 units (all voltages) use three-phase motors which do not require a run capacitor. GCS16823 and GCS16953 units are equipped with a single…

IV-PLACEMENT AND INSTALLATION

MAKE-UP BOX 12.5 TON AND LARG ER UNITS ONLY Make sure that the unit is installed in accordance with the installation instructions and all applicable codes. See ac cessories section for conditions requiring use of the op tional roof mounting frame (RMF16). TO INSERT OR RELEASE WIRE, DEPRESS CEN TER…

C-Heating Startup

WARNING 1- Set thermostat to OFF position. Close manual knob on gas valve(s). Do not exceed nameplate charge under any con ditions. Compressor damage will result. 2- Wait five minutes. 3- Open manual knob on gas valve(s), replace burner access door and turn on unit electrical supply. 4- Set the fan…

Before checking piping, check with gas company or au

thorities having jurisdiction for local code requirements. Refer to the GCS16 Operation and Installation Instruction Manual for more information. GAS PIPING COMPONENTS REFER TO INSTALLATION INSTRUCTIONS GROUND JOINT UNION FIELD PROVIDED 1/8" PRESSURE TAP MANUAL MAIN SHUT-OFF VALVE (REFER TO LOCAL…

TABLE 7

MANIFOLD PRESSURE ALL GCS16 SERIES UNITS* Operating Pressure (outlet) in. W.C. Stage Natural L.P. First (Low Fire) 1.6 + 0.2 5.5 + 0.3 Second (High Fire) 3.7 + 0.3 10.5 + 0.5 First (Low Fire) Second (High Fire) 3.7 + 0.3 3.7 + 0.3 10.5 + 0.5 10.5 + 0.5 *Maximum inlet pressure for all gas valves is…

6- Turn on power to unit. Follow lighting instructions

attached to unit and operate unit in heating mode. Check burner flames. They should be blue with yellow streaks. NOTE-If the unit is operated with the heating access panel off and burners cold, the burner sound will in creased due to cold, dense primary air. This is normal and will subside as the…

2- Remove lead from sensing electrode and install a

0-50DC microamp meter in series between the sensing electrode and the sensing lead. 3- Reconnect power and adjust thermostat for heat ing demand. 4- When flame is established, meter reading should be 8 to 20 microamps. Do not bend electrodes. 5- Disconnect power to unit before disconnecting meter.…

BLOWER SPEED ADJUSTMENT

MOTOR MOUNTING PLATE BLOWER KEY TO INCREASE CFM TURN PULLEY CLOCKWISE TO INCREASE BELT TENSION 1 - Loosen 2 locking bolts. 2 - Pull motor mounting plate. 3 - Tighten motor mounting plate so plate is vertical. SET SCREW TO DECREASE CFM TURN PULLEY COUNTERCLOCKWISE MEASURE RPM HERE BLOWER PULLEY MOTOR…

X-ACCESSORIES

This section describes the application of most of the op tional accessories which can be connected to the . Some of the accessories (for example, the Warm Up Control Kit) are described in the commercial controls section of this manual. A-RMF16 Mounting Frame When installing a unit on a combustible…

Optional differential enthalpy control may be added to any

economizer to monitor both indoor and outdoor air condi tions. With differential enthalpy installed, the economizer selects the lowest of the two enthalpy conditions to satisfy cooling demand. Refer to the REMD16M installation instruction for specific installation details. Refer to the operation…

2-EMDH16M Horizontal Economizer

(823, 953, 1353, 1603 only) b-PED16 Power Exhaust Damper (1853, 2553, 2753, 3003 only) TABLE 10 Optional PED16 POWER EXHAUST power exhaust FAN PERFORMANCE fans (figure 54) are Air Return Air System used in conjunction Volume Static Pressure (cfm) (inches Water Gauge) with REMD16M Exhausted)…

