Carrier 40RMQ User Manual

Installation, Start-Up andService InstructionsCONTENTSPageSAFETY CONSIDERATIONS ... 1PRE-INSTALLATION ... 1Moving a

Fig. 1C — Dimensions — Sizes 028,034UNITUNIT WEIGHTlb (kg)40RM028 1020 (463)40RM034 1030 (467)40RMS028 1035 (469)40RMS034 1042 (473)TXV — Thermostatic

Unit Positioning — The unit can be mounted on thefloor for vertical application with return air entering the faceof the unit and supply air discharging

Unit Isolation — Where extremely quiet operation isessential, install isolators between floor and base of unit, orbetween ceiling and top section of un

IMPORTANT: Never attach the sensor to the suctionmanifold. Do NOT mount the sensor on a trapped por-tion of the suction line.40RM Series evaporator co

Table 2 — Factory-Installed Nozzle and Distributor DataUNITTXVQty...Part No.DISTRIBUTORQty...Part No.FEEDER TUBESPER DISTRIBUTOR*Qty...Size (in.)NOZZL

Table 3 — Fitting RequirementsUNITACCESSHOLE NO.*CONNECTIONTYPECIRCUITFITTINGS REQUIRED†(in.)40RM0071 Suction —11⁄8Street Elbow11⁄8Nipple, 105⁄8L11⁄8L

Table 3 — Fitting Requirements (cont)UNITACCESSHOLE NO.*CONNECTIONTYPECIRCUITFITTINGS REQUIRED†(in.)40RM0161 Suction Lower11⁄8Street Elbow11⁄8Nipple,

Table 3 — Fitting Requirements (cont)UNITACCESSHOLE NO.*CONNECTIONTYPECIRCUITFITTINGS REQUIRED†(in.)40RMS028, 0345 Supply Lower21⁄8Long Radius Elbow21

Condensate Drain — Install a trapped condensate drainline to unit connection as shown in Fig. 10. The unit drainconnection is a PVC stub. See Fig. 11.

Power Supply and Wiring — Check the unit dataplate to ensure that available power supply matches electri-cal characteristics of the unit. Provide a di

Table 1A — 40RM Physical Data, EnglishUNIT 40RM 007 008 012 014 016 024 028 034NOMINAL CAPACITY (Tons) 671⁄210 121⁄215 20 25 30OPERATING WEIGHT (lb)Ba

Table 4 — Electrical Data, Standard MotorsUNIT V*-PH-HZVOLTAGELIMITSFAN MOTOR POWER SUPPLYHp FLAMinimumCircuit AmpsMOCP40RM007208/230-1-60 187-253 1.3

Table 5 — Electrical Data, Alternate MotorsUNIT V*-PH-HZVOLTAGELIMITSFAN MOTOR POWER SUPPLYHp FLAMinimumCircuit AmpsMOCP40RM007208/230-1-60 187-253 2.

Table 6 — Fan Contactor Coil DataUNIT40RM, 40RMQ40RMSVOLTAGE(vac)MAXIMUMHOLDINGVA007-034 24 10Connecting Ductwork — Refer to the Carrier Sys-tem Desig

START-UPBefore starting unit, check the following and correct asnecessary:• Is unit solidly supported?• Is fan adjusted for speed and pulley alignment

Centering Fan Wheel — If fan and fan shaft assem-bly are not properly centered, blades may scrape against scrollor may create an objectionable whistli

Fan Pulley Alignment — Align as follows:1. Loosen setscrews on pulleys.2. Align pulleys visually and tighten setscrews on fan pul-ley to lock it in pl

Table 8A — Fan Motor Data, Standard Motor — EnglishUNIT40RM00740RM40RMQ40RMS00840RMS01040RM40RMQ40RMS01240RM40RMS01440RM40RMQ40RMS01640RM40RMS02440RM4

Table 8C — Fan Motor Data, Standard Motor — SIUNIT40RM00740RM40RMQ40RMS00840RMS01040RM40RMQ40RMS01240RM40RMS01440RM40RMQ40RMS01640RM40RMS02440RM40RMS0

Table 9A — Standard Drive Data, 60 Hz — EnglishUNIT40RM00740RM40RMQ40RMS00840RMS01040RM40RMQ40RMS01240RM40RMS01440RM40RMQ40RMS01640RM40RMS02440RM40RMS

Table 9C — High-Static Drive Data, 60 Hz — EnglishUNIT40RM00740RM40RMQ40RMS00840RMS01040RM40RMQ40RMS01240RM40RMS01440RM40RMQ40RMS01640RM40RMS02440RM40

