Carrier 35E Installation And Start-Up Instructions Manual
Single-duct terminal units variable volume system
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Installation and Start-Up Instructions
CONTENTS
SAFETY CONSIDERATIONS. . . . . . . . . . . . . . . . . . . . . . 1
PRE-INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . .1,2
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
CONTROL ARRANGEMENTS . . . . . . . . . . . . . . . . . . . . 3
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Step 1 - Install Volume Control Box . . . . . . . . . . . . . 3
Step 2 - Make Duct Connections . . . . . . . . . . . . . . . . 4
Wiring Connections - Electronic Analog
or DDC (Direct Digital Controls) . . . . . . . . . . . . . . . . 5
CONTROL SET-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8,9
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Set Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Field Adjustments of Minimum and
Maximum Airflow Set Points . . . . . . . . . . . . . . . . . . . 8
Flow Probe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
PNEUMATIC CONTROLS . . . . . . . . . . . . . . . . . . . . . 10-12
Preparation for Balancing (Control
Sequences 1102 and 1103) . . . . . . . . . . . . . . . . . . . . 10
(Control Sequences 1102 and 1103). . . . . . . . . . . 11
NORMALLY OPEN DAMPER (Control
Sequence 1102)
CLOSED DAMPER (Control Sequence 1103)
(Control Sequences 1104-1110) . . . . . . . . . . . . . . . 11
Preventative Maintenance . . . . . . . . . . . . . . . . . . . . . . . 12
Pneumatic Control Troubleshooting . . . . . . . . . . . . 12
ANALOG CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . 13-15
(Control Sequences 2100-2105) . . . . . . . . . . . . . . . 13
Thermostat Installation. . . . . . . . . . . . . . . . . . . . . . . . . . 13
Programming Thermostat . . . . . . . . . . . . . . . . . . . . . . . 13
Analog Control Troubleshooting . . . . . . . . . . . . . . . . 14
AND SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-24
Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
• WIRING
Troubleshooting Proportional SSR Heat . . . . . . . . 24
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No.04-53350003-01
Page
Printed in U.S.A.
Form 35E-3SI
35E Single-Duct Terminal Units
Variable Volume System
SAFETY CONSIDERATIONS
SAFETY NOTE
Air-handling equipment will provide safe and reliable ser-
vice when operated within design specifications. The equip-
ment should be operated and serviced only by authorized per-
sonnel who have a thorough knowledge of system operation,
safety devices and emergency procedures.
Good judgment should be used in applying any manufac-
turer's instructions to avoid injury to personnel or damage to
equipment and property.
WARNING
Disconnect all power to the unit before performing mainte-
nance or service. Unit may automatically start if power is
not disconnected. Electrical shock and personal injury
could result.
CAUTION
If it is necessary to remove and dispose of mercury contac-
tors in electric heat section, follow all local, state, and fed-
eral laws regarding disposal of equipment containing
hazardous materials.
PRE-INSTALLATION
The 35E is a single duct, variable volume termi-
General -
nal available with factory-installed pneumatic, analog electron-
ic, Carrier Comfort Network
ume and temperature) electronic control options that can be
used in conjunction with unit-mounted electric or hot water
heat options. Figure 1 shows the basic box. Figure 2 is an
example of a unit identification label.
