Carrier 37HS - Manual

Carrier 37HS

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Table of Contents:

  • Page 2 – Fig. 2 — 37HS Unit With VAV Controls
  • Page 3 – Fig. 3 — Estimating Block Load
  • Page 20 – Heating —
  • Page 21 – Fig. 6 — 35BD Heating Slot Boot Diffuser
  • Page 22 – HEATING; Fig. 7 — Director Diffuser; Fig. 8 — Recommended Location for Changeover Moduline
  • Page 23 – TERMINAL SELECTION
  • Page 25 – Step 2 — Lay Out Terminals; Fig. 14 — Diffuser Locations for
  • Page 29 – Table 6 — 37HS1 Units in Air Series
  • Page 30 – Table 6 — 37HS1 Units in Air Series (cont)
  • Page 31 – Table 7 — 37HS2 Units in Air Series
  • Page 33 – Table 8 — 37HS4 Units in Air Series (cont)
  • Page 34 – In general, units in an air series should not be of mixed; Fig. 21 — Air Series of Units with Different Capacities
  • Page 35 – Fig. 22 — Air Series of Units of the Same Size and Capacity
  • Page 37 – Step 4 — Determine Controller Location —; Table 13 — Maximum Number of Units in an; Fig. 26 — Air Intake on Master Unit
  • Page 38 – Fig. 28 — Location of Volume Controller on Units in an Air Series; Fig. 27 — Location of Volume Controller
  • Page 39 – Fig. 29 — Incorrect Layout of Moduline
  • Page 42 – Fig. 32 — Bellows and Unit Air Valve Arrangement
  • Page 43 – Static pressure from above the baffle is called the high; Fig. 33 — Cross Section of 37HS Moduline
  • Page 44 – The Moduline; System-Powered Controls; Figure 36 shows the basic components: Control block (part; Fig. 35 — High and Low Pressure Pick-Up Tubes
  • Page 46 – Fig. 39 — 37HS Airflow Volume Controller
  • Page 47 – Fig. 43 — Constant Volume Control
  • Page 50 – Table 14 summarizes the control func-; Control Packages —; In order to obtain a desired set; Table 14 — Control Index
  • Page 51 – Table 15 — 37HS Control Combinations
  • Page 52 – Table 15 — 37HS Control Combinations (cont)
  • Page 55 – The low pressure air stream enters the low pressure cham-
  • Page 56 – Fig. 55 — Variable Volume Controls Schematic
  • Page 58 – Fig. 58 — Variable Volume Controls — Thermostat Open,
  • Page 59 – Controller Bleeding, Unit Heating
  • Page 60 – Fig. 61 — Location of CV Unit for Warm-Up Application
  • Page 64 – An electric warm-up valve located on the Moduline unit; Controller Partially Open, Unit Delivering Minimum Flow
  • Page 66 – the valve opens the control circuit between the volume; Thermostat Open, Controller Shut Off, Unit Shut Off
  • Page 68 – The electric interlock switch compares the bellows pres-; Thermostat Closed, Controller Bleeding, Unit Heating
  • Page 69 – Sequence, DA Thermostat
  • Page 70 – Fig. 80 — Basic Piping for Pneumatic
  • Page 71 – AIRFLOW ADJUSTMENT; Table 16 — Maximum Airflow Settings; Fig. 82A — NO Configuration for Fire Safety
  • Page 72 – Variation in Maximum Airflow —; As explained in; Table 17 — Multiple Unit Airflow Variation; Fig. 84 — Minimum and Maximum Airflow Adjustments, 37HS Controller
  • Page 73 – AIR DISTRIBUTION; Linear slot diffusers are an integral part of the Moduline; Diffuser Mixing Room Air and Primary Air
  • Page 74 – Fig. 86 — Typical Room Air Distribution Pattern
  • Page 75 – Fig. 87 — Slot Openings in Standard and Optional Diffusers
  • Page 76 – Table 18 — Standard Diffusers for 37HS1
  • Page 77 – Table 19 — Standard Diffusers for 37HS2
  • Page 78 – Table 20 — Standard Diffusers for 37HS4
  • Page 79 – Table 21 — Optional Diffusers for 37HS1
  • Page 80 – Table 22 — Optional Diffusers for 37HS2
  • Page 81 – Table 23 — Optional Diffusers for 37HS4
  • Page 82 – Throw for Standard Diffusers —; Table 24 — Air Throw Data —; The optimum air throw values given in the table are dis-; Table 25 — Air Throw Data —
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Application Data

CONTENTS

Page

INTRODUCTION

. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

BUILDING LOAD CALCULATION

. . . . . . . . . .

