Votos - 2, Puntuación media: 3.5
(
)
)
|
Resumen del manual
Step 4 — Install Control Wiring Be sure all power to the unit is off before proceeding. Lock out and safety-tag all disconnects. Wires between field-installed components and unit control box must be enclosed in field-supplied conduit. Follow all local codes and NEC (National Electrical Code, U.S.A.). Wire size must be no. 16 AWG (American Wire Gage) (1.5 mm2) minimum. See Fig. 4 and 5 for field wiring. 30HX UNITS — Remove the screws holding the right-side access panel to the unit control box. Open the right-side access panel. Route wires through field-supplied conduit and attach the conduit to the unit control box, using a suitable conduit fitting and one of the available 7/8-in. knockout openings. Attach the other end of the conduit to the solenoid valve, using a suitable fitting. Repeat for the other circuit. See Fig. 4. 30GXN,R UNITS —Route the field-supplied water proof conduit from the solenoid valves to the control box at the end of the unit. See Fig. 4 and 5. ALL UNITS — Using good wiring practice, connect a white wire from the solenoid valve on circuit A to a white wire from the solenoid valve on circuit B. Connect both wires to TB2-9 (30HX) or TB4-2 (30GX). Connect a pink wire to the solenoid valve on circuit A. Connect a gray wire to the solenoid valve on circuit B. Connect both the pink and gray wires to TB5-9 for all units. Figure 4 shows the correct location of the wiring connection points on the chiller. 3 4 BALL VALVE SEE DETAIL C FIELD INSTALLED PIPING TO CIRCUIT A DISCHARGE LINE MINIMUM LOAD PORT CIRCUIT A FIELD INSTALLED PIPING TO CIRCUIT B DISCHARGE LINE MINIMUM LOAD PORT CIRCUIT B O-RING SEAL FITTING SOLENOID DETAIL C VALVE MINIMUM LOAD CONTROL PORTS CIRCUIT A (080-138) CIRCUIT B (150, 160) CIRCUIT B (080-138) CIRCUIT A (150, 160) SOLENOID VALVE (TYP) BALL VALVE (TYP) O-RING SEAL FITTING AND ADAPTER (TYP) Fig. 3A — Typical Piping and Valve Installation 30GXN,R080-178 and Associated Modular Sizes (080-150, 160 Shown) Fig. 3B — Typical Piping and Valve Installation 30GXN,R204-350 and Associated Modular Sizes (204-268 Shown) > 102 > 5 MLC-B CONDUIT MLC-A CONDUIT 30GXN,R080-178* 30HX076-186 LEGEND C — Contactor Compressor CB — Circuit Breaker CCP — ComfortLink™ Compressor Protection CLHR — Cooler Heater Relay EMM — Energy Management Module EQUIP — Equipment EXV — Electronic Expansion Valve FB — Fuse Block FR — Fan Relay GFI-CO — Ground Fault Interrupter Convenience Outlet GND — Ground LR — Loader Relay MLC — Minimum Load Control OPC — Oil Pump Contactor PL — Plug Assembly PRI — Primary SCB — Screw Compressor Board SN — Sensor (Toroid) SPT — Suction Pressure Transducer TB — Terminal Block TRAN — Transformer Terminal Block Connection Unmarked Splice Factory Wiring Fig. 4 — Typical Minimum Load Control Wiring *And associated modular sizes. > 102 6 MLC-B CONDUIT MLC-A CONDUIT 30HX206-271 30GXN,R204-350* Fig. 4 — Typical Minimum Load Control Wiring (cont) *And associated modular sizes. > 102 7 ROUTE CONDUITS THROUGH TRAY AND ATTACH TO BOTTOM OF SHELF ON TB-4 SIDE OF CONTROL BOX Fig. 4 — Typical Minimum Load Control Wiring (cont) Fig. 5 — Routing Field-Supplied Wiring and Conduit (30GXN,R Shown) Step 5 — Configure Unit for Minimum Load Control — Once the piping installation and wiring installation are complete, the chiller must be configured for minimum load control operation. This may be done using the Navigator. Set the Enable/Off/Remote/Contact switch in the OFF position. ESCAPE 1. Press key until display reads ‘SELECT A MENU ITEM.’ Press key to light up Configuration mode. Press ENTER . Press key to select sub-mode ‘OPT1’. Press ENTER . 2. Press the down arrow key to select MLVS NO. 3. To enable the minimum load valve feature, press the ENTER key. 4. The display may read as follows. (If not, skip to Step 7.) ENTER PASSWORD ENTER 5. Press 1 1 1 1 then key. 6. The Navigator again displays the following: MLVS NO ENTER 7. Press key and The Navigator displays: MLVS YES The chiller is now configured for minimum load valve control. Step 6 — Test Minimum Load Relay Outputs — After the accessory components are installed and the unit is recharged and reconfigured, test the operation of the relay and solenoid valve using the Service Test software function. Test both circuits as follows: ESCAPE 1. Press the key until the Navigator displays ‘SELECT A MENU ITEM.’ Press the key and light up the Service Test mode. Press the ENTER ENTER key. Press the key and ‘TEST OFF’ will be displayed with ‘OFF’ flashing. Press the ENTER key then key and the Navigator displays ‘TEST ON.’ Switch the Enable/Off/Remote contact switch to the Enable position. 2. The display may read as follows. (If not, skip to Step 4.) ENTER PASSWORD ENTER 3. Press 1 1 1 1 then key. 4. Press the down arrow key to select the ‘COMP’ sub- mode. Press the ENTER key and key to display MLV OFF. ENTER 5. Press the key. ENTER 6. Press the and key to energize the relays. The display reads: MLV ON An audible click will be heard. Verify that the solenoid ...
Otros modelos de este manual:Refrigeradores - R080-528 (1.18 mb)