Fig. 1 - 35E Single Duct Box (Sizes 4-16)
Pg 1
(CCN) or VVT
(variable vol-
®
®
2-18
Replaces: 35E-2SI
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Table of Contents
Troubleshooting
Related Manuals for Carrier 35E
Summary of Contents for Carrier 35E
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Page 1: Table Of Contents
Sequence 1102) • REVERSE ACTING THERMOSTAT, NORMALLY PRE-INSTALLATION CLOSED DAMPER (Control Sequence 1103) The 35E is a single duct, variable volume termi- General — Balancing Procedure nal available with factory-installed pneumatic, analog electron- (Control Sequences 1104-1110) ....11... -
Page 2: Warranty
UNIT SUSPENSION — See Fig. 3 for unit suspension details. should be taken that the inlet collars and externally mounted components do not become damaged. Do not lift units using All Carrier furnished items carry the standard Warranty — collars, sensors or externally mounted components as handles. -
Page 3: Control Arrangements
1100 (Actuator only): DA-NC pressure dependent control CONTROL ARRANGEMENTS 1101 (Actuator only): RA-NO pressure dependent control The 35E single-duct unit is offered with a wide variety of 1102 (Single function controller): DA-NO with or without hot factory-mounted controls that regulate the volume of air deliv-... -
Page 4: Step 2 - Make Duct Connections
NOTE: To ensure proper equipment performance, it is recommended that a length of rigid straight duct equal to 3 times the duct diameter be provided to the inlet. Table 2 — 35E Basic Pressure Data MINIMUM AIRFLOW MINIMUM INLET STATIC PRESSURE... -
Page 5: Step 3 - Install Sensors And Make Field
LEGEND AFS — Airflow Switch DDC — Direct Digital Controls NOTE: Drawing is typical of 480V, 3-phase, 4-wire heater and control. Refer to actual unit wiring diagram. Fig. 5 — Typical Power Connections for 35E Units with 3-Stage Electric Heat... - Page 6 Table 3 — 35E Heater Power Wiring and Fuse Sizing (Single Phase, 60 Hz) 120 V 208 V 240 V 277 V HEATER BTUH HEATER HEATER HEATER HEATER SIZE (KW) AWG* AWG* AWG* AWG* 1,707 3,413 6,826 16.7 10,239 25.0 14.4...
- Page 7 Fig. 6 — Inlet Flow Sensor, CFM vs Pressure Signal (Linear Averaging Probe Chart)
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Page 8: Control Setup
It can be determined the output of the sensor to that of a pilot tube. from this table that the average design air velocity for 35E units For example, a velocity magnification may be used. All is equal to 2656 fpm at 1.0 in. - Page 9 AIR TERMINAL PERFORMANCE SHEET JOB NAME ______________________________________________ JOB LOCATION __________________________________________ CUSTOMER _____________________________________________ ENGINEER ______________________________________________ BUILDING LOCATION/FLOOR ______________________________ BUS NUMBER ___________________________________________ CONTROL SET POINTS COOLING HEATING CALIBRATION ZONE HEAT OCCUPIED UNOCCUPIED REHEAT (CFM) (CFM) GAIN ADDRESS SIZE NUMBER (IN./CFM) TYPE MULT. Fig.
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Page 10: Pneumatic Controls
PNEUMATIC CONTROLS Preparation for Balancing (Control Sequences 1102 and 1103) 1. Inspect all pneumatic connections to assure tight fit and proper location. 2. Verify that the thermostat being used is compatible with the control sequence provided (direct acting or reverse CS C- 20 03 0-1 ”... -
Page 11: Balancing Procedure (Control Sequences 1102 And 1103)
Balancing Procedure (Control Sequences Balancing Procedure (Control Sequences 1102 and 1103) 1104-1110) DIRECT ACTING THERMOSTAT, NORMALLY OPEN 1. Damper action is factory set at N.O. (normally open), or N.C. (normally closed). To change, perform the following DAMPER (CONTROL SEQUENCE 1102) — Refer to Fig. steps: a. -
Page 12: Preventative Maintenance
(This is typically 2 knob rotations counter clockwise from the fully clockwise position.) DA HEATING* DA COOLING Reset Reset NOTE: After the “LO STAT P” and “HI STAT P” initial ad- Span Span LO STAT ΔP LO STAT ΔP justments are made, cycle the thermostat pressure a few times to settle the internal reset mechanisms and verify settings. -
Page 13: Analog Controls
2. Route the wires through the opening in the back plate. ANALOG CONTROLS 3. Install the back plate directly to the junction box using the Balancing Procedures (Control Sequences screws supplied with the thermostat. Verify the hex The analog electronic control system is a 2100-2105) —... -
Page 14: Analog Control Troubleshooting
No Pressure Output Signal from Inlet The following Analog Control Troubleshooting — troubleshooting procedure is directed towards single duct cool- Sensor ing applications. The same concepts can be applied to other 1. Check the wiring. configurations. 2. Check air flow and sensor. Tubing should be free of kinks NOTE: For about 15 seconds after power is applied, no rota- and restrictions. - Page 15 Table 8 — Thermostat Settings for the CFM per Inlet Size AO1 & SENSOR CFMS PER INLET SIZE SIGNAL SETTING (IN. WG) 0.00 0.03 1107 0.05 1565 0.08 1004 1917 0.10 1159 2214 0.13 1296 2475 0.15 1087 1420 2711 0.18 1174 1533...
