Carrier 62X 03 Series, Стартап

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APPENDIX C — EQUIPMENT QUICK START-UP GUIDANCE
Unit Preparation
Check that unit has been installed in accordance with the installa -
tion instructions, applicable codes and recommended service
clearances.
Verify Unit Installation
Verify the unit is installed using the correct power and heat source
as per the model tag (Fig. A).
• Verify installation voltage
• Verify installation MCA and MOCP
• Verify installation heat source (gas, electric, hot water,
steam)
• Verify installation heat fuel (natural gas or propane)
Unit Setup
Make sure that all hoods have been installed, shipping brackets re -
moved, and that the final filters, ERV filter (if equipped), and air
intake screen filters are properly installed. Verify curbs and
ductwork have been installed and are free from obstruction.
Condensate Traps
Units will have a drain pan under the evaporator and gas heat units
will have and additional condensate drain in the gas heat section.
Make sure both traps are installed properly and drain properly.
Gas heat can generate condensation during low ambient condi -
tions, so trap may need to be freeze protected.
Internal Wiring
Ensure that all electrical connections in the control box are tight -
ened as required. Verify that all sensors are reading properly (see
Calibration screen).
Field Installed Sensors
Verify that the SAT/RH sensor has been installed, wired, and con -
figured for voltage output. Verify that the DPT sensors) if
equipped) have been installed, wired and configured for voltage
output. Verify that the ZAT sensor (if required) is installed. Sen -
sors may have configurable ranges and outputs. Verify sensor
range and output match wring diagram and control program.
Crankcase Heaters
All units are equipped with crankcase heaters. Verify that they are
operational. The heaters must operate 24 hours before starting up
the unit for cooling operation. The crankcase heaters will be on
whenever the unit has power and the compressors are off.
Supply Fan
Make sure that fans rotate in the proper direction and are free from
obstruction. Make sure the spring isolation (if equipped) allows
for fan movement. Verify design airflow from submittal. For pres -
sure control, verify the DPT has been installed and verify the DPT
set point. For AMS control, verify the airflow CFM set point.
Exhaust Fan (If Equipped)
Make sure that fans rotate in the proper direction and are free from
obstruction. Make sure the spring isolation (if equipped) allows
for fan movement. Verify design airflow from submittal. For pres -
sure control, verify the DPT has been installed and verify the DPT
set point. For AMS control, verify the airflow CFM set point.
Energy Conservation Wheel (If Equipped)
Verify the ECW wheel rotates freely and in the correct direction.
Verify ECW belt tension. Check to make sure the ECW filters are
installed and clean.
Condenser
Make sure that the condenser fans rotate in the proper direction.
Check fans for obstructions. Verify that the condenser coil is free
from damage.
Unit Clearance
Verify unit clearance from other objects as per installation
instructions.
Gas Heating (If Equipped)
Check gas piping for leaks, verify installation as per local code.
Verify gas pressure as supply tap. Verify gas shut off valve. Verify
manifold pressure. Verify gas condensate trap has been installed.
Hot Water Heating (If Equipped)
Units with hot water ship with a hot water coil. Piping, piping pen -
etrations, and control valve and actuator are field provided. Actua -
tor control can come from unit controller. HW heat can operate
during low ambient conditions, so ensure antifreeze is used in cold
climates.
CONTROL
Verify that the unit and the controller have power and that the con
-
troller power is enabled. Verify that a control interface (Equipment
Touch, Equipment Touch app, Field Assistant) is available and in -
stalled.
SET POINTS
The unit has multiple methods of control and multiple set points.
The unit will ship factory configured for a basic control method
(OAT vs SAT control) and default set points. Confirm with the
customer if adjustments to the control and set points are needed.
OCCUPANCY
Verify how the unit occupancy will be controlled (BAS, 24/7, lo
-
cal schedule, or start-up switch). Verify that the occupancy control
has been provided or unit schedule has been added.
NETWORKING
Verify if the unit will be stand alone or networked with a BAS. If
the unit will be networked, verify that the appropriate wiring and
networking equipment (router) has been installed. Also verify that
the unit has been configured for networked control.
Equipment Touch Start-up Tips
Use the following instructions to start up the unit using the Equip -
ment Touch or the Equipment Touch App. The following tips can
be used to set operation modes needed for unit start-up. This mate -
rial is also available in bulletin 111-19-18 on HVAC Partners.
BASICS/SETUP
Each 62X controller will come pre-configured from the factory
to match the options of the unit. Some set points and settings
may need to be modified in the field by the installing contractor
or Carrier Commercial Service, to meet the requirements of the
application.
The recommended interface for start-up of the 62X is the Carrier
Equipment Touch (E-Touch) display or App. The E-Touch display
is wired to the 62X controller at the Rnet+ and Rnet- connector
pins. An external 24VAC is needed to power the E-Touch. Please
refer to the Equipment Touch Installation and Setup Guide for
more details.
The E-Touch App can be used on Android phones or tablets and
requires the USB Link Cable, which connects to the 62X at the
Rnet Access Port and the USB port of the Android device. Please
refer to the Equipment Touch App User Guide for further details.
Throughout startup, various passwords will be needed to setup the
E-Touch.
• 1111 is the Admin password and should allow full equip -
ment start-up.
• 1602: Carrier default BACnet device instance number