Table 1B — 40RMQ Physical Data, EnglishUNIT 40RMQ 008 012 016NOMINAL CAPACITY (Tons) 71⁄210 15OPERATING WEIGHT (lb)Base Unit with TXV 385 427 713Plenu

Table 9E — Medium-Static Drive Data, 50 Hz — EnglishUNIT40RM00740RM40RMQ40RMS00840RMS01040RM40RMQ40RMS01240RM40RMS01440RM40RMQ40RMS01640RM40RMS02440RM

Table 9G — Standard Drive Data, 60 Hz — SIUNIT40RM00740RM40RMQ40RMS00840RMS01040RM40RMQ40RMS01240RM40RMS01440RM40RMQ40RMS01640RM40RMS02440RM40RMS02840

Table 9I — High-Static Drive Data, 60 Hz — SIUNIT40RM00740RM40RMQ40RMS00840RMS01040RM40RMQ40RMS01240RM40RMS01440RM40RMQ40RMS01640RM40RMS02440RM40RMS02

Table 9K — Medium-Static Drive Data, 50 Hz — SIUNIT40RM00740RM40RMQ40RMS00840RMS01040RM40RMQ40RMS01240RM40RMS01440RM40RMQ40RMS01640RM40RMS02440RM40RMS

Table 10A — Fan Performance Data — 0.0-1.2 in. wg ESP — EnglishUNITAIRFLOW(Cfm)EXTERNAL STATIC PRESSURE (in. wg)0.0 0.2 0.4 0.6 0.8 1.0 1.2Rpm Bhp Rpm

Table 10B — Fan Performance Data — 1.4-2.4 in. wg ESP — EnglishUNITAIRFLOW(Cfm)EXTERNAL STATIC PRESSURE (in. wg)1.4 1.6 1.8 2.0 2.2 2.4Rpm Bhp Rpm Bhp

Legend and Notes for Table 10A and 10BLEGENDBhp — Brake Horsepower Input to FanESP — External Static PressureNOTES:1. Maximum allowable fan speed is 1

Table 10C — Fan Performance Data — 0-300 Pa ESP — SIUNITAIRFLOW(L/s)EXTERNAL STATIC PRESSURE (Pa)0 50 100 150 200 250 300r/s kW r/s kW r/s kW r/s kW r

Table 10D — Fan Performance Data — 350-600 Pa ESP — SIUNITAIRFLOW(L/s)EXTERNAL STATIC PRESSURE (Pa)350 400 450 500 550 600r/s kW r/s kW r/s kW r/s kW

Legend and Notes for Tables 10C and 10DLEGENDESP — External Static PressureNOTES:1. Maximum allowable fan speed is 18.3 r/s for unit sizes 028 and034;

Table 1C — 40RMS Physical Data, EnglishUNIT 40RMS 008 010 012 014 016 024 028 034NOMINAL CAPACITY (Tons) 71⁄281⁄210 121⁄215 20 25 30OPERATING WEIGHT (

Copyright 1995 Carrier CorporationManufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and w

START-UP CHECKLIST(SPLIT SYSTEMS WITH 40RM/RMQ/RMS UNITS)A. Preliminary InformationOUTDOOR: MODEL NO. SERIAL NO.INDOOR: MODEL NO. SERIAL NO.ADDITIONAL

CHECK VOLTAGE IMBALANCELINE-TO-LINE VOLTS: ABVAC VBC V(AB + AC + BC)/3 = AVERAGE VOLTAGE =VMAXIMUM DEVIATION FROM AVERAGE VOLTAGE =VVOLTAGE IMBALANCE

Table 1D — 40RM Physical Data, SIUNIT 40RM 007 008 012 014 016 024 028 034NOMINAL CAPACITY (kW) 21 26 35 43 52 70 87 105OPERATING WEIGHT (kg)Base Unit

Table 1E — 40RMQ Physical Data, SIUNIT 40RMQ 008 012 016NOMINAL CAPACITY (kW) 26 35 52OPERATING WEIGHT (kg)Base Unit with TXV 175 194 323Plenum 44 44

Table 1F — 40RMS Physical Data, SIUNIT 40RMS 008 010 012 014 016 024 028 034NOMINAL CAPACITY (kW) 26 29 35 43 52 70 87 105OPERATING WEIGHT (kg)Base Un

TXV — Thermostatic Expansion ValveNOTES:1. Dimensions in [ ] are in millimeters.2. Direction of airflow.3. Recommended clearance:• Rear: 3 in. (76 mm )

Fig. 1B — Dimensions — Sizes 014-024TXV — Thermostatic Expansion ValveNOTES:1. Dimensions in [ ] are in millimeters.2. Direction of airflow.3. Recommen