2-23

Cooling

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2

• LOAD CONSIDERATIONS
• DESIGN PROCEDURE

Heating

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

• OVERHEAD AIR HEATING

TERMINAL SELECTION AND LAYOUT

. . . . . 23-41

Introduction

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Definitions

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Step 1 — Determine Air Volume (Cfm)

Per Terminal

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Step 2 — Lay Out Terminals

. . . . . . . . . . . . . . . 25

Step 3 — Consider Unit Combinations

and Run-Out Duct

. . . . . . . . . . . . . . . . . . . . . . . . 27

Step 4 — Determine Controller Location

. . . . 37

Final Layout

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

THE MODULINE VALVE

. . . . . . . . . . . . . . . . . . . 41-44

The Moduline Control Concept

. . . . . . . . . . . . . 41

• HIGH AND LOW PRESSURE
• BELLOWS PRESSURE
• UNIT AIRFLOW DELIVERY

CONTROL APPLICATIONS

. . . . . . . . . . . . . . . . 44-50

Introduction

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

System-Powered Controls

. . . . . . . . . . . . . . . . . 44

• COMPONENTS OF THE SYSTEM-

POWERED CONTROL SYSTEM

• SYSTEM-POWERED APPLICATIONS
Constant Volume (CV) Cooling
CV Heating
Variable Air Volume (VAV) Cooling
VAV Cooling With Warm-Up
VAV Heating and Cooling With Changeover
VAV Heating
• SYSTEM-POWERED CONTROLS WITH

ELECTRIC INTERFACE

VAV Cooling With Electric Warm-Up
VAV Heating and Cooling With Electric Changeover
VAV Cooling With Electric Heat Interlock
• SYSTEM-POWERED CONTROLS WITH

PNEUMATIC INTERFACE

Pneumatic Sequenced Cooling/Heating (Hot Water)
VAV Cooling With Pneumatic Warm-Up
VAV Cooling With Fire Safety
Night Set Back Heating
VAV Cooling/Separate System Heating

CONTROL SELECTION

. . . . . . . . . . . . . . . . . . . 50-54

Control Index

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Control Packages

. . . . . . . . . . . . . . . . . . . . . . . . . 50

CONTROL OPERATING SEQUENCES

. . . . . . 55-71

System-Powered Controls

. . . . . . . . . . . . . . . . . 55

• CV COOLING
• CV HEATING
• VAV COOLING
• VAV COOLING WITH WARM-UP

Page

• VAV HEATING AND COOLING WITH

SYSTEM-POWERED CHANGEOVER

• VAV HEATING

System-Powered Controls With

Electric Interface

. . . . . . . . . . . . . . . . . . . . . . . . . 64

• VAV COOLING WITH ELECTRIC WARM-UP
• VAV HEATING AND COOLING WITH

ELECTRIC CHANGEOVER

• VAV COOLING WITH ELECTRIC HEAT

INTERLOCK

System-Powered Controls With

Pneumatic Interface

. . . . . . . . . . . . . . . . . . . . . . 69

• PNEUMATIC SEQUENCED HEATING/

COOLING (HOT WATER)

• VAV COOLING WITH PNEUMATIC

WARM-UP OR FIRE SAFETY SWITCH

AIRFLOW ADJUSTMENT

. . . . . . . . . . . . . . . . . . 71,72

Maximum Airflow (Cfm) Adjustment

. . . . . . . . 71

Minimum Airflow (Cfm) Adjustment

. . . . . . . . . 71

Variation in Maximum Airflow

. . . . . . . . . . . . . . 72

AIR DISTRIBUTION

. . . . . . . . . . . . . . . . . . . . . . . . 73

Throw for Standard Diffusers

. . . . . . . . . . . . . . . 82

INTRODUCTION

The Moduline

t

air terminal (Fig. 1) is a truly flexible unit

for the control and distribution of conditioned air to the oc-
cupied space. Available in 3 airflow sizes for single or mul-
tiple terminal installation, it is adaptable to a variety of

Fig. 1 — Moduline Air Terminal

37HS

Moduline

T

Air Terminals

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book 3
Tab

6a

PC 201

Catalog No. 513-741

Printed in U.S.A.

Form 37HS-1XA

Pg 1

6-91

Replaces: New

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Summary

Page 2 - Fig. 2 — 37HS Unit With VAV Controls

ceiling designs and building control systems. Moduline t ter- minals installed in modular ceilings can be moved easily whentenant requirements change, and the quiet, linear slot distri-bution integrates well in most commercial ceilings. Figure 2shows a 37HS Moduline unit with variable air volume (VA...

Page 3 - Fig. 3 — Estimating Block Load

LOAD CONSIDERATIONS Lighting — Even though lighting loads (Watts/sq ft) are con-siderably lower in today’s buildings, the lighting is by farthe largest load component. It is necessary, therefore, to pay close attention to getting an accurate estimate of the lighting requirements. In estimating the l...

Page 20 - Heating —

Moduline t Selection (Analysis of Data) — The printout shown below presents an analysis of the preceding data. Heating — Heat must be provided in a building to offset losses through the perimeter walls, windows, and roof. Inthe interior spaces the heat gain from lights and people willin many cases b...

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