PED16 CONTROL KIT

PED16 CONTROL KIT (ordered separately) J24 P24 J3 P18 from PED16 FILTER ACCESS PANEL J18 TRANSFORMER AND FUSES ON 575 VOLT UNITS ONLY 2 BLUE WIRES TO MERCURY SWITCH FIGURE 55 PED16 AND ENTHALPY CONTROL INSTALLATION Optional differential enthalpy control may be added to any economizer to monitor both…

b-Minimum Positioner

ENTHALPY CHART The second type of adjustment which may be made at the control is the minimum position of the outdoor damper blades. Each economizer has a minimum positioner switch (potentiometer) which allows the outdoor dampers to be adjusted to a preset minimum position. This allows a preset…

REMD16

MIXED AIR SENSOR LOCATION REMD16M ENTHALPY CONTROL/RELAY KIT ENTHALPY CONTROL MIXED AIR SENSOR RELAY P4 TO MIXED AIR SENSOR J3 J9 FILTER WIRE TIE REMD16M DAMPERS WIRE TIES P9 FIGURE 59 e-Wiring, Installation, Maintenance The economizer uses harness plugs to connect to the unit harness connector…

2- Install jumper across contactor K3-2 terminals

(see unit diagram) in unit control box. Install jump er across enthalpy control terminals T and T1. See figure 63 for terminal location. 1- Disconnect power. Turn thermostat to OFF posi tion (occupied mode). REMD16M INSTALLATION UNIT REMD16 INTAKE FILTERS HOOD ECONOMIZER CONTROLS VERTICAL MULLION…

G-Cycle Control Kit (Figure 64)

hen applied to unit with electromechanical thermostat, pre vents frequent cycling caused by thermostat diddling or ther mostat bulb vibration. The cycle controls require minimum on and minimum off times before compressors can be energized or deenergized. The cycle controls plugin to the No field wir…

H-Low Ambient Kit (all units)

LOW AMBIENT KIT TYPICAL INSTALLATION The optional low ambient kit (figure 65) allows for mechan ical cooling operation at low outdoor temperature. NOTESee CAUTION. LOW AMBIENT PRESSURE SWITCH HIGH PRESSURE SWITCH COMPRESSOR CAUTION Compressor monitor (Low Ambient Lockout Switch) S3 cannot be used…

1-SP11 Application

The SP11 may be applied to any control system. To operate an SP11, a readout relay kit including an elec tric heat current sensing relay is required to interface the ECH16 to the SP11. Optional filter switch kit must be added in order to make the filter light functional. Heat Mode AUTO OFF COOL e…

J-Commercial Controls Hardware

All GCS16 units are factory equipped with the hardware required to connect and operate Lennox' Commercial Controls (W973, W7400, economizer, warm-up, etc...). The hardware consists of an economizer wiring harness, a control system wiring harness and associated jackplugs. The economizer and control…

10- Jack J57 / (opt. Plug P57)

(used in 15 ton and larger units only) Jack J57 is located in the unit control box. It is wired to the unit wiring harness and to jack J25 and is used for the connection of an optional dirty filter" indicator switch to the optional status panel. The matching plug P57 is located in dirty filter"…

CMC3-1 time clock and night thermostat must be

used. All wiring connections are made by jackplug connec tions to the commercial controls harness in the unit. Plug P8 in the warm up kit connects to Jack J3 in the unit to make this connection. Jack J8 in the warm up kit connects to Plug P4 in the economizer. Thermo stat wiring connections are made…

CAUTION

WARNING Do not connect a warm-up kit to a W7400 relay kit or to a system using a T7300. Warm-up kit wiring is not compatible with these control systems and component damage will result. These control sys tems have a warm-up feature built in. A warm-up kit is not needed. Connect only relay kits…

6- C3 Wiring Diagram

Flexstat L2F-N for units without economizer or warmup. Setback is built in. Wiring connections are made to the unit's low voltage terminal strip. W7400 CONTROL SYSTEM Control Module NOTE - Flexstat (C3 and C4 diagrams) was discontin ued as a control system option in July 1989 and is not shown in the…

