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Carrier 48TM016-028 Step 14 Install Humidistat for Optional Moisture Mi$er P a c kage

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Step 14 — Install Humidistat for Optional

MoistureMi$er™ Package — MoistureMi$er dehu-

midification package operation can be controlled by field

installation of a Carrier-approved humidistat. To install the

humidistat perform the following procedure:

1. Locate humidistat on a solid interior wall in the condi-

tioned space. Location should be a well ventilated area

to sense average humidity.

2. Route thermostat cable or equivalent single leads of col-

ored wire from Humidistat terminals through conduit in

unit to the low voltage connection on the 2-pole terminal

strip (TB3) as shown in Fig. 44 and Fig. 45. See Fig. 46

for operational diagram.

Fig. 45 — Typical MoistureMi$er Dehumidification

Package Control Box

Fig. 44 — Typical MoistureMi$er Dehumidification Package

Humidistat Wiring Schematic (460 V Unit Shown)

GRN-YEL

24V

TRAN1

RED BLK YEL

ORN

AC

GRN-YEL

24V

TRAN3

RED BLK YEL

ORN

AC

YEL

BLK

BLK BLK

TO CRANKCASE

HEATER CIRCUITS

YEL

BLK

21

11

BLK

BLK

TB3

S-LPS1

S-LPS2

LLSV1

LLSV2

12

CB4

3.2 AMPS

FACTORY INSTALLED JUMPER

(OR HUMIDISTAT IF USED)

MOISTUREMI$ER

LEGEND

CB — Circuit Breaker

LLSV — Liquid Line Solenoid Valve

LPS — Low-Pressure Switch

TB — Terminal Block

TRAN — Transformer

Contents

Main Installation, Start-Up and Service Instructions CONTENTS SAFETY CONSIDERATIONS 48TM016-028 Single-Package Rooftop Units Electric Cooling/Gas Heating INSTALLATION Step 1 Provide Unit Support Step 2 Rig and Place Unit Page Page Fig. 3 Rigging Details Page Page Page Table 1 Physical Data Table 1 Physical Data (cont) Step 3 Field F abricate Duct work Step 4 Make Un it Duct Conn ections Step 5 Install Flue Hood and Wind Baffle Step 6 T rap Condensate Drain Step 7 Orifice Chan ge Step 8 Install Gas Piping Step 9 Make Electrical Connections Page Table 5 Electrical Data Never operate a motor where a phase imbalance in supply voltage is greater than 2%. Step 10 Make Outdoor-Air Inlet Adjust- ments Step 11 Install Outdoor-Air Hood Step 12 Install All Accessori es Page Step 13 Adjust Factory-Installed Options FIELD THERMOSTAT* Fig. 26 Typical PremierLink Controls Wiring PremierLink SPT Space Temperature Sensor SAT Supply Air Temperature Sensor PL Plug Page Page Page Page Page Fig. 36 EconoMi$erIV Wiring Fig. 37 EconoMi$er2 Wiring Page Page Fig. 43 CO2Sensor Maximum Range Setting 2345678 5000 4000 3000 Page Step 14 Install Humidistat for Optional Moisture Mi$er P a c kage Page START-UP Unit Preparation Table 14 Fan Performance 48TMD016 (Low Heat Units)* Table 15 Fan Performance 48TMF016 (High Heat Units)* Table 16 Fan Performance 48TMD020 (Low Heat Units)* Refer to page 39 for general Fan Performance Data notes. Table 17 Fan Performance 48TMF020 (High Heat Units)* Refer to page 39 for general Fan Performance Data notes. Table 18 Fan Performance 48TMD025 (Low Heat Units)* Table 19 Fan Performance 48TMF025 (High Heat Units)* Table 20 Fan Performance 48TMD028 (Low Heat Units)* Refer to this page for general Fan Performance Data notes. Table 21 Fan Performance 48TMF028 (High Heat Units)* Refer to this page for general Fan Performance Data notes. GENERAL NOTES FOR FAN PERFORMANCE DATA TABLES Table 22 Air Quantity Limits Table 23 Accessory/FIOP Static Pressure (in. wg)* 48TM016-028 Table 24 Fan Rpm at Pulley Settings* Table 25 Evaporator-Fan Motor Data Table 26 Evaporator-Fan Motor Efficiency Operating Sequence Page SERVICE Cleaning Lubrication Evaporator Fan Performance Adjustment (Fig. 50 and 51) Evaporator F an Se rvice and Replacement Belt T ension Adjust ment Condenser-Fan Adjustment Po w e r F a i l u r e Refrigerant Charge Gas Valve Adjustment Main Burners Filter Dri er Protective Devices Relief De vices Diagnosti c IGC Control LEDs Optional Hinged Access Doo rs Page Page LEGEND AND NOTES FOR FIG. 57 AND 58 LEGEND TROUBLESHOOTING Unit T rou bleshooting EconoMi$erIV T r oubleshooting Page Table 28 Heating Service Analysis Table 29 MoistureMi$er Dehumidification Subcooler Service Analysis Table 30 EconoMi$erIV Input/Output Logic Page Page INDEX SERVICE TRAINING Page START-UP CHECKLIST PRE-START-UP START-UP