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Page 16: Proportional Ssr Electric Heat
setpoint so as to prevent overheating, stratification, and energy PROPORTIONAL (SSR) ELECTRIC HEAT waste from heated air lost through overhead returns. START-UP, OPERATION AND SERVICE Proportional SSR Heat is an electronic, time-proportional electric heat system. The heat output of the heater is modulated WARNING utilizing quiet, rapid performing solid state relays. - Page 17 WIRING — See Fig. 14. The EHM control board is powered There are three terminations for 24Vac control (Fig. 14, by 24Vac (Fig. 14, item 1) from the transformer in the electric item 5) of the electric heat (applications LX1, LX2, LX5, LX6, heater.
- Page 18 YELLOW #18 OPTIONAL DISCHARGE CONTROLS BLUE #18 TEMP POWER ON/OFF SENSOR HEATER Black APPLICATION CONTROLS BLACK #18 COMMON RED #18 CONTROLS HEATER OUTPUT 49°C 120°F Tcal 32°C 90°F 20°C EVO/EHM- 68°F 0-10V 2-10V 24Vac Neutral Relay Float 2Stg Xfmr Incr SSRs Select Sequence>...
- Page 19 YELLOW #18 24VAC INPUT BLUE #18 0-10 Vdc (0-20mA) BLACK #18 ANALOG OUT POS HEATER RED #18 ANALOG OUT NEG APPLICATION OPTIONAL DISCHARGE TEMP 49°C SENSOR 120°F Tcal 32°C 90°F 20°C EVO/EHM- 68°F 0-10V 2-10V 24Vac Neutral Relay Float 2Stg Xfmr Incr SSRs...
- Page 20 YELLOW #18 OPTIONAL CONTROLS DISCHARGE BLUE #18 INCREMENTAL POWER TEMP SENSOR (Incr) HEATER Black CONTROLS APPLICATION BLACK #18 COMMON RED #18 CONTROLS HEATER OUTPUT 49°C 120°F Tcal 32°C 90°F 20°C EVO/EHM- 68°F 0-10V 2-10V 24Vac Neutral Relay Float 2Stg Xfmr Incr SSRs Select Sequence>...
- Page 21 YELLOW #18 OPTIONAL THREE POINT CONTROLS DISCHARGE BLUE #18 POWER TEMP FLOATING SENSOR (Float) HEATER WHITE #18 HEATER DECREASE BLACK #18 APPLICATION COMMON RED #18 HEATER INCREASE 49°C 120°F Tcal 32°C 90°F 20°C EVO/EHM- 68°F 0-10V 2-10V 24Vac Neutral Relay Float 2Stg Xfmr...
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Page 23: Discharge Termperature Setpoint
DISCHARGE TEMPERATURE SETPOINT — Propor- The desired discharge temperature is set by rotating the dis- tional SSR Heat comes with a discharge temperature setpoint charge temperature set point dial arrow to the maximum outlet (DTS) option. This option allows a maximum temperature to temperature desired. -
Page 24: Troubleshooting Proportional Ssr Heat
LX5 will proportionally ramp heat output from 0 to 100% over a 4-minute 15-second span. © Carrier Corporation 2018 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.