The W973 is used only with the C81 and C141 wiring

diagrams. It cannot be used with any other control sys tem options or control damage will result. The Honeywell W973 control, when added to a GCS16, allows use of electronic ramping" thermo stats, discharge temperature sensors, return air tem perature sensors and/or remote thermostats and…

XI-WIRING DIAGRAMS AND OPERATING SEQUENCE

B1 diagram with C1 diagram GCS16-823 or -953 with basic standard thermostat Page 64

C1 DIAGRAM WITH B1 DIAGRAM

Page 65 Electromechanical Thermostat Connected to GCS16-823 or GCS16953 (Without Economizer) Heating Demand: The diagrams in this section are used to represent the relationship of GCS16 electrical components and to show the step by step sequence that 9- On a call for first stage heating (W1), demand…

B2 diagram with C1 diagram GCS16-1353 with basic standard thermostat

Page 66

C1 DIAGRAM WITH B2 DIAGRAM

Page 67 Electromechanical Thermostat Connected to GCS16-1353 (Without Economizer) B-GCS16-1353 11- When S18 closes a 24VAC circuit is completed through the heating safety switches to energize burner ignition control A3. Operation Sequence: C1 and B2 Sections (electromechanical thermo stat wired to…

B2 diagram with C1 diagram GCS16-1603 with basic standard thermostat

Page 68

C1 DIAGRAM WITH B2 DIAGRAM

Page 69 Electromechanical Thermostat Connected to GCS16-1603 (Without Economizer) 11- As the combustion air blower approaches full speed, combustion air C-GCS16-1603 blower prove switch (S18) closes. Operation Sequence: C1 and B2 Sections (electromechanical ther mostat wired to GCS16-1603) 12- When…

B9 and A8diagrams with C1 diagram GCS16-1853 with basic standard thermostat

Page 70

Electromechanical Thermostat Connected to GCS16-1853 with 235,000 or 330,000 BTUH Input Heat (Without Economizer) Page 71 D-GCS16-1853 Operation Sequence: C1 and B9 and A8 Sections (electromechanical thermostat wired to GCS16-1853) The GCS161853 and CHA161853 are the only units in the Lennox…

GCS16-2753-235

B41 and A8diagrams with C1 diagram GCS16-2553-235, or GCS16-3003-235 with basic standard thermostat Page 72

Electromechanical Thermostat Connected to GCS16-2553, -2753 or -3003 with 235,000 BTUH Input Heat (Without Economizer) Page 73 E-GCS16-2553235, GCS162753235 or GCS163003235 Operation Sequence: C1 and B9 and A8 Sections (electromechanical thermostat wired to GCS16) The GCS162553 and CHA162553 and…

GCS16-2553-470, GCS16-2753-470 or GCS16-3003-470 with basic standard thermostat Page 74

Electromechanical Thermostat Connected to GCS16-2553, -2753 or -3003 with 470,000 BTUH Input Heat (Without Economizer) Page 75 F-GCS162553470, GCS162753470 or GCS163003470 Operation Sequence: C1 and B41 and A8 Sections (electromechanical thermostat wired to GCS16) The GCS162553 and CHA162553 and…

C1 diagram with D5 diagram

electromechanical thermostat with modulating economizer Page 76

C1 DIAGRAM WITH D5 DIAGRAM

Electromechanical Thermostat with Economizer Page 77 G-REMD16M When a REMD16M economizer section is applied to the CHA16-1853 with electromechanical thermostat, three stages of cooling are available dependent on the actions of the economizer en thalpy control. By sensing outdoor temperature and…

C2-1 diagram with D5 diagram

electromechanical thermostat with modulating economizer and warm-up Page 78

C2-1 DIAGRAM WITH D5 DIAGRAM

Electromechanical Thermostat Connected to CHA16-1853 with Economizer and WarmUp H-WARMUP KIT An optional feature of the REMD16M economizer is a warmup kit which holds the economiz er outdoor air dampers closed during night heat operation and while the CHA16 is warming the building the morning after.…

Инструкция на Rooftops (крышные кондиционеры) Lennox серии GCS... с газовой системой подогрева

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